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refactor(mybatis): 重构 Mybatis 相关代码

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-移动 AmountBig 类到新的包结构
- 新增 AmountTypeHandler 类用于处理 AmountBig 类型- 更新 application.yaml 配置- 重构 DBRouter 相关代码，优化切面逻辑
- 新增 LeetCode 相关解题代码
- 更新 Mybatis配置和测试代码
This commit is contained in:
whai 2024-11-27 21:46:41 +08:00
parent 0341ebc835
commit 501357cbd0
93 changed files with 5270 additions and 332 deletions
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24
ForJdk17/src/main/java/cn/whaifree/interview/td/p1.java Normal file
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@ -0,0 +1,24 @@
package cn.whaifree.interview.td;
/**
* @version 1.0
* @Author whai文海
* @Date 2024/11/26 18:57
* @注释
*/
public class p1 {
// 快慢指针
public static void main(String[] args) {
// DelayQueue<DelayedTask> delayQueue = new DelayQueue<>();
//
// // 创建并添加任务到队列
// DelayedTask task1 = new DelayedTask("Task 1", 1000); // 1秒后执行
// DelayedTask task2 = new DelayedTask("Task 2", 2000); // 2秒后执行
// delayQueue.put(task1);
// delayQueue.put(task2);
}
}

7
ForJdk17/src/main/java/cn/whaifree/redo/redo_all_241016/LeetCode215.java
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@ -101,6 +101,12 @@ public class LeetCode215 {
class Solution2 { class Solution2 {
/** /**
* 构建大根堆
*
* 构建每个小子树都是一个大根堆，再以子堆的父节点往上换
*
*
*
* 构建大根堆 * 构建大根堆
* 把根移动到最后 * 把根移动到最后
* 移动k次，顶部就是了 * 移动k次，顶部就是了
@ -138,6 +144,7 @@ public class LeetCode215 {
if (index != large) { if (index != large) {
swap(index, large); swap(index, large);
build(large, rightEdge); // large换完后large已经是小的了，小的下沉到合适的位置 build(large, rightEdge); // large换完后large已经是小的了，小的下沉到合适的位置
// 大的不断换上去，直到不换就退出
} }
} }

50
ForJdk17/src/main/java/cn/whaifree/redo/redo_all_241121/LeetCode165.java Normal file
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package cn.whaifree.redo.redo_all_241121;
import org.junit.Test;
/**
* @version 1.0
* @Author whai文海
* @Date 2024/11/24 11:42
* @注释
*/
public class LeetCode165 {
@Test
public void test() {
String s1 = "1.0";
String s2 = "1.0.0.0";
System.out.println(new Solution().compareVersion(s1, s2));
}
class Solution {
public int compareVersion(String version1, String version2) {
// 双指针，遇到.要退出
int index1 = 0;
int index2 = 0;
while (index1 < version1.length() || index2 < version2.length()) {
int A = 0;
while (index1 < version1.length() && version1.charAt(index1) != '.') {
A *= 10;
A += version1.charAt(index1) - '0';
index1++;
}
index1++;
int B = 0;
while (index2 < version2.length() && version2.charAt(index2) != '.') {
B *= 10;
B += version2.charAt(index2) - '0';
index2++;
}
index2++;
if (A != B) {
return A > B ? 1 : -1;
}
}
return 0;
}
}
}

65
ForJdk17/src/main/java/cn/whaifree/redo/redo_all_241121/LeetCode215.java Normal file
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@ -0,0 +1,65 @@
package cn.whaifree.redo.redo_all_241121;
import org.junit.Test;
/**
* @version 1.0
* @Author whai文海
* @Date 2024/11/24 12:30
* @注释
*/
public class LeetCode215 {
@Test
public void test() {
int[] nums = {3,2,3,1,2,4,5,5,6};
int k = 4;
System.out.println(new Solution().findKthLargest(nums, k));
}
class Solution {
public int findKthLargest(int[] nums, int k) {
heap = nums;
// 构建大根堆，最上面的最大
for (int i = heap.length / 2 - 1; i >= 0; i--) {
build(i, heap.length - 1);
}
// 从非叶子节点不断向下递归
// 把堆顶最大swap最后，最后再有新的边界从堆顶开始向下换
for (int i = heap.length - 1; i > heap.length - k; i--) {
swap(0, i);
build(0, i - 1);
}
return heap[0];
}
int[] heap = null;
public void build(int startToDown, int edge) {
int left = startToDown * 2 + 1;
int right = startToDown * 2 + 2;
int maxIndex = startToDown;
if (left <= edge && heap[maxIndex] < heap[left]) {
maxIndex = left;
}
if (right <= edge && heap[maxIndex] < heap[right]) {
maxIndex = right;
}
if (maxIndex != startToDown) {
swap(startToDown, maxIndex);
build(maxIndex, edge);
}
}
public void swap(int i, int j) {
int temp = heap[i];
heap[i] = heap[j];
heap[j] = temp;
}
}
}

31
ForJdk17/src/main/java/cn/whaifree/redo/redo_all_241121/LeetCode28.java Normal file
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@ -0,0 +1,31 @@
package cn.whaifree.redo.redo_all_241121;
import org.junit.Test;
/**
* @version 1.0
* @Author whai文海
* @Date 2024/11/24 17:14
* @注释
*/
public class LeetCode28 {
@Test
public void test() {
Solution solution = new Solution();
System.out.println(solution.strStr("hell", "ll"));
}
class Solution {
public int strStr(String haystack, String needle) {
for (int i = 0; i <= haystack.length() - needle.length(); i++) {
String substring = haystack.substring(i, i + needle.length());
if (substring.equals(needle)) {
return i;
}
}
return -1;
}
}
}

37
ForJdk17/src/main/java/cn/whaifree/redo/redo_all_241121/LeetCode7.java Normal file
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package cn.whaifree.redo.redo_all_241121;
import org.junit.Test;
/**
* @version 1.0
* @Author whai文海
* @Date 2024/11/24 13:57
* @注释
*/
public class LeetCode7 {
@Test
public void test() {
Solution solution = new Solution();
System.out.println(solution.reverse(123));
}
class Solution {
public int reverse(int x) { // 123
int res = 0;
while (x != 0) { // 正负都可以进入
if (res > Integer.MAX_VALUE / 10) {
return 0;
}
if (res < Integer.MIN_VALUE / 10) {
return 0;
}
int retail = x % 10; // 余数 3
x /= 10; // 12
res = res * 10 + retail; //
}
return res;
}
}
}

45
ForJdk17/src/main/java/cn/whaifree/redo/redo_all_241121/LeetCode9.java Normal file
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@ -0,0 +1,45 @@
package cn.whaifree.redo.redo_all_241121;
import org.junit.Test;
/**
* @version 1.0
* @Author whai文海
* @Date 2024/11/24 17:06
* @注释
*/
public class LeetCode9 {
@Test
public void test() {
Solution solution = new Solution();
System.out.println(solution.isPalindrome(123));
}
class Solution {
/**
* 12321
* @param x
* @return
*/
public boolean isPalindrome(int x) {
if (x < 0) {
return false;
}
// 反转后相等？
return reverse(x) == x;
}
public int reverse(int x) {
int res = 0;
while (x != 0) {
res *= 10;
res += x % 10;
x /= 10;
}
return res;
}
}
}

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Spring/pom.xml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>3.4.0</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>cn.whaifree</groupId>
<artifactId>Spring</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>Spring</name>
<description>Spring</description>
<url/>
<licenses>
<license/>
</licenses>
<developers>
<developer/>
</developers>
<scm>
<connection/>
<developerConnection/>
<tag/>
<url/>
</scm>
<properties>
<java.version>17</java.version>
</properties>
<dependencies>
<!-- mybatis-spring-boot-starter-->
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>3.0.3</version>
</dependency>
<!-- &lt;!&ndash; https://mvnrepository.com/artifact/cn.bugstack.middleware/db-router-spring-boot-starter &ndash;&gt;-->
<!-- <dependency>-->
<!-- <groupId>cn.bugstack.middleware</groupId>-->
<!-- <artifactId>db-router-spring-boot-starter</artifactId>-->
<!-- <version>1.0.2</version>-->
<!-- </dependency>-->
<!--security-->
<!-- <dependency>-->
<!-- <groupId>org.springframework.boot</groupId>-->
<!-- <artifactId>spring-boot-starter-security</artifactId>-->
<!-- </dependency>-->
<!-- https://mvnrepository.com/artifact/org.apache.poi/poi -->
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi</artifactId>
<version>5.0.0</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.poi/poi-ooxml -->
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-ooxml</artifactId>
<version>5.0.0</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-integration</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.integration</groupId>
<artifactId>spring-integration-ip</artifactId>
</dependency>
<!-- &lt;!&ndash; openAPI包，替换 Swagger 的 SpringFox &ndash;&gt;-->
<!-- <dependency>-->
<!-- <groupId>org.springdoc</groupId>-->
<!-- <artifactId>springdoc-openapi-starter-webmvc-ui</artifactId>-->
<!-- <version>2.2.0</version>-->
<!-- </dependency>-->
<!-- caffeine 缓存使用姿势 -->
<dependency>
<groupId>com.github.ben-manes.caffeine</groupId>
<artifactId>caffeine</artifactId>
</dependency>
<dependency>
<groupId>com.github.xiaoymin</groupId>
<artifactId>knife4j-openapi3-jakarta-spring-boot-starter</artifactId>
<version>4.4.0</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.redisson/redisson-spring-boot-starter -->
<dependency>
<groupId>org.redisson</groupId>
<artifactId>redisson-spring-boot-starter</artifactId>
<version>3.23.5</version>
</dependency>
<!-- <dependency>-->
<!-- <groupId>org.redisson</groupId>-->
<!-- <artifactId>redisson</artifactId>-->
<!-- <version>3.16.8</version>-->
<!-- </dependency>-->
<!-- rabbitMQ-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-amqp</artifactId>
</dependency>
<!--minio-->
<dependency>
<groupId>io.minio</groupId>
<artifactId>minio</artifactId>
<version>8.4.3</version>
</dependency>
<!-- 其他依赖 -->
<dependency>
<groupId>com.fasterxml.jackson.dataformat</groupId>
<artifactId>jackson-dataformat-xml</artifactId>
<version>2.13.0</version> <!-- 根据实际情况选择最新稳定版本 -->
</dependency>
<dependency>
<groupId>com.google.guava</groupId>
<artifactId>guava</artifactId>
<version>31.0.1-jre</version>
</dependency>
<!--FastJson-->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>2.0.36</version>
</dependency>
<!--hutool-->
<dependency>
<groupId>cn.hutool</groupId>
<artifactId>hutool-all</artifactId>
<version>5.8.13</version>
</dependency>
<!--aspect-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-aop</artifactId>
</dependency>
<dependency>
<artifactId>mysql-connector-java</artifactId>
<!--jdbc-->
<groupId>mysql</groupId>
<version>8.0.33</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-amqp</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jdbc</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<!-- <dependency>-->
<!-- <groupId>org.springframework.amqp</groupId>-->
<!-- <artifactId>spring-rabbit-test</artifactId>-->
<!-- <scope>test</scope>-->
<!-- </dependency>-->
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>

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Spring/src/main/java/cn/whaifree/springdemo/SpringDemoApplication.java Normal file
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@ -0,0 +1,15 @@
package cn.whaifree.springdemo;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.EnableAspectJAutoProxy;
@SpringBootApplication
@EnableAspectJAutoProxy
public class SpringDemoApplication {
public static void main(String[] args) {
SpringApplication.run(SpringDemoApplication.class, args);
}
}

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Spring/src/main/java/cn/whaifree/springdemo/aspect/RateLimitAspect.java Normal file
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package cn.whaifree.springdemo.aspect;
import cn.whaifree.springdemo.aspect.annotation.RateLimiter;
import cn.whaifree.springdemo.constant.LimitType;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.reflect.MethodSignature;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.script.RedisScript;
import org.springframework.stereotype.Component;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;
import java.lang.reflect.Method;
import java.util.Collections;
import java.util.List;
import java.util.Objects;
/**
* @version 1.0
* @Author whai文海
* @Date 2024/10/9 17:46
* @注释
*/
@Aspect
@Component
public class RateLimitAspect {
private static final Logger log = LoggerFactory.getLogger(RateLimitAspect.class);
private RedisTemplate<Object, Object> redisTemplate;
private RedisScript<Long> limitScript;
@Autowired
public void setRedisTemplate(RedisTemplate<Object, Object> redisTemplate) {
this.redisTemplate = redisTemplate;
}
@Autowired
public void setLimitScript(RedisScript<Long> limitScript) {
this.limitScript = limitScript;
}
/**
* key 对应方法，value 已经被访问的次数
*
* lua的逻辑：
*
*
*
* @param point
* @param rateLimiter
* @throws Throwable
*/
@Before("@annotation(rateLimiter)")
public void doBefore(JoinPoint point, RateLimiter rateLimiter) throws Throwable {
int time = rateLimiter.time(); // 多长时间
int count = rateLimiter.count(); // 允许次数
String combineKey = getCombineKey(rateLimiter, point); // 组合key， Class-Method
List<Object> keys = Collections.singletonList(combineKey);
try {
Long number = redisTemplate.execute(limitScript, keys, count, time);
if (Objects.isNull(number) || number.intValue() > count) { // 如果超过限额，报错
throw new Exception("访问过于频繁，请稍候再试");
}
log.info("限制请求'{}',当前请求'{}',缓存key'{}'", count, number.intValue(), combineKey);
} catch (Exception e) {
throw e;
}
}
public String getCombineKey(RateLimiter rateLimiter, JoinPoint point) {
StringBuffer stringBuffer = new StringBuffer(rateLimiter.key()); // 获取key
// if (rateLimiter.limitType() == LimitType.IP) {
// stringBuffer.append(IpUtils.getIpAddr(ServletUtils.getRequest())).append("-");
// }
if (rateLimiter.limitType() == LimitType.USER) {
ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
String username = attributes.getRequest().getParameter("userId");
if (username != null) {
stringBuffer.append(username).append("-");
}else {
throw new RuntimeException("用户id为空"); // 抛出异常，禁止继续执行，防止缓存穿透，缓存穿透指缓存中不存在该key，但是数据库中存在该ke
}
}
MethodSignature signature = (MethodSignature) point.getSignature();
Method method = signature.getMethod();
Class<?> targetClass = method.getDeclaringClass();
stringBuffer.append(targetClass.getName()).append("-").append(method.getName());
return stringBuffer.toString();
}
}

38
Spring/src/main/java/cn/whaifree/springdemo/aspect/annotation/RateLimiter.java Normal file
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package cn.whaifree.springdemo.aspect.annotation;
import cn.whaifree.springdemo.constant.CacheConstants;
import cn.whaifree.springdemo.constant.LimitType;
import java.lang.annotation.*;
/**
* @version 1.0
* @Author whai文海
* @Date 2024/10/9 17:43
* @注释
*/
@Target(ElementType.METHOD)
@Retention(RetentionPolicy.RUNTIME)
@Documented
public @interface RateLimiter {
/**
* 限流key
*/
public String key() default CacheConstants.RATE_LIMIT_KEY;
/**
* 限流时间,单位秒
*/
public int time() default 60;
/**
* 限流次数
*/
public int count() default 100;
/**
* 限流类型
*/
public LimitType limitType() default LimitType.DEFAULT;
}

44
Spring/src/main/java/cn/whaifree/springdemo/config/CacheConfig.java Normal file
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@ -0,0 +1,44 @@
//package cn.whaifree.springdemo.config;
//
//import org.springframework.cache.Cache;
//import org.springframework.cache.CacheManager;
//import org.springframework.cache.annotation.EnableCaching;
//import org.springframework.cache.concurrent.ConcurrentMapCache;
//import org.springframework.cache.transaction.TransactionAwareCacheDecorator;
//import org.springframework.context.annotation.Bean;
//import org.springframework.context.annotation.Configuration;
//import org.springframework.transaction.annotation.EnableTransactionManagement;
//
//import java.util.Arrays;
//import java.util.Collection;
//
///**
// * @version 1.0
// * @Author whai文海
// * @Date 2024/10/25 22:44
// * @注释
// */
//@Configuration
//@EnableCaching()
//@EnableTransactionManagement()
//public class CacheConfig {
// @Bean
// public CacheManager cacheManager() {
// return new CustomCacheManager();
// }
//
// // 自定义的 CacheManager，装饰每个缓存为 TransactionAwareCacheDecorator
// static class CustomCacheManager implements CacheManager {
// @Override
// public Cache getCache(String name) {
// Cache cache = new ConcurrentMapCache(name); // 使用 ConcurrentMapCache 实现缓存
// return new TransactionAwareCacheDecorator(cache); // 包装为 TransactionAwareCacheDecorator
// }
//
// @Override
// public Collection<String> getCacheNames() {
// return Arrays.asList("myCache"); // 设定缓存的名称
// }
// }
//
//}

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Spring/src/main/java/cn/whaifree/springdemo/config/FilterConfig.java Normal file
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@ -0,0 +1,32 @@
package cn.whaifree.springdemo.config;
import cn.whaifree.springdemo.utils.Filter.SelfFilter;
import lombok.extern.slf4j.Slf4j;
import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
/**
* @version 1.0
* @Author whai文海
* @Date 2024/10/12 22:15
* @注释
*/
@Slf4j
@Configuration
public class FilterConfig {
@Bean
public FilterRegistrationBean<SelfFilter> customFilterRegistration() {
FilterRegistrationBean<SelfFilter> registration = new FilterRegistrationBean<>();
registration.setFilter(new SelfFilter());
registration.addUrlPatterns("/*"); // 指定过滤器应用的 URL 模式
registration.setName("customFilter");
registration.setOrder(1); // 设置过滤器的顺序
return registration;
}
}

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Spring/src/main/java/cn/whaifree/springdemo/config/GlobalExceptionHandler.java Normal file
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package cn.whaifree.springdemo.config;
import cn.whaifree.springdemo.utils.ResVo;
import lombok.extern.slf4j.Slf4j;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestControllerAdvice;
/**
* @version 1.0
* @Author whai文海
* @Date 2024/10/11 16:28
* @注释
*/
@RestControllerAdvice
@Slf4j
public class GlobalExceptionHandler{
@ExceptionHandler(Exception.class)
public ResVo handleException(Exception e) {
log.error("系统异常", e);
return ResVo.error(e.getMessage());
}
}

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Spring/src/main/java/cn/whaifree/springdemo/config/MyAutoConfiguration.java Normal file
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package cn.whaifree.springdemo.config;
import jakarta.annotation.Resource;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.*;
import org.springframework.core.type.AnnotatedTypeMetadata;
import org.springframework.stereotype.Component;
import java.util.concurrent.ArrayBlockingQueue;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;
/**
* @version 1.0
* @Author whai文海
* @Date 2024/10/24 16:38
* @注释
*/
@Configuration
public class MyAutoConfiguration {
@Resource
private MyProperties myProperties;
@Bean(name = "whaiThreadPool")
@Conditional(value = {MyCondition.class})
public ThreadPoolExecutor myService(MyProperties myProperties) {
return new ThreadPoolExecutor(
myProperties.getCoreSize(),
myProperties.getMaxSize(),
10,
TimeUnit.SECONDS,
new ArrayBlockingQueue<>(10));
}
}
@Component
@ConfigurationProperties(prefix = "my.thread")
class MyProperties{
String name = "whai";
int coreSize = 1;
int maxSize = 2;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getCoreSize() {
return coreSize;
}
public void setCoreSize(int coreSize) {
this.coreSize = coreSize;
}
public int getMaxSize() {
return maxSize;
}
public void setMaxSize(int maxSize) {
this.maxSize = maxSize;
}
}
class MyCondition implements Condition {
@Override
public boolean matches(ConditionContext context, AnnotatedTypeMetadata metadata) {
String property = context.getEnvironment().getProperty("my.condition");
if ("true".equals(property)) {
return true;
}
System.out.println("未加载");
return false;
}
}

17
Spring/src/main/java/cn/whaifree/springdemo/config/MybatisConfig.java Normal file
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package cn.whaifree.springdemo.config;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.context.annotation.Configuration;
/**
* @version 1.0
* @Author whai文海
* @Date 2024/11/1 12:41
* @注释
*/
@Configuration
//@MapperScan("cn.whaifree.springdemo.mybatis.mapper")
@MapperScan("cn.whaifree.springdemo.mybatis.mapper")
public class MybatisConfig {
}

