@RepeatSubmit spring boot 防止重復提交

服務器端實現方案:同一客戶端在2秒內對同一URL的提交視為重復提交

上代碼吧

pom.xml

<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.example</groupId> <artifactId>springboot-repeat-submit</artifactId> <version>1.0</version> <packaging>jar</packaging> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.0.4.RELEASE</version> <relativePath/> <!-- lookup parent from repository --> </parent> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> <java.version>1.8</java.version> </properties> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-aop</artifactId> </dependency> <dependency> <groupId>com.google.guava</groupId> <artifactId>guava</artifactId> <version>24.0-jre</version> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> </plugins> </build> </project> 

logback.xml

<?xml version="1.0" encoding="UTF-8"?> <configuration> <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender"> <encoder> <pattern>%d[%F:%L][%p]:%m%n</pattern> </encoder> </appender> <root level="info"> <appender-ref ref="STDOUT"/> </root> </configuration> 

Application.java

package com; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; /** * @author www.gaozz.club * @功能描述 防重復提交 * @date 2018-08-26 */ @SpringBootApplication public class Application { public static void main(String[] args) { SpringApplication.run(Application.class, args); } } 

自定義注解NoRepeatSubmit.java

package com.common; import java.lang.annotation.ElementType; import java.lang.annotation.Retention; import java.lang.annotation.RetentionPolicy; import java.lang.annotation.Target; @Target(ElementType.METHOD) // 作用到方法上 @Retention(RetentionPolicy.RUNTIME) // 運行時有效 /** * @功能描述 防止重復提交標記注解 * @author www.gaozz.club * @date 2018-08-26 */ public @interface NoRepeatSubmit { } 

aop解析注解NoRepeatSubmitAop.java

package com.common; import javax.servlet.http.HttpServletRequest; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.aspectj.lang.ProceedingJoinPoint; import org.aspectj.lang.annotation.Around; import org.aspectj.lang.annotation.Aspect; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Component; import org.springframework.web.context.request.RequestContextHolder; import org.springframework.web.context.request.ServletRequestAttributes; import com.google.common.cache.Cache; @Aspect @Component /** * @功能描述 aop解析注解 * @author www.gaozz.club * @date 2018-08-26 */ public class NoRepeatSubmitAop { private Log logger = LogFactory.getLog(getClass()); @Autowired private Cache<String, Integer> cache; @Around("execution(* com.example..*Controller.*(..)) && @annotation(nrs)") public Object arround(ProceedingJoinPoint pjp, NoRepeatSubmit nrs) { try { ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes(); String sessionId = RequestContextHolder.getRequestAttributes().getSessionId(); HttpServletRequest request = attributes.getRequest(); String key = sessionId + "-" + request.getServletPath(); if (cache.getIfPresent(key) == null) {// 如果緩存中有這個url視為重復提交 Object o = pjp.proceed(); cache.put(key, 0); return o; } else { logger.error("重復提交"); return null; } } catch (Throwable e) { e.printStackTrace(); logger.error("驗證重復提交時出現未知異常!"); return "{\"code\":-889,\"message\":\"驗證重復提交時出現未知異常!\"}"; } } } 

緩存類

package com.common; import java.util.concurrent.TimeUnit; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; import com.google.common.cache.Cache; import com.google.common.cache.CacheBuilder; @Configuration /** * @功能描述 內存緩存 * @author www.gaozz.club * @date 2018-08-26 */ public class UrlCache { @Bean public Cache<String, Integer> getCache() { return CacheBuilder.newBuilder().expireAfterWrite(2L, TimeUnit.SECONDS).build();// 緩存有效期為2秒 } } 

測試Controller

package com.example; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; import com.common.NoRepeatSubmit; /** * @功能描述 測試Controller * @author www.gaozz.club * @date 2018-08-26 */ @RestController public class TestController { @RequestMapping("/test") @NoRepeatSubmit public String test() { return ("程序邏輯返回"); } } 

瀏覽器輸入http://localhost:8080/test

然后F5刷新查看效果

 

QQ圖片20180914165017.png

---

以下為新版內容:解決了程序集群部署時請求可能會落到多台機器上的問題,把內存緩存換成了redis

---

application.yml

spring: redis: host: 192.168.1.92 port: 6379 password: 123456 

RedisConfig.java

package com.common; import org.springframework.boot.context.properties.ConfigurationProperties; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; import org.springframework.data.redis.connection.RedisStandaloneConfiguration; import org.springframework.data.redis.connection.jedis.JedisClientConfiguration; import org.springframework.data.redis.connection.jedis.JedisConnectionFactory; import org.springframework.data.redis.core.RedisTemplate; @Configuration public class RedisConfig { @Bean @ConfigurationProperties(prefix = "spring.redis") public JedisConnectionFactory getConnectionFactory() { return new JedisConnectionFactory(new RedisStandaloneConfiguration(), JedisClientConfiguration.builder().build()); } @Bean <K, V> RedisTemplate<K, V> getRedisTemplate() { RedisTemplate<K, V> redisTemplate = new RedisTemplate<K, V>(); redisTemplate.setConnectionFactory(getConnectionFactory()); return redisTemplate; } } 

調整切面類NoRepeatSubmitAop.java

package com.common; import javax.servlet.http.HttpServletRequest; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.aspectj.lang.ProceedingJoinPoint; import org.aspectj.lang.annotation.Around; import org.aspectj.lang.annotation.Aspect; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.data.redis.core.RedisTemplate; import org.springframework.data.redis.core.ValueOperations; import org.springframework.stereotype.Component; import org.springframework.web.context.request.RequestContextHolder; import org.springframework.web.context.request.ServletRequestAttributes; @Aspect @Component /** * @功能描述 aop解析注解 * @author www.gaozz.club * @date 2018-11-02 */ public class NoRepeatSubmitAop { private Log logger = LogFactory.getLog(getClass()); @Autowired private RedisTemplate<String, Integer> template; @Around("execution(* com.example..*Controller.*(..)) && @annotation(nrs)") public Object arround(ProceedingJoinPoint pjp, NoRepeatSubmit nrs) { ValueOperations<String, Integer> opsForValue = template.opsForValue(); try { ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes(); String sessionId = RequestContextHolder.getRequestAttributes().getSessionId(); HttpServletRequest request = attributes.getRequest(); String key = sessionId + "-" + request.getServletPath(); if (opsForValue.get(key) == null) {// 如果緩存中有這個url視為重復提交 Object o = pjp.proceed(); opsForValue.set(key, 0, 2, TimeUnit.SECONDS); return o; } else { logger.error("重復提交"); return null; } } catch (Throwable e) { e.printStackTrace(); logger.error("驗證重復提交時出現未知異常!"); return "{\"code\":-889,\"message\":\"驗證重復提交時出現未知異常!\"}"; } } } 

https://github.com/gzz2017gzz/spring-boot2-example/tree/master/54-spring-boot-repeat-submit-single
另附:

代碼生成器源碼

代碼生成器演示

spring boot 2.x 實例源碼

作者：不知不怪
鏈接：https://www.jianshu.com/p/09c6b05b670a
來源：簡書
著作權歸作者所有。商業轉載請聯系作者獲得授權，非商業轉載請注明出處。