78
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package cn.whaifree.springdemo.config;
import com.alibaba.fastjson.support.spring.FastJsonRedisSerializer;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.script.DefaultRedisScript;
import org.springframework.data.redis.serializer.StringRedisSerializer;
/**
* @version 1.0
* @Author whai文海
* @Date 2024/10/9 17:47
* @注释
*/
@Configuration
public class RedisConfig {
@Bean
@SuppressWarnings(value = {"unchecked", "rawtypes"})
public RedisTemplate<Object, Object> redisTemplate(RedisConnectionFactory connectionFactory) {
RedisTemplate<Object, Object> template = new RedisTemplate<>();
template.setConnectionFactory(connectionFactory);
FastJsonRedisSerializer jsonRedisSerializer = new FastJsonRedisSerializer(Object.class);
// 使用StringRedisSerializer来序列化和反序列化redis的key值
template.setKeySerializer(new StringRedisSerializer());
template.setValueSerializer(jsonRedisSerializer);
// Hash的key也采用StringRedisSerializer的序列化方式
template.setHashKeySerializer(new StringRedisSerializer());
template.setHashValueSerializer(jsonRedisSerializer);
template.afterPropertiesSet();
return template;
}
/**
* RedisScript是Redis官方Java客户端Jedis中的一个类，用于执行Redis脚本（Lua脚本）。
*
* 在Redis中，Lua脚本是一种强大的工具，可以用于执行复杂的操作，如事务、发布/订阅、锁等。通过使用Lua脚本，你可以将多个操作封装在一个脚本中，然后一次性发送给Redis服务器执行，这样可以减少网络延迟和服务器负载。
*
* RedisScript类提供了一些方法，可以用于设置脚本的返回类型、执行脚本、获取脚本的返回值等。
*
* @return
*/
@Bean
public DefaultRedisScript<Long> limitScript() {
DefaultRedisScript<Long> redisScript = new DefaultRedisScript<>();
redisScript.setScriptText(limitScriptText());
redisScript.setResultType(Long.class);
return redisScript;
}
/**
* 限流脚本
*/
private String limitScriptText() {
// 传入的参数有 time多长时间 count多少次
return "local key = KEYS[1]\n" + //test:cn.whaifree.springdemo.controller.TestController-test
"local count = tonumber(ARGV[1])\n" + // 传入的次数， 比如1次
"local time = tonumber(ARGV[2])\n" + // 传入的时间，比如2s
"local current = redis.call('get', key);\n" + // 获取当前的次数
"if current and tonumber(current) > count then\n" +
" return tonumber(current);\n" + // 当前的次数超过count 表示当前的次数超过限额，直接返回，表示拒绝
"end\n" +
"current = redis.call('incr', key)\n" + // 如果没有超过限额，对value，即current增加
"if tonumber(current) == 1 then\n" + // 如果是第一次，增加过期时间
" redis.call('expire', key, time)\n" +
"end\n" +
"return tonumber(current);";
}
}

26
Spring/src/main/java/cn/whaifree/springdemo/config/RedissonConfig.java Normal file
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package cn.whaifree.springdemo.config;
import org.redisson.Redisson;
import org.redisson.api.RedissonClient;
import org.redisson.config.Config;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
/**
* @version 1.0
* @Author whai文海
* @Date 2024/10/12 20:56
* @注释
*/
@Configuration
public class RedissonConfig {
// @Bean
// public RedissonClient redissonClient() {
// Config config = new Config();
// config.useSingleServer().setAddress("redis://127.0.0.1:6379");
// config.setThreads(10);
// RedissonClient redissonClient = Redisson.create(config);
// return redissonClient;
// }
}

42
Spring/src/main/java/cn/whaifree/springdemo/config/SwaggerConfig.java Normal file
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//package cn.whaifree.springdemo.config;
//
//import io.swagger.v3.oas.models.ExternalDocumentation;
//import io.swagger.v3.oas.models.OpenAPI;
//import io.swagger.v3.oas.models.info.Info;
//import org.springframework.beans.factory.annotation.Value;
//import org.springframework.context.annotation.Bean;
//import org.springframework.context.annotation.Configuration;
//
//
//import java.util.ArrayList;
//
///**
// * Created with IntelliJ IDEA.
// *
// * @author : 村雨遥
// * @version : 1.0
// * @project : springboot-swagger3-demo
// * @package : com.cunyu.springbootswagger3demo.config
// * @className : SwaggerConfig
// * @createTime : 2022/1/6 14:19
// * @email : 747731461@qq.com
// * @微信 : cunyu1024
// * @公众号 : 村雨遥
// * @网站 : https://cunyu1943.github.io
// * @description :
// */
//
//@Configuration
//public class SwaggerConfig {
// @Bean
// public OpenAPI openAPI() {
// return new OpenAPI()
// .info(new Info()
// .title("接口文档标题")
// .description("SpringBoot3 集成 Swagger3接口文档")
// .version("v1"))
// .externalDocs(new ExternalDocumentation()
// .description("项目API文档")
// .url("/"));
// }
//}

97
Spring/src/main/java/cn/whaifree/springdemo/config/TransactionConfig.java Normal file
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//package cn.whaifree.springdemo.config;
//
//import jakarta.annotation.Resource;
//import lombok.extern.slf4j.Slf4j;
//import org.springframework.beans.factory.annotation.Autowired;
//import org.springframework.context.annotation.Bean;
//import org.springframework.context.annotation.Configuration;
//import org.springframework.jdbc.datasource.DataSourceTransactionManager;
//import org.springframework.transaction.PlatformTransactionManager;
//import org.springframework.transaction.TransactionDefinition;
//import org.springframework.transaction.TransactionManager;
//import org.springframework.transaction.TransactionStatus;
//import org.springframework.transaction.annotation.TransactionManagementConfigurer;
//import org.springframework.transaction.annotation.Transactional;
//import org.springframework.transaction.support.DefaultTransactionDefinition;
//import org.springframework.transaction.support.TransactionCallback;
//import org.springframework.transaction.support.TransactionTemplate;
//
//import javax.sql.DataSource;
//
///**
// * @version 1.0
// * @Author whai文海
// * @Date 2024/11/15 16:37
// * @注释
// */
//@Configuration
//@Slf4j
//public class TransactionConfig implements TransactionManagementConfigurer {
//
//
// @Autowired
// private TransactionTemplate transactionTemplate;
//
// //配置事务管理器
// @Bean
// public TransactionManager transactionManager(DataSource dataSource) {
// DataSourceTransactionManager transactionManager = new DataSourceTransactionManager(dataSource);
// // 打印参数
// log.info("transactionManager: {}", transactionManager);
// log.info("dataSource: {}", dataSource);
// return transactionManager;
// }
//
// @Resource(name="txManager1")
// private PlatformTransactionManager txManager1;
//
// // 创建事务管理器1
// @Bean(name = "txManager1")
// public PlatformTransactionManager txManager(DataSource dataSource) {
// return new DataSourceTransactionManager(dataSource);
// }
//
// @Override
// public TransactionManager annotationDrivenTransactionManager() {
// return txManager1;
// }
//
// @Transactional(value="txManager1")
// public void addUser() {
//
// }
//
// public void addUser2() {
// DefaultTransactionDefinition transactionDefinition = new DefaultTransactionDefinition();
// transactionDefinition.setPropagationBehavior(TransactionDefinition.PROPAGATION_REQUIRED);
// transactionDefinition.setIsolationLevel(TransactionDefinition.ISOLATION_READ_COMMITTED);
// TransactionStatus transaction = txManager1.getTransaction(transactionDefinition);
// try {
// txManager1.commit(transaction);
// } catch (Exception e) {
// txManager1.rollback(transaction);
// }
// }
//
// /**
// * 编程事务
// * TransactionTemplate
// * PlatformTransactionManager
// * DataSourceTransactionManager
// */
//
// public void adduser3() {
// Object execute = transactionTemplate.execute(new TransactionCallback<Object>() {
// @Override
// public Object doInTransaction(TransactionStatus status) {
// return null;
// }
// });
// }
//
//
//}
//
//class Tran{
//
//}

11
Spring/src/main/java/cn/whaifree/springdemo/constant/CacheConstants.java Normal file
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package cn.whaifree.springdemo.constant;
/**
* @version 1.0
* @Author whai文海
* @Date 2024/10/9 17:44
* @注释
*/
public class CacheConstants {
public static final String RATE_LIMIT_KEY = "rate_limit:";
}

13
Spring/src/main/java/cn/whaifree/springdemo/constant/LimitType.java Normal file
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package cn.whaifree.springdemo.constant;
/**
* @version 1.0
* @Author whai文海
* @Date 2024/10/9 17:45
* @注释
*/
public enum LimitType {
IP,
USER,
DEFAULT;
}

67
Spring/src/main/java/cn/whaifree/springdemo/controller/CacheDecoratorDemo/CacheDecoratorController.java Normal file
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//package cn.whaifree.springdemo.controller.CacheDecoratorDemo;
//
//import cn.hutool.extra.spring.SpringUtil;
//import jakarta.annotation.Resource;
//import org.springframework.cache.Cache;
//import org.springframework.cache.annotation.CachePut;
//import org.springframework.cache.annotation.Cacheable;
//import org.springframework.data.redis.cache.RedisCacheManager;
//import org.springframework.transaction.annotation.Transactional;
//import org.springframework.web.bind.annotation.RequestMapping;
//import org.springframework.web.bind.annotation.RestController;
//
///**
// * @version 1.0
// * @Author whai文海
// * @Date 2024/10/25 22:43
// * @注释
// */
//@RestController
//public class CacheDecoratorController {
//
// @Resource
// private final RedisCacheManager cacheManager;
//
//
// public CacheDecoratorController(RedisCacheManager cacheManager) {
// this.cacheManager = cacheManager;
// }
//
// @RequestMapping("/getData")
// public String getData(Long id) {
// // 先从缓存中获取数据
// String data = SpringUtil.getBean(CacheDecoratorController.class).getDataById(id);
// return data;
// }
//
// @RequestMapping("/update")
// public void update(Long id, String newValue) {
// // 更新数据
// SpringUtil.getBean(CacheDecoratorController.class).updateData(id, newValue);
// }
//
// @Cacheable(value = "myCache", key = "#id")
// public String getDataById(Long id) {
// // 模拟获取数据操作
// return "Data for ID " + id;
// }
//
// @Transactional
// @CachePut(value = "myCache", key = "#id", condition = "#result != null")
// public String updateData(Long id, String newValue) {
// // 更新数据库操作
// // ...
// // 返回的新值会在事务提交后自动更新到缓存中
// // return newValue;
//
//
// // 或者手动操作缓存
// Cache myCache = cacheManager.getCache("myCache");
// if (myCache != null) {
// myCache.put(id, newValue);
// return null;
// }
// return null;
// }
//
//}

49
Spring/src/main/java/cn/whaifree/springdemo/controller/SSE/SSEEmitter.java Normal file
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//package cn.whaifree.springdemo.controller.SSE;
//
//import cn.hutool.core.util.StrUtil;
//import org.springframework.http.MediaType;
//import org.springframework.web.bind.annotation.GetMapping;
//import org.springframework.web.bind.annotation.PostMapping;
//import org.springframework.web.bind.annotation.RestController;
//import org.springframework.web.servlet.mvc.method.annotation.SseEmitter;
//
//import java.io.IOException;
//import java.util.Map;
//
///**
// * @version 1.0
// * @Author whai文海
// * @Date 2024/10/22 21:44
// * @注释
// */
//@RestController
//public class SSEEmitter {
//
// Map<String, SseEmitter> sseEmitterMap = new java.util.HashMap<>();
//
// @GetMapping(value = "/sseStart", produces = MediaType.TEXT_EVENT_STREAM_VALUE)
// public SseEmitter sse(String key) {
// System.out.println(key);
// if (!sseEmitterMap.containsKey(key)) {
// SseEmitter sseEmitter = new SseEmitter();
// sseEmitterMap.put(key, sseEmitter);
// }
//
// return sseEmitterMap.get(key);
// }
//
// @PostMapping("sendSSE")
// public void send(String key, String message) {
// if (sseEmitterMap.containsKey(key)) {
// SseEmitter sseEmitter = sseEmitterMap.get(key);
// try {
// System.out.println(StrUtil.format("send message to {}:{}", key, message));
// sseEmitter.send(message);
// } catch (IOException e) {
// e.printStackTrace();
// }
// }else {
// throw new IllegalArgumentException("No such key");
// }
// }
//}

58
Spring/src/main/java/cn/whaifree/springdemo/controller/TS/HTTP/QBController.java Normal file
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package cn.whaifree.springdemo.controller.TS.HTTP;
import cn.whaifree.springdemo.controller.TS.common.ProcessStrategy;
import cn.whaifree.springdemo.controller.TS.common.ProcessTarget;
import cn.whaifree.springdemo.controller.TS.common.TargetDown;
import jakarta.annotation.Resource;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import javax.imageio.ImageIO;
import javax.imageio.ImageWriter;
import javax.imageio.plugins.jpeg.JPEGImageWriteParam;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
/**
* @version 1.0
* @Author whai文海
* @Date 2024/11/22 21:21
* @注释
*/
@RestController
public class QBController {
@RequestMapping("/TargetDown")
public void targetDown(String msg) {
ProcessStrategy processStrategy = ProcessTarget.getProcessStrategy(ProcessTarget.TARGET_DOWN);
processStrategy.process(msg);
}
public void compressImage(InputStream inputStream, float quality, String fileFullName) {
try {
BufferedImage read = ImageIO.read(inputStream);
File out = new File(fileFullName);
ImageWriter writer = ImageIO.getImageWritersByFormatName("jpg").next();
OutputStream os = new java.io.FileOutputStream(out);
JPEGImageWriteParam param = new JPEGImageWriteParam(null);
param.setCompressionMode(JPEGImageWriteParam.MODE_EXPLICIT);
param.setCompressionQuality(quality); // 压缩质量
writer.setOutput(ImageIO.createImageOutputStream(os));
writer.write(null, new javax.imageio.IIOImage(read, null, null), param);
} catch (IOException e) {
throw new RuntimeException(e);
}
}
@RequestMapping("/TargetFind")
public void targetFind(String msg) {
ProcessStrategy processStrategy = ProcessTarget.getProcessStrategy(ProcessTarget.TARGET_FIND);
processStrategy.process(msg);
}
}

55
Spring/src/main/java/cn/whaifree/springdemo/controller/TS/SSE/SSEEmitterDemo.java Normal file
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package cn.whaifree.springdemo.controller.TS.SSE;
import cn.hutool.core.util.StrUtil;
import org.springframework.http.MediaType;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.servlet.mvc.method.annotation.SseEmitter;
import java.io.IOException;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
/**
* @version 1.0
* @Author whai文海
* @Date 2024/10/22 21:44
* @注释
*/
@RestController
public class SSEEmitterDemo {
Map<String, SseEmitter> sseEmitterMap = new ConcurrentHashMap<>();
/**
* 签约
* @param key
* @return
*/
@GetMapping(value = "/sseStart", produces = MediaType.TEXT_EVENT_STREAM_VALUE)
public SseEmitter sse(String key) {
System.out.println(key);
if (!sseEmitterMap.containsKey(key)) {
SseEmitter sseEmitter = new SseEmitter();
sseEmitterMap.put(key, sseEmitter);
}
return sseEmitterMap.get(key);
}
@PostMapping("sendSSE")
public void send(String key, String message) {
if (sseEmitterMap.containsKey(key)) {
SseEmitter sseEmitter = sseEmitterMap.get(key);
try {
System.out.println(StrUtil.format("send message to {}:{}", key, message));
sseEmitter.send(message);
} catch (IOException e) {
e.printStackTrace();
}
}else {
throw new IllegalArgumentException("No such key");
}
}
}

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Spring/src/main/java/cn/whaifree/springdemo/controller/TS/UDP/UDPConfig.java Normal file
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package cn.whaifree.springdemo.controller.TS.UDP;
import cn.whaifree.springdemo.controller.TS.common.ProcessStrategy;
import cn.whaifree.springdemo.controller.TS.common.ProcessTarget;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.integration.annotation.BridgeFrom;
import org.springframework.integration.annotation.Transformer;
import org.springframework.integration.channel.DirectChannel;
import org.springframework.integration.channel.PublishSubscribeChannel;
import org.springframework.integration.dispatcher.LoadBalancingStrategy;
import org.springframework.integration.dsl.*;
import org.springframework.integration.handler.MessageProcessor;
import org.springframework.integration.ip.udp.UnicastReceivingChannelAdapter;
import org.springframework.integration.ip.udp.UnicastSendingMessageHandler;
import org.springframework.integration.transformer.AbstractMessageProcessingTransformer;
import org.springframework.messaging.Message;
import org.springframework.messaging.MessageChannel;
import org.springframework.messaging.MessageHandler;
import org.springframework.messaging.MessagingException;
import org.springframework.messaging.handler.annotation.Headers;
import org.springframework.messaging.handler.annotation.Payload;
import org.springframework.stereotype.Component;
import javax.crypto.Cipher;
import javax.crypto.NoSuchPaddingException;
import javax.crypto.spec.SecretKeySpec;
import java.security.NoSuchAlgorithmException;
import java.util.Base64;
import java.util.Map;
/**
* @version 1.0
* @Author whai文海
* @Date 2024/11/22 20:32
* @注释
*/
@Configuration
public class UDPConfig {
static final String encoderNumber = "123";
/*
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-integration</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.integration</groupId>
<artifactId>spring-integration-ip</artifactId>
</dependency>
*/
/**
* 接收
*
* @param udpClient
* @return
*/
@Bean
public IntegrationFlow processUniCastUdpMessage(@Qualifier("UDPGet") MessageHandler udpClient) {
UnicastReceivingChannelAdapter channelAdapter = new UnicastReceivingChannelAdapter(9030);
channelAdapter.setReceiveBufferSize(4096);
channelAdapter.setLengthCheck(false);
return IntegrationFlow
.from(channelAdapter)
.handle(udpClient)
// .transform(this, "encoderTransformer")
// .channel("udpChannel")
.get();
}
class Encryptor {
// public static String encrypt(Object msg, String key) {
// try {
// SecretKeySpec secretKey = new SecretKeySpec(key.getBytes(), "AES");
// Cipher cipher = Cipher.getInstance("AES");
// cipher.init(Cipher.ENCRYPT_MODE, secretKey);
// byte[] encrypted = cipher.doFinal((byte[]) msg);
// return Base64.getEncoder().encodeToString(encrypted);
// } catch (Exception e) {
// throw new RuntimeException("Encryption failed", e);
// }
// }
//
// public static byte[] decrypt(byte[] encryptedMsg, String key) {
// try {
// SecretKeySpec secretKey = new SecretKeySpec(key.getBytes(), "AES");
// Cipher cipher = Cipher.getInstance("AES");
// cipher.init(Cipher.DECRYPT_MODE, secretKey);
// return cipher.doFinal(Base64.getDecoder().decode(encryptedMsg));
// } catch (Exception e) {
// throw new RuntimeException(e);
// }
// }
private static final String ALGORITHM = "AES";
private static byte[] SECRET_KEY = null; // 替换为你自己的密钥，密钥长度必须符合算法要求
public static byte[] encrypt(byte[] data) throws Exception {
Cipher cipher = Cipher.getInstance(ALGORITHM);
SecretKeySpec secretKey = new SecretKeySpec(SECRET_KEY, ALGORITHM);
cipher.init(Cipher.ENCRYPT_MODE, secretKey);
return cipher.doFinal(data);
}
public static byte[] decrypt(byte[] encryptedData) throws Exception {
Cipher cipher = Cipher.getInstance(ALGORITHM);
SecretKeySpec secretKey = new SecretKeySpec(SECRET_KEY, ALGORITHM);
cipher.init(Cipher.DECRYPT_MODE, secretKey);
return cipher.doFinal(encryptedData);
}
}
//
// /**
// * 转换器 在消息通道（Channel）之间传递消息时进行数据格式的转换
// *
// * @param payload
// * @param headers
// */
// @Transformer(inputChannel = "channelAdapter", outputChannel = "udpChannel")
// public byte[] encoderTransformer(@Payload byte[] payload, @Headers Map<String, Object> headers) {
// return Encryptor.decrypt(payload, encoderNumber);
// }
// @Bean("udpChannel")
// public MessageChannel udpChannel() {
// return new DirectChannel();
// }
// /**
// * 一对一
// *
// * @return
// */
// @Bean
// @BridgeFrom("messageChannel2")
// public MessageChannel directChannel2() {
// return new DirectChannel();
// }
//
// /**
// * 一对一
// *
// * @return
// */
// @Bean
// @BridgeFrom("messageChannel2")
// public MessageChannel directChannel() {
// return MessageChannels.direct().getObject();
// }
//
// /**
// * 发布订阅 一对多
// */
// @Bean
// public MessageChannel messageChannel2() {
// return MessageChannels.publishSubscribe().getObject();
// }
/**
* 发送
*
* @return
*/
@Bean
public UnicastSendingMessageHandler sending() {
return new UnicastSendingMessageHandler("localhost", 9030, false);
}
}
@Component("UDPGet")
@Slf4j
class UdpGet implements MessageHandler {
@Override
public void handleMessage(Message<?> message) throws MessagingException {
byte[] frame = (byte[]) message.getPayload();
StringBuilder result = new StringBuilder("16进制表示：");
for (byte aByte : frame) {
result.append(String.format("%02x ", aByte));
}
log.info(result.toString());
ProcessStrategy processStrategy = ProcessTarget.getProcessStrategy(frame);
processStrategy.process(frame);
}
}

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Spring/src/main/java/cn/whaifree/springdemo/controller/TS/UDP/UDPSendUtils.java Normal file
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package cn.whaifree.springdemo.controller.TS.UDP;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.integration.ip.udp.UnicastSendingMessageHandler;
import org.springframework.integration.support.MessageBuilder;
import org.springframework.messaging.Message;
import org.springframework.stereotype.Component;
/**
* @version 1.0
* @Author whai文海
* @Date 2024/11/22 20:24
* @注释
*/
@Component
public class UDPSendUtils {
private final UnicastSendingMessageHandler sender;
@Autowired
public UDPSendUtils(UnicastSendingMessageHandler sender) {
this.sender = sender;
}
public void send(Object object) {
Message<Object> msg = MessageBuilder.withPayload(object).build();
sender.handleMessage(msg);
}
}

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Spring/src/main/java/cn/whaifree/springdemo/controller/TS/common/ProcessStrategy.java Normal file
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package cn.whaifree.springdemo.controller.TS.common;
public interface ProcessStrategy {
void process(byte[] frame);
void process(Object o);
}

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package cn.whaifree.springdemo.controller.TS.common;
import cn.hutool.extra.spring.SpringUtil;
import jakarta.annotation.PostConstruct;
import org.springframework.stereotype.Component;
import java.util.HashMap;
/**
* @version 1.0
* @Author whai文海
* @Date 2024/11/22 20:48
* @注释
*/
@Component
public class ProcessTarget {
public static final int TARGET_FIND = processToInt(new byte[]{0x00, 0x00, 0x00, 0x00});
public static final int TARGET_DOWN = processToInt(new byte[]{0x00, 0x00, 0x00, 0x01});
static HashMap<Integer, ProcessStrategy> processStrategyHashMap = new HashMap<>();
@PostConstruct
public void init() {
processStrategyHashMap.put(TARGET_FIND, SpringUtil.getBean(TargetStorage.class));
processStrategyHashMap.put(TARGET_DOWN, SpringUtil.getBean(TargetDown.class));
}
private static int processToInt(byte[] heads) {
if (heads.length < 4) {
return -1;
}
// 获取前4个byte转为int
return (heads[0] & 0xFF) << 24 | (heads[1] & 0xFF) << 16 | (heads[2] & 0xFF) << 8 | (heads[3] & 0xFF);
}
public static ProcessStrategy getProcessStrategy(byte[] heads) {
return processStrategyHashMap.get(processToInt(heads));
}
public static ProcessStrategy getProcessStrategy(int code) {
return processStrategyHashMap.get(code);
}
}

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Spring/src/main/java/cn/whaifree/springdemo/controller/TS/common/TargetDown.java Normal file
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package cn.whaifree.springdemo.controller.TS.common;
import org.springframework.stereotype.Component;
/**
* @version 1.0
* @Author whai文海
* @Date 2024/11/22 21:22
* @注释
*/
@Component
public class TargetDown implements ProcessStrategy {
@Override
public void process(byte[] frame) {
// 封装成object
process(frame);
}
@Override
public void process(Object o) {
System.out.println("TargetDown");
}
}

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Spring/src/main/java/cn/whaifree/springdemo/controller/TS/common/TargetImage.java Normal file
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package cn.whaifree.springdemo.controller.TS.common;
import org.springframework.stereotype.Component;
import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import java.util.TreeMap;
import java.util.concurrent.ConcurrentHashMap;
/**
* @version 1.0
* @Author whai文海
* @Date 2024/11/22 21:22
* @注释
*/
@Component
public class TargetImage implements ProcessStrategy {
private final Map<Integer, TreeMap<Integer, byte[]>> imageMap = new ConcurrentHashMap<>();
/**
* @param frame
*/
@Override
public void process(byte[] frame) {
try {
// 读取第5-8个字节作为id
int id = getIntByByteArray(frame, 5, 8);
int seq = getIntByByteArray(frame, 9, 12);
int sumGramSize = getIntByByteArray(frame, 13, 16); // 数据报数量
if (!imageMap.containsKey(id)) {
imageMap.put(id, new TreeMap<>());
}
TreeMap<Integer, byte[]> treeMap = imageMap.get(id);
treeMap.put(seq, frame);
if (treeMap.size() == sumGramSize) {
// 满了
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
for (int i = 1; i <= sumGramSize; i++) {
byte[] fragment = treeMap.get(i);
if (fragment != null) {
// 假设图像数据从第17字节开始
outputStream.write(fragment, 17, fragment.length - 17);
}
}
outputStream.write(frame);
// 输入到Minio
// minioClient.putObject("test", "image.jpg", outputStream.toByteArray(), null);
}
} catch (IOException e) {
throw new RuntimeException(e);
}
// 封装成object
process(frame);
}
public int getIntByByteArray(byte[] frame, int left, int right) {
int result = 0;
for (int i = left; i <= right; i++) {
result = result | (frame[i] & 0xFF) << (right - i) * 8;
}
return result;
}
@Override
public void process(Object o) {
System.out.println("图像");
}
}

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Spring/src/main/java/cn/whaifree/springdemo/controller/TS/common/TargetStorage.java Normal file
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package cn.whaifree.springdemo.controller.TS.common;
import org.springframework.stereotype.Component;
/**
* @version 1.0
* @Author whai文海
* @Date 2024/11/22 21:21
* @注释
*/
@Component
public class TargetStorage implements ProcessStrategy {
@Override
public void process(byte[] frame) {
// 封装
process(frame);
}
@Override
public void process(Object o) {
System.out.println("TargetStorage");
}
}

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Spring/src/main/java/cn/whaifree/springdemo/controller/TestController.java Normal file
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package cn.whaifree.springdemo.controller;
import cn.whaifree.springdemo.aspect.annotation.RateLimiter;
import cn.whaifree.springdemo.constant.LimitType;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RestController;
import java.util.List;
import java.util.concurrent.*;
/**
* @version 1.0
* @Author whai文海
* @Date 2024/10/9 17:40
* @注释
*/
@RestController
public class TestController {
@PostMapping("/test")
@RateLimiter(key = "test:", time = 10, count = 1) // 10s只能1次
public String test() {
return "test";
}
/**
*
* BG：重复导入多个容器，有一定几率触发15s响应超时
* 1. 限频率，如果重复导入直接返回已经在导入中
* 2. 控制导入的数量，对导入的数量分片+线程池处理
*
* @return
*/
@PostMapping("addContainer")
@RateLimiter(key = "addContainer:", limitType = LimitType.USER, time = 5, count = 1) // 10s只能1次
@Transactional(rollbackFor = Exception.class)
public String addContainerInstanceToCluster(@RequestBody List<String> instances, int userId) {
// 导入容器节点到集群中
return addToCluster(instances, "clusterId", userId);
}
/**
*
* @param instances 导入实例的ID
* @param userID
* @return
*/
public String addToCluster(List<String> instances,String clusterId, int userID) {
return new MockK8sAPI().loadTo(instances, clusterId).toString();
}
ThreadPoolExecutor executor = (ThreadPoolExecutor) Executors.newFixedThreadPool(10);
class CallableRun implements Callable {
String id;
public CallableRun(String id, CountDownLatch countDownLatch) {
this.id = id;
}
@Override
public Object call(){
return null;
}
}
class MockK8sAPI{
/**
*
* @param instances
* @param clusterId
* @return
*/
public List<String> loadTo(List<String> instances, String clusterId) {
CountDownLatch countDownLatch = new CountDownLatch(instances.size());
for (String instance : instances) {
executor.submit(new Callable<String>() {
@Override
public String call() throws Exception {
try {
System.out.println(instance);
}finally {
countDownLatch.countDown();
}
return instance;
}
});
}
try {
countDownLatch.await(10, TimeUnit.SECONDS);
} catch (InterruptedException e) {
System.out.println("超时");
throw new RuntimeException(e);
}
return instances;
}
}
}

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Spring/src/main/java/cn/whaifree/springdemo/controller/WhiteListController.java Normal file
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package cn.whaifree.springdemo.controller;
import jakarta.annotation.Resource;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RestController;
/**
* @version 1.0
* @Author whai文海
* @Date 2024/10/15 21:29
* @注释
*/
@RestController
public class WhiteListController {
@Resource
private RedisTemplate redisTemplate;
@PostMapping("/queryIn")
public boolean query(String userId) {
return Boolean.TRUE.equals(redisTemplate.opsForSet().isMember("whiteList", userId));
}
}

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Spring/src/main/java/cn/whaifree/springdemo/controller/cacheComparator/CacheComparatorDemo.java Normal file
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package cn.whaifree.springdemo.controller.cacheComparator;
import com.github.benmanes.caffeine.cache.AsyncLoadingCache;
import com.github.benmanes.caffeine.cache.Caffeine;
import com.google.common.cache.CacheBuilder;
import org.checkerframework.checker.nullness.qual.Nullable;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import java.time.Duration;
import java.util.concurrent.ForkJoinPool;
/**
* @version 1.0
* @Author whai文海
* @Date 2024/10/24 22:27
* @注释
*/
@RestController
public class CacheComparatorDemo {
private com.google.common.cache.LoadingCache<Object, Object> guavaCache = CacheBuilder.newBuilder()
.maximumSize(1000)
.expireAfterWrite(Duration.ofDays(1))
.initialCapacity(10)
.build(new com.google.common.cache.CacheLoader<Object, Object>() {
@Override
public Object load(Object key) throws Exception {
return null;
}
});
private com.github.benmanes.caffeine.cache.LoadingCache<Object, Object> caffeineCache = Caffeine.newBuilder()
.maximumSize(1000)
.expireAfterWrite(Duration.ofDays(1))
.build(new com.github.benmanes.caffeine.cache.CacheLoader<Object, Object>() {
@Override
public @Nullable Object load(Object key) throws Exception {
return null;
}
});
@PostMapping("/guavaPut")
public String guava(String key, String value) {
guavaCache.put(key, value);
return "guava put success";
}
@GetMapping("/guavaGet")
public String guavaGet(String key) {
return (String) guavaCache.getIfPresent(key);
}
@PostMapping("/caffeinePut")
public String caffeine(String key, String value) {
caffeineCache.put(key, value);
return "caffeine put success";
}
@GetMapping("/caffeineGet")
public String caffeineGet(String key) {
return (String) caffeineCache.getIfPresent(key);
}
/**
* AsyncLoadingCache是继承自LoadingCache类的，
* 异步加载使用Executor去调用方法并返回一个CompletableFuture，
* 相比于同步填充模式，在load数据时，
* 使用异步线程来执行load方法，
* 默认使用ForkJoinPool.commonPool()来执行异步线程，
* 我们可以通过Caffeine.executor(Executor) 方法来替换线程池。
*/
private AsyncLoadingCache<Object, Object> cache = Caffeine.newBuilder()
.recordStats()
.maximumSize(1000)
.expireAfterWrite(Duration.ofDays(1)) // 缓存有效期1天,write后1天过期
.expireAfterAccess(Duration.ofDays(1)) // 缓存有效期1天,访问后1天过期
.executor(ForkJoinPool.commonPool()) // 默认使用ForkJoinPool.commonPool()来执行异步线程
.buildAsync(
new com.github.benmanes.caffeine.cache.CacheLoader<Object, Object>() {
@Override
public @Nullable Object load(Object key) throws Exception {
return null;
}
}
);
/**
* <a href="https://blog.csdn.net/zhangyunfeihhhh/article/details/108105928">...</a>
*
* guava提供了两种回收策略
* - 但Guava室友在获取值的时候进行回收，如果一直没get，会导致缓存一直在占用内存
* 并不会导致数据直接失效，而是在get时，去load新的值
* - 一旦一个kv写入缓存，设置过期时间无法去除（没有get就不会对其清除，但如果过期了，去load新的值如果不是null，就会一直占用内存）
* - 所以最好设置MaxSize，设置缓存大小，不然可能内存泄露
*
* caffine和guava相同的两种过期策略也是惰性删除（在get时去进行过期判断过期），和guava基本一致
*
*
* caffeine chache通过W-TinyLFU算法进行数据驱逐：
*
Caffeine 使用 W-TinyLFU 作为其默认的频率计数器，以支持高效的缓存淘汰策略。以下是一些关键点：
频率计数器: Caffeine 使用一个小型的高频计数器数组来记录每个键的访问频率。
权重因子: 通过权重因子调整频率计数，使得频繁访问的键更容易保留。
淘汰策略: 当缓存达到容量上限时，根据频率计数和权重因子决定哪些键应该被淘汰。
*
*
* 通过对guava cache 和caffeine 从性能到算法及使用的对比中，可以发现Caffeine基本是在Guava的基础上进行优化而来的，提供的功能基本一致，但是通过对算法和部分逻辑的优化，完成了对性能极大的提升，而且我们可以发现，两者切换几乎没有成本，毕竟caffeine就是以替换guava cache为目的而来的。
*
* @param key
* @return
*/
// @Override
// default CompletableFuture<V> get(K key, Function<? super K, ? extends V> mappingFunction) {
// requireNonNull(mappingFunction);
// return get(key, (k1, executor) -> CompletableFuture.supplyAsync(
// () -> mappingFunction.apply(key), executor));
// }
@RequestMapping("/asyncGet")
public String asyncGet(String key) {
return "";
}
}

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Spring/src/main/java/cn/whaifree/springdemo/controller/idempotence/IdempotenceController.java Normal file
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package cn.whaifree.springdemo.controller.idempotence;
import cn.whaifree.springdemo.utils.ResVo;
import com.alibaba.fastjson.JSON;
import jakarta.annotation.Resource;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.script.DefaultRedisScript;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import java.sql.PreparedStatement;
import java.util.Arrays;
import java.util.List;
import java.util.Map;
import java.util.UUID;
import java.util.concurrent.TimeUnit;
/**
* 幂等性测试
*
* @version 1.0
* @Author whai文海
* @Date 2024/10/11 16:06
* @注释
*/
@RestController
@RequestMapping("/idempotence")
public class IdempotenceController {
@Resource
JdbcTemplate jdbcTemplate;
@Resource
RedisTemplate<String, Object> redisTemplate;
@PostMapping("query")
public ResVo query() {
List<Map<String, Object>> maps = jdbcTemplate.queryForList("select * from orders");
return ResVo.success(JSON.toJSONString(maps));
}
/**
* CREATE TABLE `orders` (
* `id` INT AUTO_INCREMENT PRIMARY KEY,
* `order_no` VARCHAR(100) UNIQUE NOT NULL COMMENT '订单号', -- 唯一
* `user_id` INT NOT NULL COMMENT '用户ID',
* `total_amount` DECIMAL(10,2) NOT NULL COMMENT '订单总金额',
* `status` TINYINT DEFAULT 0 COMMENT '订单状态: 0-未支付, 1-已支付',
* `create_time` TIMESTAMP DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间'
* );
* <p>
* java.sql.SQLIntegrityConstraintViolationException: Duplicate entry '1' for key 'order_no'
* at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:118) ~[mysql-connector-j-8.0.33.jar:8.0.33]
* at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:122) ~[mysql-connector-j-8.0.33.jar:8.0.33]
*
* @param orderId
* @param userId
* @param totalAmount
* @return
*/
@PostMapping("insertByMySQL")
public ResVo insertMySQL(String orderId, String userId, Integer totalAmount) {
int update = jdbcTemplate.update(con -> {
PreparedStatement preparedStatement = con.prepareStatement(
"INSERT INTO orders (order_no, user_id, total_amount) " +
"VALUES (?, ?, ?);"
);
preparedStatement.setString(1, orderId);
preparedStatement.setString(2, userId);
preparedStatement.setString(3, String.valueOf(totalAmount));
return preparedStatement;
});
return update > 0 ? ResVo.success("插入成功") : ResVo.error("插入失败");
}
/**
* 适用于更新操作
*
* @return
*/
@PostMapping("upadteCAS")
public ResVo updateCAS(String orderId, Integer totalAmount, Integer originVersion) {
int update = jdbcTemplate.update(con -> {
PreparedStatement preparedStatement = con.prepareStatement(
"UPDATE orders " +
"SET total_amount = ?, version=version+1 " +
"WHERE order_no = ? AND version = ?");
preparedStatement.setInt(1, totalAmount);
preparedStatement.setString(2, orderId);
preparedStatement.setInt(3, originVersion);
return preparedStatement;
});
return update > 0 ? ResVo.success("更新成功") : ResVo.error("更新失败");
}
final String tokenV = "tokenV";
/**
* Token防刷
*/
@PostMapping("token")
public ResVo generateToken() {
// 生成UUID
String s = UUID.randomUUID().toString();
String key = "token:" + s;
redisTemplate.opsForValue().set(key, tokenV, 60, TimeUnit.SECONDS);
return ResVo.success(key);
}
@PostMapping("tokenCheck")
public ResVo tokenCheck(String key) {
String script =
// 有这个token则通过，并且删除，只能一次性使用
"if redis.call('get',KEYS[1]) == ARGV[1] " + // key argv为参数
"then " +
"return redis.call('del',KEYS[1]) " +
"else " +
"return 0 end";
DefaultRedisScript<Long> tDefaultRedisScript = new DefaultRedisScript<>(script, Long.class);
Long execute = redisTemplate.execute(tDefaultRedisScript, Arrays.asList(key), tokenV);
if (execute == 0) {
throw new RuntimeException("未通过");
}
return ResVo.success("通过");
}
}

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Spring/src/main/java/cn/whaifree/springdemo/controller/interceptRetry/BuinessException.java Normal file
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package cn.whaifree.springdemo.controller.interceptRetry;
import lombok.Getter;
/**
* @version 1.0
* @Author whai文海
* @Date 2024/11/10 15:26
* @注释
*/
public class BuinessException extends RuntimeException {
@Getter
private ErrorType type;
private Integer code;
public BuinessException(ErrorType type, Integer code) {
this.type = type;
this.code = code;
}
}

18
Spring/src/main/java/cn/whaifree/springdemo/controller/interceptRetry/ErrorType.java Normal file
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package cn.whaifree.springdemo.controller.interceptRetry;
/**
* @version 1.0
* @Author whai文海
* @Date 2024/11/10 15:26
* @注释
*/
public enum ErrorType {
RetryType("Retry Too Many", 503);
private String type;
private Integer code;
ErrorType (String type, Integer code) {
this.type = type;
this.code = code;
}
}

24
Spring/src/main/java/cn/whaifree/springdemo/controller/interceptRetry/RetryController.java Normal file
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package cn.whaifree.springdemo.controller.interceptRetry;
import cn.whaifree.springdemo.controller.interceptRetry.aspect.RetryLimit;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RestController;
/**
* @version 1.0
* @Author whai文海
* @Date 2024/11/9 21:56
* @注释
*/
@RestController
public class RetryController {
@PostMapping("/try")
@RetryLimit(limitCount = 3, limitTime = 1, limitKey = "ip", resMsg = "retry请求频繁")
public String tryMethod(int success) {
if (success == 1) {
throw new BuinessException(ErrorType.RetryType, 500);
}
return "tryMethod";
}
}

148
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package cn.whaifree.springdemo.controller.interceptRetry.aspect;
import cn.whaifree.springdemo.controller.interceptRetry.BuinessException;
import cn.whaifree.springdemo.controller.interceptRetry.ErrorType;
import com.github.benmanes.caffeine.cache.Cache;
import com.github.benmanes.caffeine.cache.Caffeine;
import jakarta.annotation.PostConstruct;
import jakarta.annotation.Resource;
import jakarta.servlet.http.HttpServletRequest;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.reflect.MethodSignature;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.Lazy;
import org.springframework.core.annotation.AnnotationUtils;
import org.springframework.core.annotation.Order;
import org.springframework.stereotype.Component;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;
import java.lang.reflect.Method;
import java.time.Duration;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.atomic.AtomicInteger;
/**
极海
* @version 1.0
* @Author whai文海
* @Date 2024/11/9 21:57
* @注释
*/
@Aspect
@Component
@Order(100)
public class RetryAspect {
/**
* 一个Cache只能有一个有效期，
* 所以要根据有效期进行分组
* <p>
* 【exprieTime，【keyOfIp，time】】
* <p>
* <p>
* 对不同时间用不同cache实现
*/
Map<Integer, Cache<String, AtomicInteger>> cacheMap = new HashMap<>();
@Resource
@Lazy
private ApplicationContext applicationContext;
/**
* 初始化方法，用于扫描所有Bean的方法，寻找带有RetryLimit注解的方法
* 并根据注解的限制时间创建相应的缓存对象
*/
@PostConstruct
public void init() {
String[] beanDefinitionNames = applicationContext.getBeanDefinitionNames();
for (String beanDefinitionName : beanDefinitionNames) {
// 这里有疑问，可能拿到RetryAspect走getBean导致循环依赖，RetryAspect循环依赖RetryAspect
if (beanDefinitionName.equalsIgnoreCase(this.getClass().getSimpleName())) {
continue;
}
Object bean = applicationContext.getBean(beanDefinitionName);
Method[] methods = bean.getClass().getDeclaredMethods();
for (Method method : methods) {
try {
// 手动用反射获取不到注解
RetryLimit retryLimit = AnnotationUtils.findAnnotation(method, RetryLimit.class);
// RetryLimit retryLimit = method.getAnnotation(RetryLimit.class);
if (retryLimit == null) {
continue;
}
int expireTime = retryLimit.limitTime();
Cache<String, AtomicInteger> build =
Caffeine.newBuilder()
.expireAfterAccess(Duration.ofMinutes(expireTime))
.maximumSize(1000)
.build();
cacheMap.put(expireTime, build);
} catch (Exception e) {
e.printStackTrace();
}
}
}
System.out.println(cacheMap);
}
/**
* 环绕通知，拦截带有RetryLimit注解的方法
* 检查方法的重试次数是否超过限制，如果超过则抛出异常，否则继续执行方法
*
* @param joinPoint 切入点对象，包含被拦截方法的信息
* @return 被拦截方法的返回值
* @throws Throwable 被拦截方法抛出的异常
*/
@Around("@annotation(cn.whaifree.springdemo.controller.interceptRetry.aspect.RetryLimit)")
public Object around(ProceedingJoinPoint joinPoint) throws Throwable {
// 获取方法签名，设置方法可以访问
MethodSignature signature = (MethodSignature) joinPoint.getSignature();
Method method = signature.getMethod();
method.setAccessible(true);
// 获取注解
RetryLimit retryAn = AnnotationUtils.findAnnotation(method, RetryLimit.class);
if (retryAn == null) {
return joinPoint.proceed();
}
// 如果包含注解，放入缓存，key为ip或者其他限流key，value为次数
Cache<String, AtomicInteger> cache = cacheMap.get(retryAn.limitTime());
String limitKey = retryAn.limitKey();
if (limitKey == null || limitKey.equals("ip")) {
ServletRequestAttributes requestAttributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
HttpServletRequest request = requestAttributes.getRequest();
limitKey = request.getRemoteAddr();
}else if (limitKey.equals("userId")) {
// 其他策略
}
// 如果缓存中没有这个ip访问过，初始化为0
AtomicInteger atomicInteger = cache.get(limitKey, s -> new AtomicInteger(0));
if (atomicInteger.intValue() >= retryAn.limitCount()) {
throw new RuntimeException(retryAn.resMsg());
}
try {
return joinPoint.proceed();
} catch (BuinessException e) {
// 如果不是验证错误，向上抛出
if (!e.getType().equals(ErrorType.RetryType)) {
throw e;
}
// 如果验证错误，对atomic++
atomicInteger.incrementAndGet();
String msg = retryAn.resMsg() + "，重试次数：" + atomicInteger.intValue();
throw new RuntimeException(msg);
}
}
}

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package cn.whaifree.springdemo.controller.interceptRetry.aspect;
import cn.whaifree.springdemo.controller.interceptRetry.ErrorType;
import cn.whaifree.springdemo.utils.ResVo;
import org.springframework.data.redis.connection.ReturnType;
import java.lang.annotation.*;
/**
* @version 1.0
* @Author whai文海
* @Date 2024/11/9 21:57
* @注释
*/
@Target({ElementType.METHOD})
@Retention(RetentionPolicy.RUNTIME)
@Documented
public @interface RetryLimit {
int limitCount() default 3;
int limitTime() default 60;
String limitKey() default "ip";
String resMsg() default "请求过于频繁";
ErrorType errorType() default ErrorType.RetryType;
}

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package cn.whaifree.springdemo.controller.minio;
import cn.hutool.crypto.digest.MD5;
import cn.hutool.http.HttpRequest;
import cn.hutool.http.HttpResponse;
import cn.hutool.http.HttpUtil;
import com.google.common.cache.CacheBuilder;
import com.google.common.cache.CacheLoader;
import com.google.common.cache.LoadingCache;
import io.minio.MinioClient;
import io.minio.ObjectWriteResponse;
import io.minio.PutObjectArgs;
import jakarta.annotation.Resource;
import lombok.Data;
import lombok.Getter;
import lombok.Setter;
import lombok.extern.slf4j.Slf4j;
import okhttp3.Headers;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.condition.ConditionalOnExpression;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Component;
import org.springframework.util.StreamUtils;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RestController;
import java.io.ByteArrayInputStream;
import java.io.InputStream;
import java.net.URI;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.TimeUnit;
/**
* @version 1.0
* @Author whai文海
* @Date 2024/10/16 9:38
* @注释
*/
@RestController
@Slf4j
public class MinioController {
@Resource
private ImageUploader imageUploader;
/**
* 外网图片转存缓存
*/
private LoadingCache<String, String> imgReplaceCache = CacheBuilder.newBuilder().maximumSize(300).expireAfterWrite(5, TimeUnit.MINUTES).build(new CacheLoader<String, String>() {
@Override
public String load(String img) {
try {
InputStream stream = null;
if (img.startsWith("http")) {
// 下载变输入
HttpRequest get = HttpUtil.createGet(img);
get.header("user-agent", "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36");
HttpResponse response = get.execute();
stream = response.bodyStream();
}else {
return "";
}
URI uri = URI.create(img);
String path = uri.getPath();
int index = path.lastIndexOf(".");
String fileType = null;
if (index > 0) {
// 从url中获取文件类型
fileType = path.substring(index + 1);
}
return imageUploader.upload(stream, fileType);
} catch (Exception e) {
log.error("外网图片转存异常! img:{}", img, e);
return "";
}
}
});
@PostMapping("/changeLink")
public String changeLink(String url) throws ExecutionException {
return imgReplaceCache.get(url);
}
}
@Slf4j
@ConditionalOnExpression(value = "#{'minio'.equals(environment.getProperty('image.oss.type'))}")
@Component
class MinioOssWrapper implements ImageUploader, InitializingBean {
private MinioClient minioClient;
@Autowired
@Setter
@Getter
private ImageProperties properties;
@Override
public String upload(InputStream inputStream, String fileType) {
try {
byte[] bytes = StreamUtils.copyToByteArray(inputStream);
// 计算md5作为文件名，避免重复上传
String fileName = MD5.create().digestHex(bytes);
ByteArrayInputStream input = new ByteArrayInputStream(bytes);
fileName = fileName + "." + fileType;
log.info("上传文件名：{}", fileName);
PutObjectArgs args = PutObjectArgs.builder()
.bucket(properties.getOss().getBucket())
.object(fileName)
.stream(input, input.available(), -1)
.contentType(fileType)
.build();
ObjectWriteResponse response = minioClient.putObject(args);
// 获取response状态码
Headers headers = response.headers();
log.info(headers.toString());
StringBuilder sb = new StringBuilder();
sb.append(properties.getOss().getEndpoint()).append("/").append(response.bucket()).append("/").append(response.object());
return sb.toString();
} catch (Exception e) {
log.error(e.getMessage());
return "";
}
}
@Override
public boolean uploadIgnore(String fileUrl) {
return false;
}
@Override
public void afterPropertiesSet() throws Exception {
// 创建OSSClient实例。
log.info("init ossClient");
minioClient = MinioClient.builder()
.credentials(
properties.getOss().getAk(),
properties.getOss().getSk()
)
.endpoint(properties.getOss().getEndpoint())
.build();
}
}
@Setter
@Getter
@Component
@ConfigurationProperties(prefix = "image")
class ImageProperties {
private String absTmpPath; // 存储绝对路径
private String webImgPath; // 存储相对路径
private String tmpUploadPath; // 上传文件的临时存储目录
private String cdnHost; // 访问图片的host
private OssProperties oss;
}
@Data
class OssProperties {
private String prefix; // 上传文件前缀路径
private String type; // oss类型
//下面几个是oss的配置参数
private String endpoint;
private String ak;
private String sk;
private String bucket;
private String host;
}
interface ImageUploader {
String DEFAULT_FILE_TYPE = "txt";
// Set<MediaType> STATIC_IMG_TYPE = new HashSet<>(Arrays.asList(MediaType.ImagePng, MediaType.ImageJpg, MediaType.ImageWebp, MediaType.ImageGif));
/**
* 文件上传
*
* @param input
* @param fileType
* @return
*/
String upload(InputStream input, String fileType);
/**
* 判断外网图片是否依然需要处理
*
* @param fileUrl
* @return true 表示忽略，不需要转存
*/
boolean uploadIgnore(String fileUrl);
}

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package cn.whaifree.springdemo.controller.rabbitMqEvent;
import cn.hutool.extra.spring.SpringUtil;
import cn.whaifree.springdemo.utils.ResVo;
import lombok.Getter;
import lombok.ToString;
import org.springframework.context.ApplicationEvent;
import org.springframework.context.ApplicationListener;
import org.springframework.stereotype.Service;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RestController;
import java.util.HashMap;
import java.util.Map;
/**
* @version 1.0
* @Author whai文海
* @Date 2024/10/15 19:12
* @注释
*/
@RestController
public class EventController {
/**
* 根据不同的青桔
*
* @param msg
* @return
*/
@PostMapping("/sendMsg")
public ResVo sendMsgNotify(NotifyTypeEnum notifyType, String msg) {
// 发送异步消息
SpringUtil.publishEvent(new NotifyMsgEvent<>(this, notifyType, msg));
return ResVo.success();
}
}
@Getter
@ToString
class NotifyMsgEvent<T> extends ApplicationEvent {
private NotifyTypeEnum notifyType;
private T content;
public NotifyMsgEvent(Object source, NotifyTypeEnum notifyType, T content) {
super(source);
this.notifyType = notifyType;
this.content = content;
}
}
@Service
class NotifyMsgListener<T> implements ApplicationListener<NotifyMsgEvent<T>> {
@Override
public void onApplicationEvent(NotifyMsgEvent<T> event) {
System.out.println(event); // 获取到发送的消息,做下一步处理
}
}
@Getter
enum NotifyTypeEnum {
COMMENT(1, "评论"),
REPLY(2, "回复"),
PRAISE(3, "点赞"),
COLLECT(4, "收藏"),
FOLLOW(5, "关注消息"),
SYSTEM(6, "系统消息"),
DELETE_COMMENT(1, "删除评论"),
DELETE_REPLY(2, "删除回复"),
CANCEL_PRAISE(3, "取消点赞"),
CANCEL_COLLECT(4, "取消收藏"),
CANCEL_FOLLOW(5, "取消关注"),
// 注册、登录添加系统相关提示消息
REGISTER(6, "用户注册"),
LOGIN(6, "用户登录"),
;
private int type;
private String msg;
private static Map<Integer, NotifyTypeEnum> mapper;
static {
mapper = new HashMap<>();
for (NotifyTypeEnum type : values()) {
mapper.put(type.type, type);
}
}
NotifyTypeEnum(int type, String msg) {
this.type = type;
this.msg = msg;
}
public static NotifyTypeEnum typeOf(int type) {
return mapper.get(type);
}
public static NotifyTypeEnum typeOf(String type) {
return valueOf(type.toUpperCase().trim());
}
}

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package cn.whaifree.springdemo.controller.rabbitMqEvent;
import cn.hutool.core.date.DateUtil;
import cn.whaifree.springdemo.utils.ResVo;
import com.alibaba.fastjson.JSON;
import com.rabbitmq.client.Channel;
import jakarta.annotation.Resource;
import lombok.Data;
import lombok.experimental.Accessors;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.BooleanUtils;
import org.springframework.amqp.core.*;
import org.springframework.amqp.rabbit.annotation.RabbitListener;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.dao.DataAccessException;
import org.springframework.data.redis.connection.RedisConnection;
import org.springframework.data.redis.core.RedisCallback;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RestController;
import java.io.IOException;
import java.util.Set;
import java.util.function.Function;
import java.util.stream.Collectors;
/**
* @version 1.0
* @Author whai文海
* @Date 2024/10/15 19:20
* @注释
*/
@RestController
@Slf4j
public class RabbitMQController {
@Resource
private RabbitTemplate rabbitTemplate;
@Resource
private RedisTemplate<String, Object> redisTemplate;
@PostMapping("/send")
public String send(NotifyTypeEnum type, String msg) {
rabbitTemplate.convertAndSend(RabbitMQConstants.EXCHANGE, RabbitMQConstants.ROUTER, new NotifyMsgEvent<>(null, type, msg));
return "success";
}
@RabbitListener(queues = RabbitMQConstants.QUEUE)
void synBlogConsumer(Message msg , Channel channel) throws IOException {
try {
log.info("synBlogConsumer 接收到消息：{}", msg.toString());
consumer(msg, "user1"); // 某个用户
channel.basicAck(msg.getMessageProperties().getDeliveryTag(), false);
} catch (Exception e) {
log.error("synBlogConsumer 接收消息失败：{}", e.getMessage());
channel.basicNack(msg.getMessageProperties().getDeliveryTag(), false, true);
}
}
private final String oprKey = "oprLog";
/**
* 消息重复消费？幂等性
* @param message
* @return
*/
public void consumer(Message message,String user) {
// 转为NotifyMsgEvent
NotifyMsgEvent<String> event = JSON.parseObject(message.getBody(), NotifyMsgEvent.class);
// 构造活跃度增加的通知
}
final String todayRankKey = DateUtil.format(DateUtil.date(), "yyyyMMdd");
@PostMapping("/activity")
public ResVo getRank(int k) {
// 获取前k个
Set<String> execute = redisTemplate.execute((RedisCallback<Set<String>>) connection -> {
Set<String> collect = connection.zRange(todayRankKey.getBytes(), 0, k - 1).stream().map(new Function<byte[], String>() {
@Override
public String apply(byte[] bytes) {
return new String(bytes);
}
}).collect(Collectors.toSet());
return collect;
});
return ResVo.success(execute);
}
public void incrDecrByActivity(ActivityScoreBo activityScore,String userId) {
if (userId == null) {
return;
}
String field;
int score = 0;
if (activityScore.getPath() != null) { // 关于页面
field = "path_" + activityScore.getPath();
score = 1;
} else if (activityScore.getArticleId() != null) { // 关于文章
field = activityScore.getArticleId() + "_";
if (activityScore.getPraise() != null) {
field += "praise";
score = BooleanUtils.isTrue(activityScore.getPraise()) ? 2 : -2;
} else if (activityScore.getCollect() != null) {
field += "collect";
score = BooleanUtils.isTrue(activityScore.getCollect()) ? 2 : -2;
} else if (activityScore.getRate() != null) {
// 评论回复
field += "rate";
score = BooleanUtils.isTrue(activityScore.getRate()) ? 3 : -3;
} else if (BooleanUtils.isTrue(activityScore.getPublishArticle())) {
// 发布文章
field += "publish";
score += 10;
}
} else if (activityScore.getFollowedUserId() != null) { // 关于关注
field = activityScore.getFollowedUserId() + "_follow";
score = BooleanUtils.isTrue(activityScore.getFollow()) ? 2 : -2;
} else {
return;
}
// 幂等性
final String userActionKey = "ActivityCore:" + userId + DateUtil.format(DateUtil.date(), ":yyyyMMdd");
// {user:{action1,action2}}
Integer opr = (Integer) redisTemplate.opsForHash().get(userActionKey, field);
if (opr == null) { // 某个用户在之前是否做过field这个操作
// 没有操作过
// 加记录
redisTemplate.opsForHash().put(userActionKey, field, score);
redisTemplate.execute((RedisCallback<Object>) connection -> {
connection.expire(userActionKey.getBytes(), 31 * 24 * 60 * 60); // 保存一个月
return null;
});
// 加分
// 更新当天和当月的活跃度排行榜
final String todayRankKey = DateUtil.format(DateUtil.date(), "yyyyMMdd");
final String monthRankKey = DateUtil.format(DateUtil.date(), "yyyyMM");
Double newAns = redisTemplate.execute(new RedisCallback<Double>() {
@Override
public Double doInRedis(RedisConnection connection) throws DataAccessException {
return connection.zScore(todayRankKey.getBytes(), userId.getBytes());
}
});
Object execute = redisTemplate.execute(new RedisCallback<Object>() {
@Override
public Object doInRedis(RedisConnection connection) throws DataAccessException {
return connection.zScore(monthRankKey.getBytes(), userId.getBytes());
}
});
redisTemplate.execute((RedisCallback<Object>) connection -> {
connection.expire(todayRankKey.getBytes(), 31 * 24 * 60 * 60); // 保存一个月
return null;
});
redisTemplate.execute((RedisCallback<Object>) connection -> {
connection.expire(monthRankKey.getBytes(), 31 * 24 * 60 * 60 * 12); // 保存一年
return null;
});
} else if (opr > 0 && score < 0) {
// 减分
Long delete = redisTemplate.opsForHash().delete(userActionKey, field);
if (delete == 1) {
// 减分成功
// 更新日、月排行榜
final String todayRankKey = DateUtil.format(DateUtil.date(), "yyyyMMdd");
final String monthRankKey = DateUtil.format(DateUtil.date(), "yyyyMM");
redisTemplate.opsForHash().increment(todayRankKey, userId, -score);
redisTemplate.opsForHash().increment(monthRankKey, userId, -score);
}
}
}
@Data
@Accessors(chain = true)
public class ActivityScoreBo {
/**
* 访问页面增加活跃度
*/
private String path;
/**
* 目标文章
*/
private Long articleId;
/**
* 评论增加活跃度
*/
private Boolean rate;
/**
* 点赞增加活跃度
*/
private Boolean praise;
/**
* 收藏增加活跃度
*/
private Boolean collect;
/**
* 发布文章增加活跃度
*/
private Boolean publishArticle;
/**
* 被关注的用户
*/
private Long followedUserId;
/**
* 关注增加活跃度
*/
private Boolean follow;
}
}
@Configuration
class RabbitMQConfig {
@Bean
Queue aqueue() {
return QueueBuilder.durable(RabbitMQConstants.QUEUE)
.ttl(1000).maxLength(5)
.deadLetterExchange(RabbitMQConstants.EXCHANGE).deadLetterRoutingKey(RabbitMQConstants.FAIL_ROUTER)
.build();
}
@Bean
Queue failQueue() {
return QueueBuilder.durable(RabbitMQConstants.FAIL_QUEUE)
.build();
}
@Bean
Exchange commentExchange() {
return ExchangeBuilder.directExchange(RabbitMQConstants.EXCHANGE).durable(true).build();
}
@Bean
Binding commentBinding() {
return BindingBuilder.bind(aqueue()).to(commentExchange()).with(RabbitMQConstants.ROUTER).noargs();
}
}
class RabbitMQConstants{
public static final String QUEUE = "queue";
public static final String FAIL_QUEUE = "fail_queue";
public static final String EXCHANGE = "exchange";
public static final String ROUTER = "router";
public static final String FAIL_ROUTER = "fail_router";
}

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package cn.whaifree.springdemo.controller.redEnvelope;
import jakarta.annotation.Resource;
import org.redisson.api.RBucket;
import org.redisson.api.RLock;
import org.redisson.api.RedissonClient;
import org.springframework.web.bind.annotation.*;
import java.util.HashMap;
import java.util.Map;
/**
* @version 1.0
* @Author whai文海
* @Date 2024/10/12 20:31
* @注释
*/
@RestController
@RequestMapping("/redEnvelope")
public class RedEnvelopeController {
@Resource
private RedissonClient redissonClient;
@GetMapping(value = "/redisson/{key}")
public String redissonTest(@PathVariable("key") String lockKey) {
RLock lock = redissonClient.getLock(lockKey);
try {
lock.lock();
Thread.sleep(10000);
} catch (Exception e) {
} finally {
lock.unlock();
}
return "已解锁";
}
@PostMapping("distribute")
public String rob(Double amount) {
// 构造红包数据
Map<String, Object> redPacket = new HashMap<>();
redPacket.put("amount", amount);
redPacket.put("id", System.currentTimeMillis()); // 使用当前时间戳作为红包 ID
// 存入 Redis 红包列表
RBucket<Object> redPacketList = redissonClient.getBucket("red_packet_list");
redPacketList.set(redPacket);
return "Distributed successfully";
}
@PostMapping("rob")
public String rob(String userId) {
return "";
}
}

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package cn.whaifree.springdemo.controller.workBook;
import cn.hutool.http.server.HttpServerResponse;
import cn.hutool.poi.excel.WorkbookUtil;
import com.google.common.collect.Lists;
import jakarta.servlet.http.HttpServletResponse;
import lombok.Data;
import lombok.Setter;
import org.apache.poi.ss.formula.functions.T;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.xssf.streaming.SXSSFWorkbook;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.springframework.http.MediaType;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import java.io.*;
import java.lang.reflect.Field;
import java.net.URLEncoder;
import java.util.ArrayList;
import java.util.List;
/**
* @version 1.0
* @Author whai文海
* @Date 2024/11/20 16:35
* @注释
*/
@RestController
@RequestMapping("/workBook")
public class WorkBookController {
@GetMapping(value = "/exportUser")
public void export(HttpServletResponse response) throws UnsupportedEncodingException {
// WorkBook
response.setHeader("Content-Disposition", "attachment; filename=" + URLEncoder
.encode("导出成员工时.xlsx", "UTF-8"));
response.setContentType("application/vnd.ms-excel;charset=utf-8");
try (
InputStream inputStream = this.getClass().getClassLoader().getResourceAsStream("template/project_member_workHours.xlsx");
OutputStream out = response.getOutputStream()
) {
Workbook query = query(inputStream);
query.write(out);
out.flush();
} catch (IOException e) {
throw new RuntimeException(e);
}
}
public List<User> getUserList() {
List<User> userList = new ArrayList<>();
for (int i = 0; i < 30; i++) {
User user = new User();
user.setNickName("张三" + i);
user.setDepartment("研发部");
user.setFullName("张三" + i);
userList.add(user);
}
return userList;
}
public Workbook query(InputStream inputStream) {
Workbook workbook = WorkbookUtil.createSXSSFBook(inputStream);
Sheet sheet = workbook.getSheetAt(0); // 获取第一个工作表
List<User> userList = getUserList();
for (int i = 0; i < userList.size(); i++) {
Row row = sheet.createRow(i + 1);
Cell cell = row.createCell(0);
cell.setCellValue(userList.get(i).getNickName());
cell = row.createCell(1);
cell.setCellValue(userList.get(i).getFullName());
cell = row.createCell(2);
cell.setCellValue(userList.get(i).getDepartment());
}
return workbook;
}
@Data
@Setter
static class User {
private String nickName;
private String fullName;
private String department;
}
}

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@ -0,0 +1,154 @@
package cn.whaifree.springdemo.controller.workBook.export;
import cn.hutool.core.util.ReflectUtil;
import cn.hutool.poi.excel.WorkbookUtil;
import cn.whaifree.springdemo.controller.workBook.WorkBookController;
import jakarta.servlet.http.HttpServletResponse;
import lombok.Data;
import lombok.Setter;
import org.apache.poi.ss.formula.functions.T;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.UnsupportedEncodingException;
import java.lang.reflect.Field;
import java.net.URLEncoder;
import java.util.ArrayList;
import java.util.List;
/**
* @version 1.0
* @Author whai文海
* @Date 2024/11/20 16:35
* @注释
*/
@RestController
@RequestMapping("/workBookAuto")
public class ExportAutoController {
@GetMapping(value = "/exportUser1")
public void export1(HttpServletResponse response) {
try (OutputStream out = response.getOutputStream()) {
List<User> userList = getUserList();
Workbook query = WorkBookResponseUtils.getWorkBook(userList, User.class, response, "导出成员工时");
query.write(out);
out.flush();
} catch (IOException e) {
throw new RuntimeException(e);
}
}
@GetMapping(value = "/exportUser")
public void export(HttpServletResponse response) throws UnsupportedEncodingException {
// WorkBook
response.setHeader("Content-Disposition", "attachment; filename=" + URLEncoder
.encode("导出成员工时.xlsx", "UTF-8"));
response.setContentType("application/vnd.ms-excel;charset=utf-8");
try (
InputStream inputStream = this.getClass().getClassLoader().getResourceAsStream("template/project_member_workHours.xlsx");
OutputStream out = response.getOutputStream()
) {
Workbook query = query(inputStream);
query.write(out);
out.flush();
} catch (IOException e) {
throw new RuntimeException(e);
}
}
public Workbook query(InputStream inputStream) {
Workbook workbook = WorkbookUtil.createSXSSFBook(inputStream);
Sheet sheet = workbook.getSheetAt(0); // 获取第一个工作表
List<User> userList = getUserList();
for (int i = 0; i < userList.size(); i++) {
Row row = sheet.createRow(i + 1);
Cell cell = row.createCell(0);
cell.setCellValue(userList.get(i).getNickName());
cell = row.createCell(1);
cell.setCellValue(userList.get(i).getFullName());
cell = row.createCell(2);
cell.setCellValue(userList.get(i).getDepartment());
}
return workbook;
}
public Workbook query2(InputStream inputStream) {
Workbook workbook = WorkbookUtil.createSXSSFBook(inputStream);
Sheet sheet = workbook.getSheetAt(0); // 获取第一个工作表
List<User2> userList = getUser2List();
for (int i = 0; i < userList.size(); i++) {
Row row = sheet.createRow(i + 1);
Cell cell = row.createCell(0);
cell.setCellValue(userList.get(i).getNickName());
cell = row.createCell(1);
cell.setCellValue(userList.get(i).getFullName());
cell = row.createCell(2);
cell.setCellValue(userList.get(i).getDepartment());
}
return workbook;
}
@Data
@Setter
static class User {
private String nickName;
private String fullName;
private String department;
}
@Data
@Setter
static class User2 {
private String nickName;
private String fullName;
private String department;
}
public static List<User> getUserList() {
List<User> userList = new ArrayList<>();
for (int i = 0; i < 30; i++) {
User user = new User();
user.setNickName("张三" + i);
user.setDepartment("研发部");
user.setFullName("张三" + i);
userList.add(user);
}
return userList;
}
public static List<User2> getUser2List() {
List<User2> userList = new ArrayList<>();
for (int i = 0; i < 30; i++) {
User2 user = new User2();
user.setNickName("张三" + i);
user.setDepartment("研发部");
user.setFullName("张三" + i);
userList.add(user);
}
return userList;
}
}

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Spring/src/main/java/cn/whaifree/springdemo/controller/workBook/export/WorkBookResponseUtils.java Normal file
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package cn.whaifree.springdemo.controller.workBook.export;
import cn.hutool.core.util.CharsetUtil;
import cn.hutool.core.util.ReflectUtil;
import jakarta.servlet.http.HttpServletResponse;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import java.io.InputStream;
import java.io.UnsupportedEncodingException;
import java.lang.reflect.Field;
import java.net.URLEncoder;
import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets;
import java.util.List;
import java.util.Optional;
/**
* @version 1.0
* @Author whai文海
* @Date 2024/11/22 16:56
* @注释
*/
public class WorkBookResponseUtils {
public static void setHead(HttpServletResponse response, String fileName) throws UnsupportedEncodingException {
// WorkBook
fileName = Optional.ofNullable(fileName).orElse("workBook.xlsx");
response.setHeader("Content-Disposition", "attachment; filename=" + URLEncoder
.encode(fileName, StandardCharsets.UTF_8));
response.setContentType("application/vnd.ms-excel;charset=utf-8");
}
public static Workbook getWorkBook(List<?> list, Class<?> clazz, HttpServletResponse response, String fileName) {
try {
setHead(response, fileName);
return getWorkBook(list, clazz);
} catch (UnsupportedEncodingException e) {
throw new RuntimeException(e);
}
}
public static Workbook getWorkBook(List<?> list, Class<?> clazz) {
try (InputStream inputStream = ExportAutoController.class.getClassLoader().getResourceAsStream("template/empty.xlsx")) {
Workbook workbook = new XSSFWorkbook(inputStream);
Sheet sheetAt = workbook.getSheetAt(0);
Field[] fields = ReflectUtil.getFields(clazz);
Row row = sheetAt.getRow(0);
if (row == null) {
row = sheetAt.createRow(0);
}
for (int i = 0; i < fields.length; i++) {
Cell cell = row.createCell(i);
cell.setCellValue(fields[i].getName());
}
int length = fields.length; // 列数
for (int i = 0; i < list.size(); i++) {
Object o = list.get(i);
row = sheetAt.createRow(i + 1);
for (int j = 0; j < length; j++) {
Cell cell = row.createCell(j);
Field field = fields[j];
field.setAccessible(true);
try {
Object value = field.get(o); // 获取字段值
if (value != null) {
cell.setCellValue(value.toString()); // 将字段值设置到单元格中
}
} catch (IllegalAccessException e) {
e.printStackTrace();
}
}
}
return workbook;
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
}

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Spring/src/main/java/cn/whaifree/springdemo/controller/wxQrLogin/WxQrLoginController.java Normal file
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package cn.whaifree.springdemo.controller.wxQrLogin;
import cn.hutool.core.util.RandomUtil;
import cn.hutool.jwt.JWT;
import com.fasterxml.jackson.dataformat.xml.annotation.JacksonXmlProperty;
import com.fasterxml.jackson.dataformat.xml.annotation.JacksonXmlRootElement;
import com.google.common.cache.CacheBuilder;
import com.google.common.cache.CacheLoader;
import com.google.common.cache.LoadingCache;
import jakarta.annotation.PostConstruct;
import lombok.Data;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.servlet.mvc.method.annotation.SseEmitter;
import java.io.IOException;
import java.util.Date;
/**
* @version 1.0
* @Author whai文海
* @Date 2024/10/15 17:07
* @注释
*/
@Slf4j
@RestController
@RequestMapping("/wxQrLogin")
public class WxQrLoginController {
/**
* 1. 客户端请求网站，/subscribe，响应SSEEmitter
* 获取客户端deviceId
* 生成验证码numCode
* 存放Cache < deviceId,numCode >
* 存放Cache < numCode, SSEEmitter>
* SSE发送验证码给客户端
*
* 2. 客户端扫描公众号，发送numCode到公众号
* wx会请求/callback接口，带有numCode
* 使用numCode找到deviceId，再找到SSEEmitter，发送生成的最新Token
*
*/
/**
* sse的超时时间，默认15min
*/
private final static Long SSE_EXPIRE_TIME = 15 * 60 * 1000L;
private final RedisTemplate redisTemplate;
/**
* key = 验证码, value = 长连接
*/
private LoadingCache<String, SseEmitter> verifyCodeCache;
/**
* key = 设备 value = 验证码
*/
private LoadingCache<String, String> deviceCodeCache;
public WxQrLoginController(@Qualifier("redisTemplate") RedisTemplate redisTemplate) {
this.redisTemplate = redisTemplate;
}
@PostConstruct
public void init() {
// 验证码，SSE
verifyCodeCache = CacheBuilder.newBuilder().build(new CacheLoader<String, SseEmitter>() {
@Override
public SseEmitter load(String key) throws Exception {
// 如果缓存未命中，则抛出异常，提示缓存未命中
throw new RuntimeException("no val: " + key);
}
});
// 设备，验证码
deviceCodeCache = CacheBuilder.newBuilder().build(new CacheLoader<String, String>() {
@Override
public String load(String key) throws Exception {
// 生成id
int cnt = 0;
while (true) {
String code = "deviceId#" + cnt++; // 可以是其他生成算法
// 如果verifyCodeCache中已经有这个缓存，证明这个Code已经被使用了
if (!verifyCodeCache.asMap().containsKey(code)) {
return code;
}
}
}
});
}
/**
* deviceId code
* code sse
* @return
* @throws IOException
*/
@GetMapping(path = "subscribe", produces = {org.springframework.http.MediaType.TEXT_EVENT_STREAM_VALUE})
public SseEmitter subscribe() throws IOException {
String deviceId = String.valueOf(RandomUtil.randomInt(100)); // 随机生成一个UUID
String realCode = deviceCodeCache.getUnchecked(deviceId) ;
// 生成验证码
// fixme 设置15min的超时时间, 超时时间一旦设置不能修改；因此导致刷新验证码并不会增加连接的有效期
SseEmitter sseEmitter = new SseEmitter(SSE_EXPIRE_TIME);
SseEmitter oldSse = verifyCodeCache.getIfPresent(realCode); // 是否已经存在旧的半长连接
if (oldSse != null) {
oldSse.complete(); // 旧的长连接
}
verifyCodeCache.put(realCode, sseEmitter);
sseEmitter.onTimeout(() -> {
log.info("sse 超时中断 --> {}", realCode);
verifyCodeCache.invalidate(realCode);
sseEmitter.complete();
});
sseEmitter.onError((e) -> {
log.warn("sse error! --> {}", realCode, e);
verifyCodeCache.invalidate(realCode);
sseEmitter.complete();
});
// 若实际的验证码与前端显示的不同，则通知前端更新
sseEmitter.send("initCode!");
sseEmitter.send("init#" + realCode);
return sseEmitter;
}
/**
* fixme: 需要做防刷校验
*
*
* 微信的响应返回
* 本地测试访问:
* curl -X POST 'http://localhost:8080/wx/callback'
* -H 'content-type:application/xml' -d
* '<xml>
* <URL><![CDATA[https://hhui.top]]></URL>
* <ToUserName><![CDATA[一灰灰blog]]></ToUserName>
* <FromUserName><![CDATA[demoUser1234]]></FromUserName>
* <CreateTime>1655700579</CreateTime>
* <MsgType><![CDATA[text]]></MsgType>
* <Content><![CDATA[login]]></Content>
* <MsgId>11111111</MsgId>
* </xml>' -i
*
* @param msg
* @return 返回给微信，微信会给客户端
*/
@PostMapping(path = "callback",
consumes = {"application/xml", "text/xml"},
produces = "application/xml;charset=utf-8")
public BaseWxMsgResVo callBack(@RequestBody WxTxtMsgReqVo msg) throws IOException {
BaseWxMsgResVo res = new BaseWxMsgResVo();
res.setToUserName(msg.getFromUserName());
res.setFromUserName(msg.getToUserName());
res.setCreateTime(System.currentTimeMillis());
String content = msg.getContent();
if ("subscribe".equals(msg.getEvent()) || "scan".equalsIgnoreCase(msg.getEvent())) {
String key = msg.getEventKey();
if (StringUtils.isNotBlank(key) || key.startsWith("qrscene_")) {
// 带参数的二维码，扫描、关注事件拿到之后，直接登录，省却输入验证码这一步
// fixme 带参数二维码需要 微信认证，个人公众号无权限
String code = key.substring("qrscene_".length());
// TODO sessionService.autoRegisterWxUserInfo(msg.getFromUserName());
// 自动注册一个用户，获得用户ID
// 找到对应的SSE，实现登录
SseEmitter sseEmitter = verifyCodeCache.getIfPresent(code);
// 生成Token
String session = genSession(100L);
// 登录成功，写入session
sseEmitter.send(session);
// 设置cookie的路径
sseEmitter.send("login#Session=" + session + ";path=/;"); // session告诉前端，跳转到/根目录
return res;
}
}
return res;
}
public String genSession(Long userId) {
// 1.生成jwt格式的会话，内部持有有效期，用户信息
String session = String.valueOf(userId);
String token = JWT.create()
.setIssuer("issuer")
.setPayload("session", session)
.setExpiresAt(new Date(System.currentTimeMillis() + 2592000000L)).sign();
// 2.使用jwt生成的token时，后端可以不存储这个session信息, 完全依赖jwt的信息
// 但是需要考虑到用户登出，需要主动失效这个token，而jwt本身无状态，所以再这里的redis做一个简单的token -> userId的缓存，用于双重判定
redisTemplate.opsForValue().set("UserId:Session:" + session, token);
return token;
}
@Data
@JacksonXmlRootElement(localName = "xml")
public class WxTxtMsgReqVo {
@JacksonXmlProperty(localName = "ToUserName")
private String toUserName;
@JacksonXmlProperty(localName = "FromUserName")
private String fromUserName;
@JacksonXmlProperty(localName = "CreateTime")
private Long createTime;
@JacksonXmlProperty(localName = "MsgType")
private String msgType;
@JacksonXmlProperty(localName = "Event")
private String event;
@JacksonXmlProperty(localName = "EventKey")
private String eventKey;
@JacksonXmlProperty(localName = "Ticket")
private String ticket;
@JacksonXmlProperty(localName = "Content")
private String content;
@JacksonXmlProperty(localName = "MsgId")
private String msgId;
@JacksonXmlProperty(localName = "MsgDataId")
private String msgDataId;
@JacksonXmlProperty(localName = "Idx")
private String idx;
}
@Data
@JacksonXmlRootElement(localName = "xml")
public class BaseWxMsgResVo {
@JacksonXmlProperty(localName = "ToUserName")
private String toUserName;
@JacksonXmlProperty(localName = "FromUserName")
private String fromUserName;
@JacksonXmlProperty(localName = "CreateTime")
private Long createTime;
@JacksonXmlProperty(localName = "MsgType")
private String msgType;
}
//
// /**
// * 初始化设备id
// *
// * @return
// */
// private String getOrInitDeviceId(HttpServletRequest request, HttpServletResponse response) {
// String deviceId = request.getParameter("deviceId");
// if (StringUtils.isNotBlank(deviceId) && !"null".equalsIgnoreCase(deviceId)) {
// return deviceId;
// }
//
// Cookie device = SessionUtil.findCookieByName(request, LoginOutService.USER_DEVICE_KEY);
// if (device == null) {
// deviceId = UUID.randomUUID().toString();
// if (response != null) {
// response.addCookie(SessionUtil.newCookie(LoginOutService.USER_DEVICE_KEY, deviceId));
// }
// return deviceId;
// }
// return device.getValue();
// }
}

201
Spring/src/main/java/cn/whaifree/springdemo/entity/UserService.java Normal file
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package cn.whaifree.springdemo.entity;
import jakarta.annotation.PostConstruct;
import jakarta.annotation.PreDestroy;
import org.springframework.beans.BeansException;
import org.springframework.beans.factory.*;
import org.springframework.beans.factory.config.BeanPostProcessor;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.annotation.Order;
/**
* @version 1.0
* @Author whai文海
* @Date 2024/10/19 22:12
* @注释
*/
@Configuration
@Order(-1)
class Config {
}
/**
* <h1>Spring Bean生命周期</h1>
* <p>Spring Bean 的生命周期包括创建、初始化、使用、销毁等过程。</p>
* <p>Spring Bean 的生命周期</p>
*
* <li>实例化阶段：Bean 被实例化，Bean 实例化后，Bean 处于未初始化状态。</li>
* <li>初始化阶段：Bean 完成实例化后，Bean 处于初始化状态，Bean 实例变量可以被赋值。</li>
* <ul>
* <li><code>BeanNameAware.setBeanName</code></li>
* <li><code>BeanFactoryAware.setBeanFactory</code></li>
* <li><code>ApplicationContextAware.setApplicationContext</code></li>
* </ul>
* <ul>
* <li><code>@PostConstruct</code></li>
* <li><code>InitializingBean.afterPropertiesSet</code></li>
* <li><code>BeanPostProcessor.postProcessBeforeInitialization</code></li>
* <li>初始化</li>
* <li><code>BeanPostProcessor.postProcessAfterInitialization</code></li>
* </ul>
* <li>使用阶段：Bean 完成初始化后，Bean 处于可使用状态，Bean 可以被使用。</li>
* <li>销毁阶段：Bean 不再被使用时，Bean 处于销毁状态，Bean 实例将被销毁。</li>
*
* <ul>
* <li><code>@PreDestroy</code></li>
* <li><code>DisposableBean.destroy</code></li>
*
*
*
* </ul>
*
*
*
*
*
* <h2>相关Aware注入：让 Bean 能够**感知**到它们所运行的环境或依赖的资源e</h2>
* <h2>为什么要叫Aware</h2>
* Aware是一个接口，
* 指示 Bean 有资格通过 Callback 样式方法由 Spring 容器通知特定框架对象。
* 实际的方法签名由各个子接口确定，但通常应仅包含一个接受单个参数的返回 void 的方法
*/
//@Component
public class UserService implements InitializingBean, DisposableBean, BeanNameAware, BeanFactoryAware, ApplicationContextAware, BeanPostProcessor, AutoCloseable {
/**
* 执行 BeanFactoryAware.setBeanFactory
* 执行 ApplicationContextAware.setApplicationContext
* 执行 @PostConstruct
* UserService afterPropertiesSet
* 执行 BeanPostProcessor.postProcessBeforeInitialization
* 执行 BeanPostProcessor.postProcessAfterInitialization
* 执行 @PreDestroy
* UserService destroy
*
* @param args
*/
public static void main(String[] args) {
AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext("cn.whaifree.springdemo.entity");
UserService userService = context.getBean("userService", UserService.class);
System.out.println(userService);
// 执行 DisposableBean
context.close();
}
private String beanName;
private BeanFactory beanFactory;
private ApplicationContext applicationContext;
@Override
public Object postProcessBeforeInitialization(Object bean, String beanName) throws BeansException {
System.out.println("执行 BeanPostProcessor.postProcessBeforeInitialization");
return BeanPostProcessor.super.postProcessBeforeInitialization(bean, beanName);
}
@Override
public Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException {
System.out.println("执行 BeanPostProcessor.postProcessAfterInitialization");
return BeanPostProcessor.super.postProcessAfterInitialization(bean, beanName);
}
@Override
public void afterPropertiesSet() throws Exception {
System.out.println("UserService afterPropertiesSet");
}
@Override
public void destroy() throws Exception {
System.out.println("UserService destroy");
}
/**
* org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory#invokeAwareMethods(java.lang.String, java.lang.Object)
*
* if (bean instanceof BeanFactoryAware beanFactoryAware) { // 如果实现了BeanFactoryAware接口，就执行setBeanFactory
* beanFactoryAware.setBeanFactory(AbstractAutowireCapableBeanFactory.this);
* }
* @param beanFactory owning BeanFactory (never {@code null}).
* The bean can immediately call methods on the factory.
* @throws BeansException
*/
@Override
public void setBeanFactory(BeanFactory beanFactory) throws BeansException {
this.beanFactory = beanFactory;
System.out.println("执行 BeanFactoryAware.setBeanFactory");
}
@Override
public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
this.applicationContext = applicationContext;
System.out.println("ApplicationContextAware.setApplicationContext(ApplicationContext applicationContext) 可以获取applicantionContext，便于获取context，可以提取变成一个公共的component，每次从这个component获取Bean");
}
@PostConstruct
public void init() {
System.out.println("执行 @PostConstruct");
}
@PreDestroy
public void destroyMethod() {
System.out.println("执行 @PreDestroy");
}
@Override
public void close() throws Exception {
}
@Override
public void setBeanName(String name) {
System.out.println("执行 BeanNameAware.setBeanName");
// 修改原来的BeanName
}
/**
* org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory#invokeAwareMethods(java.lang.String, java.lang.Object)
*
* if (bean instanceof Aware) {
* if (bean instanceof BeanNameAware beanNameAware) {
* beanNameAware.setBeanName(beanName);
* }
* if (bean instanceof BeanClassLoaderAware beanClassLoaderAware) {
* ClassLoader bcl = getBeanClassLoader();
* if (bcl != null) {
* beanClassLoaderAware.setBeanClassLoader(bcl);
* }
* }
* if (bean instanceof BeanFactoryAware beanFactoryAware) {
* beanFactoryAware.setBeanFactory(AbstractAutowireCapableBeanFactory.this);
* } * }
*/
}
/**
* 模拟工具类，其实就是可以随时获取本Context
*/
//@Component
//class SpringContextUtil implements ApplicationContextAware {
// static ApplicationContext applicationContext;
// @Override
// public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
// this.applicationContext = applicationContext;
// }
// public static ApplicationContext getApplicationContext(){
// return applicationContext;
// }
//}

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//package cn.whaifree.springdemo.tech;
//
//import jakarta.annotation.Resource;
//import org.springframework.beans.factory.annotation.Autowired;
//import org.springframework.context.annotation.AnnotationConfigApplicationContext;
//import org.springframework.context.annotation.Lazy;
//import org.springframework.context.annotation.Scope;
//import org.springframework.stereotype.Component;
//
///**
// * @version 1.0
// * @Author whai文海
// * @Date 2024/10/31 13:57
// * @注释
// */
//public class CircleRelation {
//
//
//}
//
//
//// ================================================================
//
//@Component
////@Scope("prototype")
//class A1{
//// @Resource
//// public B1 b1;
//
// public static void main(String[] args) {
// AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext("cn.whaifree.springdemo.tech");
//// A1 bean = context.getBean(A1.class);
//// System.out.println(bean.b1.a1);
//
//// LazyA1 lazyA1 = context.getBean(LazyA1.class);
//// System.out.println(lazyA1.b1);
// }
//}
//
///**
// * BeanCurrentlyInCreationException:
// * Error creating bean with name 'a1':
// * Requested bean is currently in creation: Is there an unresolvable circular reference?
// *
// * A 实例创建后，populateBean 时，会触发 B 的加载。
// * B 实例创建后，populateBean 时，会触发 A 的加载。由于 A 的 scope=prototype，需要的时候都会创建一个全新的 A。
// * 这样，就会进入一个死循环。Spring 肯定是解决不了这种情况下的循环依赖的。所以，提前进行了 check，并抛出了异常。
// *
// * A需要一个新的B，B需要一个新的A，不能用为初始化的A活着B
// */
//@Component
////@Scope("prototype")
//class B1{
// @Resource
// public A1 a1;
//}
//
//
//@Component
//@Scope("prototype")
//class LazyA1{
//
// @Autowired
// @Lazy
// public LazyB1 b1;
//}
///**
// *
// */
//@Component
//@Scope("prototype")
//class LazyB1{
// @Autowired
// public LazyA1 a1;
//}
//// ================================================================
//
//
//@Component
//class ConstructA {
// ConstructB b;
// public ConstructA(@Lazy ConstructB b) {
// this.b = b;
// }
//}
//@Component
//class ConstructB {
// ConstructA a;
// public ConstructB(ConstructA a) {
// this.a = a;
// }
// public static void main(String[] args) {
// /**
// * A 实例在创建时(createBeanInstance)，由于是构造注入，这时会触发 B 的加载。
// * B 实例在创建时(createBeanInstance)，又会触发 A 的加载，此时，A 还没有添加到三级缓存（工厂）中，所以就会创建一个全新的 A。
// * 这样，就会进入一个死循环。Spring 是解决不了这种情况下的循环依赖的。所以，提前进行了 check，并抛出了异常。
// *
// * 解决：@Lazy放在构造器上，这样，A 实例在创建时，不会触发 B 的加载。
// *
// * 构造函数注入要求在创建bean实例时必须提供所有依赖
// *
// */
// AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext("cn.whaifree.springdemo.tech");
// ConstructA bean = context.getBean(ConstructA.class);
// System.out.println(bean.b);
// // Unsatisfied dependency expressed through constructor parameter 0:
// // Error creating bean with name 'constructA': Requested bean is currently in creation: Is there an unresolvable circular reference?
// }
//}
//
//
//
//@Component
//class SetA {
// SetB b;
//
// @Autowired
// public void setB(SetB b) {
// this.b = b;
// }
//}
//@Component
//class SetB {
//
// SetA a;
//
// @Autowired
// public void setA(SetA a) {
// this.a = a;
// }
//
// public static void main(String[] args) {
//
// AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext("cn.whaifree.springdemo.tech");
// SetA bean = context.getBean(SetA.class);
// System.out.println(bean.b);
// }
//}

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package cn.whaifree.springdemo.utils.BroomFilter;
import cn.hutool.extra.spring.SpringUtil;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Component;
/**
* @version 1.0
* @Author whai文海
* @Date 2024/10/30 21:01
* @注释
*/
@Component
public class BroomFilter{
RedisTemplate redisTemplate = SpringUtil.getBean("redisTemplate", RedisTemplate.class);
private int hashCount; // 哈希函数数量
private int size; // 位图大小
private String key; // Redis 中的 Bitmap 键
public BroomFilter() {
this.hashCount = 10;
this.size = 1000000;
this.key = "broomFilter";
}
public boolean contains(Object o) {
// 计算Hashcode
int[] hash = getHash(o);
for (int i : hash) {
// 检查位图中对应位置是否为true
if (!redisTemplate.opsForValue().getBit(key, i)) {
return false;
}
}
return true;
}
public void addToBroom(Object o) {
// 计算Hashcode
int[] hash = getHash(o);
for (int i : hash) {
// 设置位图中对应位置为true
redisTemplate.opsForValue().setBit(key, i, true);
}
}
// 生成哈希值
private int[] getHash(Object value) {
int[] result = new int[hashCount];
for (int i = 0; i < hashCount; i++) {
result[i] = Math.abs(value.hashCode() + i * 123456) % size;
}
return result;
}
}

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package cn.whaifree.springdemo.utils.Filter;
import jakarta.servlet.*;
import jakarta.servlet.annotation.WebFilter;
import org.springframework.stereotype.Component;
import java.io.IOException;
/**
* @version 1.0
* @Author whai文海
* @Date 2024/10/12 22:13
* @注释
*/
@Component
@WebFilter(filterName = "SelfFilter", urlPatterns = "/*")
public class SelfFilter implements Filter {
@Override
public void init(FilterConfig filterConfig) throws ServletException {
Filter.super.init(filterConfig);
}
@Override
public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
// System.out.println("SelfFilter doFilter");
filterChain.doFilter(servletRequest, servletResponse);
// System.out.println("SelfFilter doFilter end");
}
@Override
public void destroy() {
Filter.super.destroy();
}
}

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package cn.whaifree.springdemo.utils;
/**
* @version 1.0
* @Author whai文海
* @Date 2024/10/11 16:30
* @注释
*/
import cn.whaifree.springdemo.utils.constants.HttpStatus;
import java.util.HashMap;
/**
* 操作消息提醒
*
* @author /
*/
public class ResVo extends HashMap<String, Object>
{
private static final long serialVersionUID = 1L;
/** 状态码 */
public static final String CODE_TAG = "code";
/** 返回内容 */
public static final String MSG_TAG = "msg";
/** 数据对象 */
public static final String DATA_TAG = "data";
/**
* 初始化一个新创建的 ResVo 对象，使其表示一个空消息。
*/
public ResVo()
{
}
/**
* 初始化一个新创建的 ResVo 对象
*
* @param code 状态码
* @param msg 返回内容
*/
public ResVo(int code, String msg)
{
super.put(CODE_TAG, code);
super.put(MSG_TAG, msg);
}
public boolean isEmpty(){
return super.get(CODE_TAG).equals(HttpStatus.FOUND);
}
/**
* 初始化一个新创建的 ResVo 对象
*
* @param code 状态码
* @param msg 返回内容
* @param data 数据对象
*/
public ResVo(int code, String msg, Object data)
{
super.put(CODE_TAG, code);
super.put(MSG_TAG, msg);
if (data != null) {
super.put(DATA_TAG, data);
}
}
/**
* 返回成功消息
*
* @return 成功消息
*/
public static ResVo success()
{
return ResVo.success("操作成功");
}
/**
* 返回成功数据
*
* @return 成功消息
*/
public static ResVo success(Object data)
{
return ResVo.success("操作成功", data);
}
/**
* 返回成功消息
*
* @param msg 返回内容
* @return 成功消息
*/
public static ResVo success(String msg)
{
return ResVo.success(msg, null);
}
/**
* 返回成功消息
*
* @param msg 返回内容
* @param data 数据对象
* @return 成功消息
*/
public static ResVo success(String msg, Object data)
{
return new ResVo(HttpStatus.SUCCESS, msg, data);
}
/**
* 返回警告消息
*
* @param msg 返回内容
* @return 警告消息
*/
public static ResVo warn(String msg)
{
return ResVo.warn(msg, null);
}
/**
* 返回警告消息
*
* @param msg 返回内容
* @param data 数据对象
* @return 警告消息
*/
public static ResVo warn(String msg, Object data)
{
return new ResVo(HttpStatus.WARN, msg, data);
}
/**
* 返回错误消息
*
* @return 错误消息
*/
public static ResVo error()
{
return ResVo.error("操作失败");
}
/**
* 返回错误消息
*
* @param msg 返回内容
* @return 错误消息
*/
public static ResVo error(String msg)
{
return ResVo.error(msg, null);
}
/**
* 返回错误消息
*
* @param msg 返回内容
* @param data 数据对象
* @return 错误消息
*/
public static ResVo error(String msg, Object data)
{
return new ResVo(HttpStatus.ERROR, msg, data);
}
/**
* 返回错误消息
*
* @param code 状态码
* @param msg 返回内容
* @return 错误消息
*/
public static ResVo error(int code, String msg)
{
return new ResVo(code, msg, null);
}
/**
* 方便链式调用
*
* @param key 键
* @param value 值
* @return 数据对象
*/
@Override
public ResVo put(String key, Object value)
{
super.put(key, value);
return this;
}
}

95
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package cn.whaifree.springdemo.utils.constants;
/**
* @version 1.0
* @Author whai文海
* @Date 2024/10/11 16:32
* @注释
*/
public class HttpStatus
{
/**
* 操作成功
*/
public static final int SUCCESS = 0;
/**
* 对象创建成功
*/
public static final int CREATED = 201;
/**
* 请求已经被接受
*/
public static final int ACCEPTED = 202;
/**
* 操作已经执行成功，但是没有返回数据
*/
public static final int NO_CONTENT = 204;
/**
* 资源已被移除
*/
public static final int MOVED_PERM = 301;
/**
* 重定向
*/
public static final int SEE_OTHER = 303;
/**
* 资源没有被修改
*/
public static final int NOT_MODIFIED = 304;
/**
* 参数列表错误（缺少，格式不匹配）
*/
public static final int BAD_REQUEST = 400;
/**
* 未授权
*/
public static final int UNAUTHORIZED = 401;
/**
* 访问受限，授权过期
*/
public static final int FORBIDDEN = 403;
/**
* 资源，服务未找到
*/
public static final int FOUND = 40004;
/**
* 不允许的http方法
*/
public static final int BAD_METHOD = 405;
/**
* 资源冲突，或者资源被锁
*/
public static final int CONFLICT = 409;
/**
* 不支持的数据，媒体类型
*/
public static final int UNSUPPORTED_TYPE = 415;
/**
* 系统内部错误
*/
public static final int ERROR = 500;
/**
* 接口未实现
*/
public static final int NOT_IMPLEMENTED = 501;
/**
* 系统警告消息
*/
public static final int WARN = 601;
}

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org.springframework.boot.autoconfigure.EnableAutoConfiguration=\
cn.whaifree.springdemo.config.MyAutoConfiguration;

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my:
condition: true
thread:
name: myThread
coreSize: 12
maxSize: 24
spring:
datasource:
url: jdbc:mysql://192.168.50.248:3306/springTest?useUnicode=true&characterEncoding=utf-8&useSSL=true&serverTimezone=Asia/Shanghai
username: root
password: 123456
driver-class-name: com.mysql.cj.jdbc.Driver
data:
redis:
host: 192.168.50.248
port: 6379
# 选择db1
database: 3
redis:
redisson:
file: classpath:redisson.yaml
rabbitmq:
host: localhost
port: 5672
username: whai
password: whai
publisher-confirm-type: correlated
# 不可达到 返回给生产者
# 当启用publisher-returns时，如果发送者发送的消息无法被消费者确认，消息会返回发送者。否则发送者是不知道的
template:
mandatory: true
publisher-returns: true
listener:
simple:
acknowledge-mode: manual
direct:
acknowledge-mode: manual
mybatis-plus:
configuration:
log-impl: org.apache.ibatis.logging.stdout.StdOutImpl
global-config:
db-config:
logic-delete-field: 1
logic-not-delete-value: 0
mapper-locations: "classpath:/mapper/**.xml"
# springdoc-openapi项目配置
springdoc:
swagger-ui:
path: /swagger-ui.html
tags-sorter: alpha
operations-sorter: alpha
api-docs:
path: /v3/api-docs
group-configs:
- group: 'default'
paths-to-match: '/**'
packages-to-scan: cn.whaifree.springdemo.controller
# knife4j的增强配置，不需要增强可以不配
knife4j:
enable: true
setting:
language: zh_cn
server:
port: 8080
image:
oss:
type: minio
bucket: picgo
ak: wOSfawBbzug2S3qz9u6W
sk: CCxIopdXdBRNPloaFV7l8XplKpVLPzjSnMxlKcru
endpoint: http://42.192.130.83:9000

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local userHashKey = KEYS[1] -- 用户领取记录 Hash 表键
local redPacketListKey = KEYS[2] -- 红包列表键
local userRecordListKey = KEYS[3] -- 用户领取记录列表键
local userId = ARGV[1] -- 用户 ID
-- 检查用户是否已经领取过红包
local exists = redis.call('HEXISTS', userHashKey, userId)
if exists == 1 then
return nil
end
-- 从红包列表中取出一条红包数据
local redPacketData = redis.call('RPOP', redPacketListKey)
if not redPacketData then
return nil
end
-- 解析红包数据
local redPacket = cjson.decode(redPacketData)
-- 存储用户领取记录
redis.call('HSET', userHashKey, userId, redPacketData)
-- 将红包领取信息存入用户领取记录列表
redis.call('LPUSH', userRecordListKey, redPacketData)
return redPacket

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# 单节点配置
singleServerConfig:
# 连接空闲超时，单位：毫秒
idleConnectionTimeout: 10000
# 连接超时，单位：毫秒
connectTimeout: 10000
# 命令等待超时，单位：毫秒
timeout: 3000
# 命令失败重试次数,如果尝试达到 retryAttempts（命令失败重试次数） 仍然不能将命令发送至某个指定的节点时，将抛出错误。
# 如果尝试在此限制之内发送成功，则开始启用 timeout（命令等待超时） 计时。
retryAttempts: 3
# 命令重试发送时间间隔，单位：毫秒
retryInterval: 1500
# 密码
#password: redis.shbeta
# 单个连接最大订阅数量
subscriptionsPerConnection: 5
# 客户端名称
#clientName: axin
# # 节点地址
address: redis://192.168.50.248:6379
# 发布和订阅连接的最小空闲连接数
subscriptionConnectionMinimumIdleSize: 1
# 发布和订阅连接池大小
subscriptionConnectionPoolSize: 50
# 最小空闲连接数
connectionMinimumIdleSize: 32
# 连接池大小
connectionPoolSize: 64
# 数据库编号
database: 6
# DNS监测时间间隔，单位：毫秒
dnsMonitoringInterval: 5000
# 线程池数量,默认值: 当前处理核数量 * 2
#threads: 0
# Netty线程池数量,默认值: 当前处理核数量 * 2
#nettyThreads: 0
# 编码
#codec: !<org.redisson.codec.JsonJacksonCodec> {}
## 传输模式
#transportMode : "NIO"
#

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package cn.whaifree.spring;
import org.junit.jupiter.api.Test;
import org.springframework.boot.test.context.SpringBootTest;
@SpringBootTest
class ApplicationTests {
@Test
void contextLoads() {
}
}

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package cn.whaifree.springdemo.RedisData;
import cn.hutool.extra.spring.SpringUtil;
import cn.whaifree.springdemo.utils.BroomFilter.BroomFilter;
import jakarta.annotation.Resource;
import lombok.extern.slf4j.Slf4j;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.data.geo.*;
import org.springframework.data.redis.connection.BitFieldSubCommands;
import org.springframework.data.redis.connection.RedisGeoCommands;
import org.springframework.data.redis.core.RedisTemplate;
import java.util.List;
/**
* @version 1.0
* @Author whai文海
* @Date 2024/10/14 22:06
* @注释
*/
@SpringBootTest
@Slf4j
public class RedisDataTest {
@Resource
private RedisTemplate<String, Object> redisTemplate;
@Autowired
private SpringUtil springUtil;
@Test
public void testHyperloglog() {
String day1 = "visituser:article1:20211014";
redisTemplate.opsForHyperLogLog().add(day1, "user1");
redisTemplate.opsForHyperLogLog().add(day1, "user2");
redisTemplate.opsForHyperLogLog().add(day1, "user3");
redisTemplate.opsForHyperLogLog().add(day1, "user4");
redisTemplate.opsForHyperLogLog().add(day1, "user5");
// 获取值
long count = redisTemplate.opsForHyperLogLog().size(day1);
log.info("count day1:{}", count);//5 第一天有5个人访问这个文章
String day2 = "visituser:article1:20211015";
redisTemplate.opsForHyperLogLog().add(day2, "user1");
redisTemplate.opsForHyperLogLog().add(day2, "user2");
redisTemplate.opsForHyperLogLog().add(day2, "user3");
redisTemplate.opsForHyperLogLog().add(day2, "user4");
redisTemplate.opsForHyperLogLog().add(day2, "user6");
long count2 = redisTemplate.opsForHyperLogLog().size(day2);
log.info("count day2:{}", count2); //5
Long union = redisTemplate.opsForHyperLogLog().union(day1, day2);
log.info("union:{}", union);// 这个文章两天内的，有6个人访问
}
@Test
public void testBitMap() {
// 定义一个字符串变量key，用于存储Redis中存储位图的键
String key = "bitmap:article1";
// 在Redis位图中，将key对应的值的第1个位设置为true，这里用于记录文章1的阅读状态
redisTemplate.opsForValue().setBit(key, 1, true);
// 同样在Redis位图中，将key对应的值的第2个位设置为true，这里用于记录文章2的阅读状态
redisTemplate.opsForValue().setBit(key, 2, true);
// 检查Redis位图中key对应的值的第1个位是否为true，打印结果
System.out.println(redisTemplate.opsForValue().getBit(key, 1));
// 创建BitFieldSubCommands对象，用于执行更复杂的位图操作
BitFieldSubCommands subCommands = BitFieldSubCommands.create();
// 添加一个指令到subCommands中，获取第11个位（从0开始计数）的64位整型值
subCommands.get(BitFieldSubCommands.BitFieldType.INT_64).valueAt(11);
// 添加一个指令到subCommands中，将第11个位设置为64位整型值1
subCommands.set(BitFieldSubCommands.BitFieldType.INT_64).to(11);
// 执行subCommands中所有位图操作指令
redisTemplate.opsForValue().bitField(key, subCommands);
// 获取Redis位图中key对应的值的第11个位，检查其是否为true
System.out.println(redisTemplate.opsForValue().getBit(key, 11));
}
@Test
public void testGeo() {
String key = "geo:user:location";
redisTemplate.opsForGeo().add(key, new Point(116.407396, 39.904200), "beijin");
redisTemplate.opsForGeo().add(key, new Point(121.473701, 31.230416), "shanghai");
redisTemplate.opsForGeo().add(key, new Point(113.264385, 23.129112), "guangzhou");
Distance distance = redisTemplate.opsForGeo().distance(key, "beijin", "shanghai", RedisGeoCommands.DistanceUnit.KILOMETERS); // 计算两个地点之间的距离
System.out.println("beijin to shanghai distance: " + distance.getValue() + " " + distance.getUnit());
Point point = new Point(116.404, 39.915);
String meMember = "me";
redisTemplate.opsForGeo().add(key, point, meMember); // 增加一个点到地理位置信息中
GeoResults<RedisGeoCommands.GeoLocation<Object>> radius =
redisTemplate.opsForGeo().radius(key, new Circle(point, new Distance(2000, RedisGeoCommands.DistanceUnit.KILOMETERS)), // 圆形区域， 半径为1000米
RedisGeoCommands.GeoRadiusCommandArgs.newGeoRadiusArgs().includeCoordinates().sortAscending());
List<GeoResult<RedisGeoCommands.GeoLocation<Object>>> content = radius.getContent();
for (GeoResult<RedisGeoCommands.GeoLocation<Object>> geoResult : content) {
System.out.println(geoResult.getContent().getName() + " " + geoResult.getContent().getPoint());
// 计算point 到这些位置的距离
Distance dis = redisTemplate.opsForGeo().distance(key, meMember, geoResult.getContent().getName(), RedisGeoCommands.DistanceUnit.KILOMETERS);
System.out.println(dis.getValue() + " " + dis.getUnit());
}
}
@Test
public void testbitMap2() {
BroomFilter broomFilter = new BroomFilter();
broomFilter.addToBroom("obj1");
broomFilter.addToBroom("obj2");
broomFilter.addToBroom("obj3");
broomFilter.addToBroom("obj4");
broomFilter.addToBroom("obj5");
broomFilter.addToBroom("obj6");
broomFilter.addToBroom("obj7");
broomFilter.addToBroom("obj8");
broomFilter.addToBroom("obj9");
broomFilter.addToBroom("obj10");
broomFilter.addToBroom("obj11");
broomFilter.addToBroom("obj12");
broomFilter.addToBroom("obj13");
broomFilter.addToBroom("obj14");
broomFilter.addToBroom("obj15");
System.out.println(broomFilter.contains("obj1"));
System.out.println(broomFilter.contains("obj16"));
}
}

72
Spring/src/test/java/cn/whaifree/springdemo/SpringDemoApplicationTests.java Normal file
View File

@ -0,0 +1,72 @@
package cn.whaifree.springdemo;
import jakarta.annotation.Resource;
import lombok.extern.slf4j.Slf4j;
import org.junit.jupiter.api.Test;
import org.redisson.api.RedissonClient;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.locks.Lock;
@SpringBootTest
@Slf4j
class SpringDemoApplicationTests {
@Resource(name = "whaiThreadPool")
private ThreadPoolExecutor whaiThreadPool;
@Test
void threadPool() {
whaiThreadPool.submit(new Runnable() {
@Override
public void run() {
log.info("hello world");
}
});
}
@Test
void contextLoads() {
}
// 注入 RedissonClient
@Autowired
RedissonClient redissonClient;
// 计数器
private int count;
@Test
public void test() throws InterruptedException {
CountDownLatch countDownLatch = new CountDownLatch(1000);
for (int i = 0; i < 1000; i++) {
new Thread(() -> {
// 每个线程都创建自己的锁对象
// 这是基于 Redis 实现的分布式锁
Lock lock = this.redissonClient.getLock("counterLock");
try {
// 上锁
lock.lock();
// 计数器自增 1
this.count = this.count + 1;
} finally {
// 释放锁
lock.unlock();
}
countDownLatch.countDown();
}).start();
}
countDownLatch.await();
log.info("count = {}", this.count);
}
}

44
Spring/src/test/java/cn/whaifree/springdemo/tech/AbstractClass.java Normal file
View File

@ -0,0 +1,44 @@
package cn.whaifree.springdemo.tech;
/**
* @version 1.0
* @Author whai文海
* @Date 2024/10/20 20:19
* @注释
*/
public class AbstractClass {
void method() {
}
abstract class parents{
public parents(int n) {
System.out.println(inter.name);
System.out.println(1);
}
public void method2() {
}
abstract void method();
}
class SubClass extends parents {
public SubClass() {
// System.out.println(1); 不能写在前面
super(1);
}
@Override
public void method() {
method2();
}
}
}
interface inter{
public static final int name = 0; // public static final 是多余的
}

53
SpringDemo/pom.xml
View File

@ -11,6 +11,7 @@
<groupId>cn.whaifree</groupId> <groupId>cn.whaifree</groupId>
<artifactId>SpringDemo</artifactId> <artifactId>SpringDemo</artifactId>
<version>0.0.1-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
<packaging>pom</packaging>
<name>SpringDemo</name> <name>SpringDemo</name>
<description>SpringDemo</description> <description>SpringDemo</description>
<url/> <url/>
@ -30,6 +31,16 @@
<java.version>17</java.version> <java.version>17</java.version>
</properties> </properties>
<dependencies> <dependencies>
<!-- https://mvnrepository.com/artifact/cn.bugstack.middleware/db-router-spring-boot-starter -->
<dependency>
<groupId>cn.bugstack.middleware</groupId>
<artifactId>db-router-spring-boot-starter</artifactId>
<version>1.0.2</version>
</dependency>
<!--security--> <!--security-->
<dependency> <dependency>
<groupId>org.springframework.boot</groupId> <groupId>org.springframework.boot</groupId>
@ -70,30 +81,33 @@
<groupId>com.github.ben-manes.caffeine</groupId> <groupId>com.github.ben-manes.caffeine</groupId>
<artifactId>caffeine</artifactId> <artifactId>caffeine</artifactId>
</dependency> </dependency>
<!-- https://mvnrepository.com/artifact/com.baomidou/mybatis-plus-boot-starter -->
<dependency>
<groupId>com.baomidou</groupId>
<artifactId>mybatis-plus-spring-boot3-starter</artifactId>
<version>3.5.9</version>
</dependency>
<dependency> <dependency>
<groupId>com.github.xiaoymin</groupId> <groupId>com.github.xiaoymin</groupId>
<artifactId>knife4j-openapi3-jakarta-spring-boot-starter</artifactId> <artifactId>knife4j-openapi3-jakarta-spring-boot-starter</artifactId>
<version>4.4.0</version> <version>4.4.0</version>
</dependency> </dependency>
<!-- &lt;!&ndash; https://mvnrepository.com/artifact/org.redisson/redisson-spring-boot-starter &ndash;&gt;--> <!-- https://mvnrepository.com/artifact/org.redisson/redisson-spring-boot-starter -->
<!-- <dependency>-->
<!-- <groupId>org.redisson</groupId>-->
<!-- <artifactId>redisson-spring-boot-starter</artifactId>-->
<!-- <version>3.23.5</version>-->
<!-- </dependency>-->
<!--redisson-->
<dependency> <dependency>
<groupId>org.redisson</groupId> <groupId>org.redisson</groupId>
<artifactId>redisson</artifactId> <artifactId>redisson-spring-boot-starter</artifactId>
<version>3.16.8</version> <version>3.23.5</version>
</dependency> </dependency>
<dependency>
<groupId>com.baomidou</groupId>
<artifactId>mybatis-plus-spring-boot3-starter</artifactId>
<version>3.5.9</version>
</dependency>
<!-- <dependency>-->
<!-- <groupId>org.redisson</groupId>-->
<!-- <artifactId>redisson</artifactId>-->
<!-- <version>3.16.8</version>-->
<!-- </dependency>-->
<!-- rabbitMQ--> <!-- rabbitMQ-->
<dependency> <dependency>
<groupId>org.springframework.boot</groupId> <groupId>org.springframework.boot</groupId>
@ -125,6 +139,7 @@
<artifactId>fastjson</artifactId> <artifactId>fastjson</artifactId>
<version>2.0.36</version> <version>2.0.36</version>
</dependency> </dependency>
<!--hutool--> <!--hutool-->
<dependency> <dependency>
<groupId>cn.hutool</groupId> <groupId>cn.hutool</groupId>
@ -194,6 +209,14 @@
</excludes> </excludes>
</configuration> </configuration>
</plugin> </plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>17</source>
<target>17</target>
</configuration>
</plugin>
</plugins> </plugins>
</build> </build>

9
SpringDemo/src/main/java/cn/whaifree/springdemo/aspect/RateLimitAspect.java
View File

@ -31,13 +31,11 @@ import java.util.Objects;
public class RateLimitAspect { public class RateLimitAspect {
private static final Logger log = LoggerFactory.getLogger(RateLimitAspect.class); private static final Logger log = LoggerFactory.getLogger(RateLimitAspect.class);
private RedisTemplate<Object, Object> redisTemplate; private RedisTemplate<Object, Object> redisTemplate;
private RedisScript<Long> limitScript; private RedisScript<Long> limitScript;
@Autowired @Autowired
public void setRedisTemplate1(RedisTemplate<Object, Object> redisTemplate) { public void setRedisTemplate(RedisTemplate<Object, Object> redisTemplate) {
this.redisTemplate = redisTemplate; this.redisTemplate = redisTemplate;
} }
@ -48,11 +46,8 @@ public class RateLimitAspect {
/** /**
* key 对应方法，value 已经被访问的次数 * key 对应方法，value 已经被访问的次数
*
* lua的逻辑： * lua的逻辑：
* *
*
*
* @param point * @param point
* @param rateLimiter * @param rateLimiter
* @throws Throwable * @throws Throwable
@ -62,7 +57,6 @@ public class RateLimitAspect {
int time = rateLimiter.time(); // 多长时间 int time = rateLimiter.time(); // 多长时间
int count = rateLimiter.count(); // 允许次数 int count = rateLimiter.count(); // 允许次数
String combineKey = getCombineKey(rateLimiter, point); // 组合key， Class-Method String combineKey = getCombineKey(rateLimiter, point); // 组合key， Class-Method
List<Object> keys = Collections.singletonList(combineKey); List<Object> keys = Collections.singletonList(combineKey);
try { try {
@ -82,6 +76,7 @@ public class RateLimitAspect {
// if (rateLimiter.limitType() == LimitType.IP) { // if (rateLimiter.limitType() == LimitType.IP) {
// stringBuffer.append(IpUtils.getIpAddr(ServletUtils.getRequest())).append("-"); // stringBuffer.append(IpUtils.getIpAddr(ServletUtils.getRequest())).append("-");
// } // }
if (rateLimiter.limitType() == LimitType.USER) { if (rateLimiter.limitType() == LimitType.USER) {
ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes(); ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
String username = attributes.getRequest().getParameter("userId"); String username = attributes.getRequest().getParameter("userId");

1
SpringDemo/src/main/java/cn/whaifree/springdemo/config/MybatisConfig.java
View File

@ -10,6 +10,7 @@ import org.springframework.context.annotation.Configuration;
* @注释 * @注释
*/ */
@Configuration @Configuration
//@MapperScan("cn.whaifree.springdemo.mybatis.mapper")
@MapperScan("cn.whaifree.springdemo.mybatis.mapper") @MapperScan("cn.whaifree.springdemo.mybatis.mapper")
public class MybatisConfig { public class MybatisConfig {

16
SpringDemo/src/main/java/cn/whaifree/springdemo/config/RedissonConfig.java
View File

@ -15,12 +15,12 @@ import org.springframework.context.annotation.Configuration;
@Configuration @Configuration
public class RedissonConfig { public class RedissonConfig {
@Bean // @Bean
public RedissonClient redissonClient() { // public RedissonClient redissonClient() {
Config config = new Config(); // Config config = new Config();
config.useSingleServer().setAddress("redis://127.0.0.1:6379"); // config.useSingleServer().setAddress("redis://127.0.0.1:6379");
config.setThreads(10); // config.setThreads(10);
RedissonClient redissonClient = Redisson.create(config); // RedissonClient redissonClient = Redisson.create(config);
return redissonClient; // return redissonClient;
} // }
} }

2
SpringDemo/src/main/java/cn/whaifree/springdemo/controller/TestController.java
View File

@ -19,7 +19,7 @@ import java.util.concurrent.*;
@RestController @RestController
public class TestController { public class TestController {
@PostMapping("/test") @PostMapping("/test")
@RateLimiter(key = "test:", time = 10, count = 1) // 10s只能1次 @RateLimiter(key = "test:", time = 10, count = 10) // 10s只能1次
public String test() { public String test() {
return "test"; return "test";
} }

34
SpringDemo/src/main/java/cn/whaifree/springdemo/controller/interceptRetry/aspect/RetryAspect.java
View File

@ -1,46 +1,32 @@
package cn.whaifree.springdemo.controller.interceptRetry.aspect; package cn.whaifree.springdemo.controller.interceptRetry.aspect;
import cn.hutool.core.util.ReflectUtil;
import cn.hutool.extra.servlet.ServletUtil;
import cn.hutool.extra.spring.SpringUtil;
import cn.hutool.http.HttpUtil;
import cn.whaifree.springdemo.controller.interceptRetry.BuinessException; import cn.whaifree.springdemo.controller.interceptRetry.BuinessException;
import cn.whaifree.springdemo.controller.interceptRetry.ErrorType; import cn.whaifree.springdemo.controller.interceptRetry.ErrorType;
import com.github.benmanes.caffeine.cache.Cache; import com.github.benmanes.caffeine.cache.Cache;
import com.github.benmanes.caffeine.cache.Caffeine; import com.github.benmanes.caffeine.cache.Caffeine;
import com.google.common.collect.Maps;
import com.mysql.cj.util.LogUtils;
import jakarta.annotation.PostConstruct; import jakarta.annotation.PostConstruct;
import jakarta.annotation.Resource; import jakarta.annotation.Resource;
import jakarta.servlet.http.HttpServletRequest; import jakarta.servlet.http.HttpServletRequest;
import lombok.Getter;
import org.apache.catalina.util.RequestUtil;
import org.aspectj.lang.ProceedingJoinPoint; import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.Signature;
import org.aspectj.lang.annotation.Around; import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect; import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.reflect.MethodSignature; import org.aspectj.lang.reflect.MethodSignature;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.ApplicationContext; import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.Lazy; import org.springframework.context.annotation.Lazy;
import org.springframework.core.annotation.AnnotatedElementUtils;
import org.springframework.core.annotation.AnnotationUtils; import org.springframework.core.annotation.AnnotationUtils;
import org.springframework.core.annotation.Order; import org.springframework.core.annotation.Order;
import org.springframework.stereotype.Component; import org.springframework.stereotype.Component;
import org.springframework.web.bind.ServletRequestUtils;
import org.springframework.web.context.request.RequestContextHolder; import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes; import org.springframework.web.context.request.ServletRequestAttributes;
import org.springframework.web.util.WebUtils;
import java.lang.reflect.Method; import java.lang.reflect.Method;
import java.time.Duration; import java.time.Duration;
import java.util.HashMap; import java.util.HashMap;
import java.util.Map; import java.util.Map;
import java.util.concurrent.atomic.AtomicInteger; import java.util.concurrent.atomic.AtomicInteger;
import java.util.function.Function;
/** /**
极海
* @version 1.0 * @version 1.0
* @Author whai文海 * @Author whai文海
* @Date 2024/11/9 21:57 * @Date 2024/11/9 21:57
@ -66,6 +52,10 @@ public class RetryAspect {
@Lazy @Lazy
private ApplicationContext applicationContext; private ApplicationContext applicationContext;
/**
* 初始化方法，用于扫描所有Bean的方法，寻找带有RetryLimit注解的方法
* 并根据注解的限制时间创建相应的缓存对象
*/
@PostConstruct @PostConstruct
public void init() { public void init() {
String[] beanDefinitionNames = applicationContext.getBeanDefinitionNames(); String[] beanDefinitionNames = applicationContext.getBeanDefinitionNames();
@ -86,7 +76,11 @@ public class RetryAspect {
continue; continue;
} }
int expireTime = retryLimit.limitTime(); int expireTime = retryLimit.limitTime();
Cache<String, AtomicInteger> build = Caffeine.newBuilder().expireAfterAccess(Duration.ofMinutes(expireTime)).maximumSize(1000).build(); Cache<String, AtomicInteger> build =
Caffeine.newBuilder()
.expireAfterAccess(Duration.ofMinutes(expireTime))
.maximumSize(1000)
.build();
cacheMap.put(expireTime, build); cacheMap.put(expireTime, build);
} catch (Exception e) { } catch (Exception e) {
e.printStackTrace(); e.printStackTrace();
@ -99,6 +93,14 @@ public class RetryAspect {
/**
* 环绕通知，拦截带有RetryLimit注解的方法
* 检查方法的重试次数是否超过限制，如果超过则抛出异常，否则继续执行方法
*
* @param joinPoint 切入点对象，包含被拦截方法的信息
* @return 被拦截方法的返回值
* @throws Throwable 被拦截方法抛出的异常
*/
@Around("@annotation(cn.whaifree.springdemo.controller.interceptRetry.aspect.RetryLimit)") @Around("@annotation(cn.whaifree.springdemo.controller.interceptRetry.aspect.RetryLimit)")
public Object around(ProceedingJoinPoint joinPoint) throws Throwable { public Object around(ProceedingJoinPoint joinPoint) throws Throwable {
// 获取方法签名，设置方法可以访问 // 获取方法签名，设置方法可以访问

52
SpringDemo/src/main/java/cn/whaifree/springdemo/mybatis/AmountTypeHandler.java
View File

@ -1,52 +0,0 @@
package cn.whaifree.springdemo.mybatis;
import cn.whaifree.springdemo.mybatis.domain.AmountBig;
import org.apache.ibatis.type.BaseTypeHandler;
import org.apache.ibatis.type.JdbcType;
import java.sql.*;
/**
* @version 1.0
* @Author whai文海
* @Date 2024/11/15 10:52
* @注释
*/
public class AmountTypeHandler extends BaseTypeHandler<AmountBig> {
/**
* 该方法用于将 AmountBig 枚举类型的值设置到 PreparedStatement 中，
* @param ps
* @param i
* @param parameter
* @param jdbcType
* @throws SQLException
*/
@Override
public void setNonNullParameter(PreparedStatement ps, int i, AmountBig parameter, JdbcType jdbcType) throws SQLException {
if (parameter.equals(AmountBig.BIG)) {
ps.setDouble(i, 1000000000D);
}else {
ps.setDouble(i, 0D);
}
}
@Override
public AmountBig getNullableResult(ResultSet rs, String columnName) throws SQLException {
double aDouble = rs.getDouble(columnName);
if (aDouble == 1000000000D) {
return AmountBig.BIG;
}
return AmountBig.SMALL;
}
@Override
public AmountBig getNullableResult(ResultSet rs, int columnIndex) throws SQLException {
return null;
}
@Override
public AmountBig getNullableResult(CallableStatement cs, int columnIndex) throws SQLException {
return null;
}
}

111
SpringDemo/src/main/java/cn/whaifree/springdemo/mybatis/domain/Orders.java
View File

@ -1,111 +0,0 @@
package cn.whaifree.springdemo.mybatis.domain;
import com.baomidou.mybatisplus.annotation.IdType;
import com.baomidou.mybatisplus.annotation.TableField;
import com.baomidou.mybatisplus.annotation.TableId;
import com.baomidou.mybatisplus.annotation.TableName;
import lombok.Data;
import java.io.Serializable;
import java.math.BigDecimal;
import java.util.Date;
/**
*
* @TableName orders
*/
@TableName(value ="orders")
@Data
public class Orders implements Serializable {
/**
*
*/
@TableId(type = IdType.AUTO)
private Integer id;
/**
* 订单号
*/
private String orderNo;
/**
* 用户ID
*/
private Integer userId;
/**
* 订单总金额
*/
private BigDecimal totalAmount;
/**
* 订单状态: 0-未支付, 1-已支付
*/
private Integer status;
/**
* 创建时间
*/
private Date createTime;
/**
*
*/
private Integer version;
@TableField(exist = false)
private static final long serialVersionUID = 1L;
@Override
public boolean equals(Object that) {
if (this == that) {
return true;
}
if (that == null) {
return false;
}
if (getClass() != that.getClass()) {
return false;
}
Orders other = (Orders) that;
return (this.getId() == null ? other.getId() == null : this.getId().equals(other.getId()))
&& (this.getOrderNo() == null ? other.getOrderNo() == null : this.getOrderNo().equals(other.getOrderNo()))
&& (this.getUserId() == null ? other.getUserId() == null : this.getUserId().equals(other.getUserId()))
&& (this.getTotalAmount() == null ? other.getTotalAmount() == null : this.getTotalAmount().equals(other.getTotalAmount()))
&& (this.getStatus() == null ? other.getStatus() == null : this.getStatus().equals(other.getStatus()))
&& (this.getCreateTime() == null ? other.getCreateTime() == null : this.getCreateTime().equals(other.getCreateTime()))
&& (this.getVersion() == null ? other.getVersion() == null : this.getVersion().equals(other.getVersion()));
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((getId() == null) ? 0 : getId().hashCode());
result = prime * result + ((getOrderNo() == null) ? 0 : getOrderNo().hashCode());
result = prime * result + ((getUserId() == null) ? 0 : getUserId().hashCode());
result = prime * result + ((getTotalAmount() == null) ? 0 : getTotalAmount().hashCode());
result = prime * result + ((getStatus() == null) ? 0 : getStatus().hashCode());
result = prime * result + ((getCreateTime() == null) ? 0 : getCreateTime().hashCode());
result = prime * result + ((getVersion() == null) ? 0 : getVersion().hashCode());
return result;
}
@Override
public String toString() {
StringBuilder sb = new StringBuilder();
sb.append(getClass().getSimpleName());
sb.append(" [");
sb.append("Hash = ").append(hashCode());
sb.append(", id=").append(id);
sb.append(", orderNo=").append(orderNo);
sb.append(", userId=").append(userId);
sb.append(", totalAmount=").append(totalAmount);
sb.append(", status=").append(status);
sb.append(", createTime=").append(createTime);
sb.append(", version=").append(version);
sb.append(", serialVersionUID=").append(serialVersionUID);
sb.append("]");
return sb.toString();
}
}

26
SpringDemo/src/main/java/cn/whaifree/springdemo/mybatis/mapper/OrdersMapper.java
View File

@ -1,26 +0,0 @@
package cn.whaifree.springdemo.mybatis.mapper;
import cn.whaifree.springdemo.mybatis.domain.Orders;
import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Select;
import java.util.List;
/**
* @author wenhai
* @description 针对表【orders】的数据库操作Mapper
* @createDate 2024-11-01 12:45:47
* @Entity generator.domain.Orders
*/
@Mapper
public interface OrdersMapper extends BaseMapper<Orders> {
@Select("SELECT * FROM orders")
List<Orders> selectByExample();
}

13
SpringDemo/src/main/java/cn/whaifree/springdemo/mybatis/service/OrdersService.java
View File

@ -1,13 +0,0 @@
package cn.whaifree.springdemo.mybatis.service;
import cn.whaifree.springdemo.mybatis.domain.Orders;
import com.baomidou.mybatisplus.extension.service.IService;
/**
* @author wenhai
* @description 针对表【orders】的数据库操作Service
* @createDate 2024-11-01 12:45:47
*/
public interface OrdersService extends IService<Orders> {
}

22
SpringDemo/src/main/java/cn/whaifree/springdemo/mybatis/service/impl/OrdersServiceImpl.java
View File

@ -1,22 +0,0 @@
package cn.whaifree.springdemo.mybatis.service.impl;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import cn.whaifree.springdemo.mybatis.domain.Orders;
import cn.whaifree.springdemo.mybatis.service.OrdersService;
import cn.whaifree.springdemo.mybatis.mapper.OrdersMapper;
import org.springframework.stereotype.Service;
/**
* @author wenhai
* @description 针对表【orders】的数据库操作Service实现
* @createDate 2024-11-01 12:45:47
*/
@Service
public class OrdersServiceImpl extends ServiceImpl<OrdersMapper, Orders>
implements OrdersService{
}

6
SpringDemo/src/main/resources/application.yaml
View File

@ -6,16 +6,16 @@ my:
coreSize: 12 coreSize: 12
maxSize: 24 maxSize: 24
spring: spring:
datasource: datasource:
url: jdbc:mysql://localhost:3306/springTest?useUnicode=true&characterEncoding=utf-8&useSSL=true&serverTimezone=Asia/Shanghai url: jdbc:mysql://192.168.50.248:3306/springTest?useUnicode=true&characterEncoding=utf-8&useSSL=true&serverTimezone=Asia/Shanghai
username: root username: root
password: 123456 password: 123456
driver-class-name: com.mysql.cj.jdbc.Driver driver-class-name: com.mysql.cj.jdbc.Driver
data: data:
redis: redis:
host: 192.168.50.248
host: localhost
port: 6379 port: 6379
# 选择db1 # 选择db1
database: 3 database: 3

22
SpringDemo/src/main/resources/mapper/OrdersMapper.xml
View File

@ -1,22 +0,0 @@
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper
PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="cn.whaifree.springdemo.mybatis.mapper.OrdersMapper">
<resultMap id="BaseResultMap" type="cn.whaifree.springdemo.mybatis.domain.Orders">
<id property="id" column="id" jdbcType="INTEGER"/>
<result property="orderNo" column="order_no" jdbcType="VARCHAR"/>
<result property="userId" column="user_id" jdbcType="INTEGER"/>
<result property="totalAmount" column="total_amount" jdbcType="DECIMAL"/>
<result property="status" column="status" jdbcType="TINYINT"/>
<result property="createTime" column="create_time" jdbcType="TIMESTAMP"/>
<result property="version" column="version" jdbcType="INTEGER"/>
</resultMap>
<sql id="Base_Column_List">
id,order_no,user_id,
total_amount,status,create_time,
version
</sql>
</mapper>

2
SpringDemo/src/main/resources/redisson.yaml
View File

@ -18,7 +18,7 @@ singleServerConfig:
# 客户端名称 # 客户端名称
#clientName: axin #clientName: axin
# # 节点地址 # # 节点地址
address: redis://127.0.0.1:6379 address: redis://192.168.50.248:6379
# 发布和订阅连接的最小空闲连接数 # 发布和订阅连接的最小空闲连接数
subscriptionConnectionMinimumIdleSize: 1 subscriptionConnectionMinimumIdleSize: 1
# 发布和订阅连接池大小 # 发布和订阅连接池大小

34
SpringDemo/src/test/java/cn/whaifree/springdemo/MybatisTest/MybatisTest.java
View File

@ -1,34 +0,0 @@
package cn.whaifree.springdemo.MybatisTest;
import cn.whaifree.springdemo.mybatis.domain.Orders;
import cn.whaifree.springdemo.mybatis.mapper.OrdersMapper;
import cn.whaifree.springdemo.mybatis.service.OrdersService;
import jakarta.annotation.Resource;
import org.junit.jupiter.api.Test;
import org.springframework.boot.test.context.SpringBootTest;
import java.util.List;
/**
* @version 1.0
* @Author whai文海
* @Date 2024/11/1 12:43
* @注释
*/
@SpringBootTest
public class MybatisTest {
@Resource
private OrdersService ordersService;
@Resource
private OrdersMapper ordersMapper;
@Test
public void test() {
List<Orders> orders = ordersMapper.selectList(null);
System.out.println(orders);
List<Orders> orders1 = ordersMapper.selectByExample();
System.out.println(orders1);
}
}

101
mybatisplus/pom.xml Normal file
View File

@ -0,0 +1,101 @@
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.3.5.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.whai.springcloud.mybatis</groupId>
<artifactId>mybatisplus</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>mybatisplus</name>
<description>mybatisplus</description>
<url/>
<licenses>
<license/>
</licenses>
<developers>
<developer/>
</developers>
<scm>
<connection/>
<developerConnection/>
<tag/>
<url/>
</scm>
<properties>
<java.version>8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>cn.whai.middleware</groupId>
<artifactId>db-router-spring-boot-starter</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
<!--web-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<artifactId>mysql-connector-java</artifactId>
<!--jdbc-->
<groupId>mysql</groupId>
<version>8.0.33</version>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.baomidou</groupId>
<artifactId>mybatis-plus-boot-starter</artifactId>
<version>3.5.1</version>
</dependency>
<!--aspect-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-aop</artifactId>
</dependency>
<!-- https://mvnrepository.com/artifact/cn.bugstack.middleware/db-router-spring-boot-starter -->
<!-- <dependency>-->
<!-- <groupId>cn.bugstack.middleware</groupId>-->
<!-- <artifactId>db-router-spring-boot-starter</artifactId>-->
<!-- <version>1.0.2</version>-->
<!-- </dependency>-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>

15
mybatisplus/src/main/java/com/whai/springcloud/mybatis/mybatisplus/MybatisplusApplication.java Normal file
View File

@ -0,0 +1,15 @@
package com.whai.springcloud.mybatis.mybatisplus;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.EnableAspectJAutoProxy;
@SpringBootApplication
@MapperScan("com.whai.springcloud.mybatis.mybatisplus.mybatis.mapper")
@EnableAspectJAutoProxy(proxyTargetClass = true)
public class MybatisplusApplication {
public static void main(String[] args) {
SpringApplication.run(MybatisplusApplication.class, args);
}
}

52
mybatisplus/src/main/java/com/whai/springcloud/mybatis/mybatisplus/mybatis/AmountTypeHandler.java Normal file
View File

@ -0,0 +1,52 @@
//package com.whai.springcloud.mybatis.mybatisplus.mybatis;
//
//import com.whai.springcloud.mybatis.mybatisplus.mybatis.domain.AmountBig;
//import org.apache.ibatis.type.BaseTypeHandler;
//import org.apache.ibatis.type.JdbcType;
//
//import java.sql.*;
//
///**
// * @version 1.0
// * @Author whai文海
// * @Date 2024/11/15 10:52
// * @注释
// */
//public class AmountTypeHandler extends BaseTypeHandler<AmountBig> {
//
// /**
// * 该方法用于将 AmountBig 枚举类型的值设置到 PreparedStatement 中，
// * @param ps
// * @param i
// * @param parameter
// * @param jdbcType
// * @throws SQLException
// */
// @Override
// public void setNonNullParameter(PreparedStatement ps, int i, AmountBig parameter, JdbcType jdbcType) throws SQLException {
// if (parameter.equals(AmountBig.BIG)) {
// ps.setDouble(i, 1000000000D);
// }else {
// ps.setDouble(i, 0D);
// }
// }
//
// @Override
// public AmountBig getNullableResult(ResultSet rs, String columnName) throws SQLException {
// double aDouble = rs.getDouble(columnName);
// if (aDouble == 1000000000D) {
// return AmountBig.BIG;
// }
// return AmountBig.SMALL;
// }
//
// @Override
// public AmountBig getNullableResult(ResultSet rs, int columnIndex) throws SQLException {
// return null;
// }
//
// @Override
// public AmountBig getNullableResult(CallableStatement cs, int columnIndex) throws SQLException {
// return null;
// }
//}

34
mybatisplus/src/main/java/com/whai/springcloud/mybatis/mybatisplus/mybatis/aspect/RateLimitAspect.java Normal file
View File

@ -0,0 +1,34 @@
package com.whai.springcloud.mybatis.mybatisplus.mybatis.aspect;
import com.whai.springcloud.mybatis.mybatisplus.mybatis.aspect.annotation.RateLimiter;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.Aspect;
import org.springframework.stereotype.Component;
/**
* @version 1.0
* @Author whai文海
* @Date 2024/10/9 17:46
* @注释
*/
@Aspect
@Component
public class RateLimitAspect {
/**
* key 对应方法，value 已经被访问的次数
*
* lua的逻辑：
*
*
*
* @param point
* @param rateLimiter
* @throws Throwable
*/
public void doBefore(JoinPoint point, RateLimiter rateLimiter) throws Throwable {
System.out.println("rateLimitAspect");
}
}

17
mybatisplus/src/main/java/com/whai/springcloud/mybatis/mybatisplus/mybatis/aspect/annotation/RateLimiter.java Normal file
View File

@ -0,0 +1,17 @@
package com.whai.springcloud.mybatis.mybatisplus.mybatis.aspect.annotation;
import java.lang.annotation.*;
/**
* @version 1.0
* @Author whai文海
* @Date 2024/10/9 17:43
* @注释
*/
@Target({ElementType.METHOD, ElementType.TYPE})
@Retention(RetentionPolicy.RUNTIME)
@Documented
public @interface RateLimiter {
}

2
SpringDemo/src/main/java/cn/whaifree/springdemo/mybatis/domain/AmountBig.java → mybatisplus/src/main/java/com/whai/springcloud/mybatis/mybatisplus/mybatis/domain/AmountBig.java
View File

@ -1,4 +1,4 @@
package cn.whaifree.springdemo.mybatis.domain; package com.whai.springcloud.mybatis.mybatisplus.mybatis.domain;
/** /**
* @version 1.0 * @version 1.0

20
mybatisplus/src/main/java/com/whai/springcloud/mybatis/mybatisplus/mybatis/domain/User.java Normal file
View File

@ -0,0 +1,20 @@
package com.whai.springcloud.mybatis.mybatisplus.mybatis.domain;
import com.baomidou.mybatisplus.annotation.TableName;
import lombok.Data;
/**
* @version 1.0
* @Author whai文海
* @Date 2024/11/25 11:22
* @注释
*/
@Data
@TableName("user")
public class User {
private Long id;
private String name;
private Integer age;
private String email;
}

31
mybatisplus/src/main/java/com/whai/springcloud/mybatis/mybatisplus/mybatis/mapper/UserMapper.java Normal file
View File

@ -0,0 +1,31 @@
package com.whai.springcloud.mybatis.mybatisplus.mybatis.mapper;
import cn.whai.middleware.db.router.annotation.DBRouter;
import cn.whai.middleware.db.router.annotation.DBRouterStrategy;
import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.whai.springcloud.mybatis.mybatisplus.mybatis.domain.User;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Select;
import java.util.List;
/**
* @version 1.0
* @Author whai文海
* @Date 2024/11/25 11:22
* @注释
*/
@Mapper
@DBRouterStrategy(splitTable = true)
public interface UserMapper extends BaseMapper<User> {
@Select("select * from user")
@DBRouter(key = "id")
List<User> getlist(User user);
@Select("select * from user")
@DBRouter(key = "id")
List<User> getlist1(long l);
}

73
mybatisplus/src/main/resources/application.yaml Normal file
View File

@ -0,0 +1,73 @@
spring:
datasource:
url: jdbc:mysql://192.168.50.248:3306/springTest?useUnicode=true&characterEncoding=utf-8&useSSL=true&serverTimezone=Asia/Shanghai
username: root
password: 123456
driver-class-name: com.mysql.cj.jdbc.Driver
# dbCount \u5206\u51E0\u4E2A\u5E93\uFF0CtbCount \u5206\u51E0\u4E2A\u8868\uFF0C\u4E24\u4E2A\u6570\u7684\u4E58\u79EF\u4E3A2\u7684\u6B21\u5E42\u3002
# default \u4E3A\u9ED8\u8BA4\u4E0D\u8D70\u5206\u5E93\u5206\u8868\u65F6\u5019\u8DEF\u7531\u5230\u54EA\u4E2A\u5E93\uFF0C\u8FD9\u91CC\u662F\u6211\u4EEC\u9700\u8981\u7684\u914D\u7F6E\u5E93\u3002
# routerKey \u9ED8\u8BA4\u8D70\u7684\u8DEF\u7531 Key\uFF0C\u4E00\u4E2A\u6570\u636E\u8DEF\u7531\uFF0C\u662F\u9700\u8981\u6709\u4E00\u4E2A\u952E\u7684\uFF0C\u8FD9\u91CC\u9009\u62E9\u7684\u662F\u7528\u6237ID\u4F5C\u4E3A\u8DEF\u7531\u8BA1\u7B97\u952E\u3002
# list: db01,db02 \u8868\u793A\u5206\u5E93\u5206\u8868\uFF0C\u8D70\u90A3\u5957\u5E93\u3002
# db0\u3001db1\u3001db2 \u5C31\u662F\u914D\u7F6E\u7684\u6570\u636E\u5E93\u4FE1\u606F\u4E86\u3002\u8FD9\u91CC\u7ED9\u6BCF\u4E2A\u6570\u636E\u5E93\u90FD\u914D\u7F6E\u4E86\u5BF9\u5E94\u7684\u8FDE\u63A5\u6C60\u4FE1\u606F\u3002
# \u591A\u6570\u636E\u6E90\u8DEF\u7531\u914D\u7F6E\uFF0C\u5E93\u6570\u91CF * \u8868\u6570\u91CF \u4E3A2\u7684\u6B21\u5E42\uFF0C\u59822\u5E934\u8868
# mysql 5.x \u914D\u7F6E driver-class-name: com.mysql.jdbc.Driver mysql-connector-java 5.1.34
# mysql 8.x \u914D\u7F6E driver-class-name: com.mysql.cj.jdbc.Driver mysql-connector-java 8.0.22
mini-db-router:
jdbc:
datasource:
dbCount: 2
tbCount: 4
default: db00
routerKey: id # 默认key，如果@RouterK没有就用这个
list: db01,db02
db00:
driver-class-name: com.mysql.cj.jdbc.Driver
url: jdbc:mysql://192.168.50.248:3306/springTest?useUnicode=true&characterEncoding=utf-8&useSSL=true&serverTimezone=Asia/Shanghai
username: root
password: 123456
type-class-name: com.zaxxer.hikari.HikariDataSource
pool:
pool-name: Retail_HikariCP
minimum-idle: 15 #\u6700\u5C0F\u7A7A\u95F2\u8FDE\u63A5\u6570\u91CF
idle-timeout: 180000 #\u7A7A\u95F2\u8FDE\u63A5\u5B58\u6D3B\u6700\u5927\u65F6\u95F4\uFF0C\u9ED8\u8BA4600000\uFF0810\u5206\u949F\uFF09
maximum-pool-size: 25 #\u8FDE\u63A5\u6C60\u6700\u5927\u8FDE\u63A5\u6570\uFF0C\u9ED8\u8BA4\u662F10
auto-commit: true #\u6B64\u5C5E\u6027\u63A7\u5236\u4ECE\u6C60\u8FD4\u56DE\u7684\u8FDE\u63A5\u7684\u9ED8\u8BA4\u81EA\u52A8\u63D0\u4EA4\u884C\u4E3A,\u9ED8\u8BA4\u503C\uFF1Atrue
max-lifetime: 1800000 #\u6B64\u5C5E\u6027\u63A7\u5236\u6C60\u4E2D\u8FDE\u63A5\u7684\u6700\u957F\u751F\u547D\u5468\u671F\uFF0C\u503C0\u8868\u793A\u65E0\u9650\u751F\u547D\u5468\u671F\uFF0C\u9ED8\u8BA41800000\u537330\u5206\u949F
connection-timeout: 30000 #\u6570\u636E\u5E93\u8FDE\u63A5\u8D85\u65F6\u65F6\u95F4,\u9ED8\u8BA430\u79D2\uFF0C\u537330000
connection-test-query: SELECT 1
db01:
driver-class-name: com.mysql.cj.jdbc.Driver
url: jdbc:mysql://192.168.50.248:3306/springTest?useUnicode=true&characterEncoding=utf-8&useSSL=true&serverTimezone=Asia/Shanghai
username: root
password: 123456
type-class-name: com.zaxxer.hikari.HikariDataSource
pool:
pool-name: Retail_HikariCP
minimum-idle: 15 #\u6700\u5C0F\u7A7A\u95F2\u8FDE\u63A5\u6570\u91CF
idle-timeout: 180000 #\u7A7A\u95F2\u8FDE\u63A5\u5B58\u6D3B\u6700\u5927\u65F6\u95F4\uFF0C\u9ED8\u8BA4600000\uFF0810\u5206\u949F\uFF09
maximum-pool-size: 25 #\u8FDE\u63A5\u6C60\u6700\u5927\u8FDE\u63A5\u6570\uFF0C\u9ED8\u8BA4\u662F10
auto-commit: true #\u6B64\u5C5E\u6027\u63A7\u5236\u4ECE\u6C60\u8FD4\u56DE\u7684\u8FDE\u63A5\u7684\u9ED8\u8BA4\u81EA\u52A8\u63D0\u4EA4\u884C\u4E3A,\u9ED8\u8BA4\u503C\uFF1Atrue
max-lifetime: 1800000 #\u6B64\u5C5E\u6027\u63A7\u5236\u6C60\u4E2D\u8FDE\u63A5\u7684\u6700\u957F\u751F\u547D\u5468\u671F\uFF0C\u503C0\u8868\u793A\u65E0\u9650\u751F\u547D\u5468\u671F\uFF0C\u9ED8\u8BA41800000\u537330\u5206\u949F
connection-timeout: 30000 #\u6570\u636E\u5E93\u8FDE\u63A5\u8D85\u65F6\u65F6\u95F4,\u9ED8\u8BA430\u79D2\uFF0C\u537330000
connection-test-query: SELECT 1
db02:
driver-class-name: com.mysql.cj.jdbc.Driver
url: jdbc:mysql://192.168.50.248:3306/springTest?useUnicode=true&characterEncoding=utf-8&useSSL=true&serverTimezone=Asia/Shanghai
username: root
password: 123456
type-class-name: com.zaxxer.hikari.HikariDataSource
pool:
pool-name: Retail_HikariCP
minimum-idle: 15 #\u6700\u5C0F\u7A7A\u95F2\u8FDE\u63A5\u6570\u91CF
idle-timeout: 180000 #\u7A7A\u95F2\u8FDE\u63A5\u5B58\u6D3B\u6700\u5927\u65F6\u95F4\uFF0C\u9ED8\u8BA4600000\uFF0810\u5206\u949F\uFF09
maximum-pool-size: 25 #\u8FDE\u63A5\u6C60\u6700\u5927\u8FDE\u63A5\u6570\uFF0C\u9ED8\u8BA4\u662F10
auto-commit: true #\u6B64\u5C5E\u6027\u63A7\u5236\u4ECE\u6C60\u8FD4\u56DE\u7684\u8FDE\u63A5\u7684\u9ED8\u8BA4\u81EA\u52A8\u63D0\u4EA4\u884C\u4E3A,\u9ED8\u8BA4\u503C\uFF1Atrue
max-lifetime: 1800000 #\u6B64\u5C5E\u6027\u63A7\u5236\u6C60\u4E2D\u8FDE\u63A5\u7684\u6700\u957F\u751F\u547D\u5468\u671F\uFF0C\u503C0\u8868\u793A\u65E0\u9650\u751F\u547D\u5468\u671F\uFF0C\u9ED8\u8BA41800000\u537330\u5206\u949F
connection-timeout: 30000 #\u6570\u636E\u5E93\u8FDE\u63A5\u8D85\u65F6\u65F6\u95F4,\u9ED8\u8BA430\u79D2\uFF0C\u537330000
connection-test-query: SELECT 1

9
mybatisplus/src/main/resources/mapper/OrdersMapper.xml Normal file
View File

@ -0,0 +1,9 @@
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper
PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.whai.springcloud.mybatis.mybatisplus.mybatis.mapper.UserMapper">
</mapper>

48
mybatisplus/src/test/java/com/whai/springcloud/mybatis/mybatisplus/MybatisTest/MybatisTest.java Normal file
View File

@ -0,0 +1,48 @@
package com.whai.springcloud.mybatis.mybatisplus.MybatisTest;
import com.whai.springcloud.mybatis.mybatisplus.mybatis.domain.User;
import com.whai.springcloud.mybatis.mybatisplus.mybatis.mapper.UserMapper;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import java.util.List;
/**
* @version 1.0
* @Author whai文海
* @Date 2024/11/1 12:43
* @注释
*/
@SpringBootTest
public class MybatisTest {
@Autowired
private UserMapper userMapper;
@Test
public void testSelect() {
User user = new User();
user.setId(1L);
userMapper.getlist1(1l).forEach(System.out::println);
System.out.println(("----- selectAll method test ------"));
List<User> userList = userMapper.selectList(null);
userList.forEach(System.out::println);
}
// @Resource
// private OrdersMapper ordersMapper;
// @Test
// public void test() {
//
// List<Orders> orders = ordersMapper.selectList(null);
// System.out.println(orders);
//// List<Orders> orders1 = ordersMapper.selectByExample();
//// System.out.println(orders1);
// }
}

27
mybatisplus/src/test/java/com/whai/springcloud/mybatis/mybatisplus/MybatisplusApplicationTests.java Normal file
View File

@ -0,0 +1,27 @@
package com.whai.springcloud.mybatis.mybatisplus;
import com.whai.springcloud.mybatis.mybatisplus.mybatis.mapper.UserMapper;
import org.junit.jupiter.api.Test;
import org.springframework.boot.test.context.SpringBootTest;
import javax.annotation.Resource;
@SpringBootTest
class MybatisplusApplicationTests {
@Resource
private UserMapper userMapper;
@Test
void contextLoads() {
// userMapper.getlist(1).forEach(
// System.out::println
// );
// List<User> list = userMapper.selectList(null);
// list.forEach(System.out::println);
}
}