spring boot 防止重复提交实现方法详解

2023-08-09 19:40:04 319

本文实例讲述了springboot防止重复提交实现方法。分享给大家供大家参考，具体如下：

服务器端实现方案:同一客户端在2秒内对同一URL的提交视为重复提交

上代码吧

pom.xml



4.0.0
com.example
springboot-repeat-submit
1.0
jar

org.springframework.boot
spring-boot-starter-parent
2.0.4.RELEASE



UTF-8
UTF-8
1.8



org.springframework.boot
spring-boot-starter-web


org.springframework.boot
spring-boot-starter-aop


com.google.guava
guava
24.0-jre





org.springframework.boot
spring-boot-maven-plugin

Application.java

packagecom;
importorg.springframework.boot.SpringApplication;
importorg.springframework.boot.autoconfigure.SpringBootApplication;
/**
*@authorwww.gaozz.club
*@功能描述防重复提交
*@date2018-08-26
*/
@SpringBootApplication
publicclassApplication{
publicstaticvoidmain(String[]args){
SpringApplication.run(Application.class,args);
}
}

自定义注解NoRepeatSubmit.java

packagecom.common;
importjava.lang.annotation.ElementType;
importjava.lang.annotation.Retention;
importjava.lang.annotation.RetentionPolicy;
importjava.lang.annotation.Target;
@Target(ElementType.METHOD)//作用到方法上
@Retention(RetentionPolicy.RUNTIME)//运行时有效
/**
*@功能描述防止重复提交标记注解
*@authorwww.gaozz.club
*@date2018-08-26
*/
public@interfaceNoRepeatSubmit{
}

aop解析注解NoRepeatSubmitAop.java

packagecom.common;
importjavax.servlet.http.HttpServletRequest;
importorg.apache.commons.logging.Log;
importorg.apache.commons.logging.LogFactory;
importorg.aspectj.lang.ProceedingJoinPoint;
importorg.aspectj.lang.annotation.Around;
importorg.aspectj.lang.annotation.Aspect;
importorg.springframework.beans.factory.annotation.Autowired;
importorg.springframework.stereotype.Component;
importorg.springframework.web.context.request.RequestContextHolder;
importorg.springframework.web.context.request.ServletRequestAttributes;
importcom.google.common.cache.Cache;
@Aspect
@Component
/**
*@功能描述aop解析注解
*@authorwww.gaozz.club
*@date2018-08-26
*/
publicclassNoRepeatSubmitAop{
privateLoglogger=LogFactory.getLog(getClass());
@Autowired
privateCachecache;
@Around("execution(*com.example..*Controller.*(..))&&@annotation(nrs)")
publicObjectarround(ProceedingJoinPointpjp,NoRepeatSubmitnrs){
try{
ServletRequestAttributesattributes=(ServletRequestAttributes)RequestContextHolder.getRequestAttributes();
StringsessionId=RequestContextHolder.getRequestAttributes().getSessionId();
HttpServletRequestrequest=attributes.getRequest();
Stringkey=sessionId+"-"+request.getServletPath();
if(cache.getIfPresent(key)==null){//如果缓存中有这个url视为重复提交
Objecto=pjp.proceed();
cache.put(key,0);
returno;
}else{
logger.error("重复提交");
returnnull;
}
}catch(Throwablee){
e.printStackTrace();
logger.error("验证重复提交时出现未知异常!");
return"{\"code\":-889,\"message\":\"验证重复提交时出现未知异常!\"}";
}
}
}

缓存类

packagecom.common;
importjava.util.concurrent.TimeUnit;
importorg.springframework.context.annotation.Bean;
importorg.springframework.context.annotation.Configuration;
importcom.google.common.cache.Cache;
importcom.google.common.cache.CacheBuilder;
@Configuration
/**
*@功能描述内存缓存
*@authorwww.gaozz.club
*@date2018-08-26
*/
publicclassUrlCache{
@Bean
publicCachegetCache(){
returnCacheBuilder.newBuilder().expireAfterWrite(2L,TimeUnit.SECONDS).build();//缓存有效期为2秒
}
}

测试Controller

packagecom.example;
importorg.springframework.web.bind.annotation.RequestMapping;
importorg.springframework.web.bind.annotation.RestController;
importcom.common.NoRepeatSubmit;
/**
*@功能描述测试Controller
*@authorwww.gaozz.club
*@date2018-08-26
*/
@RestController
publicclassTestController{
@RequestMapping("/test")
@NoRepeatSubmit
publicStringtest(){
return("程序逻辑返回");
}
}

浏览器输入http://localhost:8080/test

然后F5刷新查看效果

以下为新版内容:解决了程序集群部署时请求可能会落到多台机器上的问题,把内存缓存换成了redis

application.yml

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

RedisConfig.java

packagecom.common;
importorg.springframework.boot.context.properties.ConfigurationProperties;
importorg.springframework.context.annotation.Bean;
importorg.springframework.context.annotation.Configuration;
importorg.springframework.data.redis.connection.RedisStandaloneConfiguration;
importorg.springframework.data.redis.connection.jedis.JedisClientConfiguration;
importorg.springframework.data.redis.connection.jedis.JedisConnectionFactory;
importorg.springframework.data.redis.core.RedisTemplate;
@Configuration
publicclassRedisConfig{
@Bean
@ConfigurationProperties(prefix="spring.redis")
publicJedisConnectionFactorygetConnectionFactory(){
returnnewJedisConnectionFactory(newRedisStandaloneConfiguration(),JedisClientConfiguration.builder().build());
}
@Bean
RedisTemplategetRedisTemplate(){
RedisTemplateredisTemplate=newRedisTemplate();
redisTemplate.setConnectionFactory(getConnectionFactory());
returnredisTemplate;
}
}

调整切面类NoRepeatSubmitAop.java

packagecom.common;
importjavax.servlet.http.HttpServletRequest;
importorg.apache.commons.logging.Log;
importorg.apache.commons.logging.LogFactory;
importorg.aspectj.lang.ProceedingJoinPoint;
importorg.aspectj.lang.annotation.Around;
importorg.aspectj.lang.annotation.Aspect;
importorg.springframework.beans.factory.annotation.Autowired;
importorg.springframework.data.redis.core.RedisTemplate;
importorg.springframework.data.redis.core.ValueOperations;
importorg.springframework.stereotype.Component;
importorg.springframework.web.context.request.RequestContextHolder;
importorg.springframework.web.context.request.ServletRequestAttributes;
@Aspect
@Component
/**
*@功能描述aop解析注解
*@authorwww.gaozz.club
*@date2018-11-02
*/
publicclassNoRepeatSubmitAop{
privateLoglogger=LogFactory.getLog(getClass());
@Autowired
privateRedisTemplatetemplate;
@Around("execution(*com.example..*Controller.*(..))&&@annotation(nrs)")
publicObjectarround(ProceedingJoinPointpjp,NoRepeatSubmitnrs){
ValueOperationsopsForValue=template.opsForValue();
try{
ServletRequestAttributesattributes=(ServletRequestAttributes)RequestContextHolder.getRequestAttributes();
StringsessionId=RequestContextHolder.getRequestAttributes().getSessionId();
HttpServletRequestrequest=attributes.getRequest();
Stringkey=sessionId+"-"+request.getServletPath();
if(opsForValue.get(key)==null){//如果缓存中有这个url视为重复提交
Objecto=pjp.proceed();
opsForValue.set(key,0,2,TimeUnit.SECONDS);
returno;
}else{
logger.error("重复提交");
returnnull;
}
}catch(Throwablee){
e.printStackTrace();
logger.error("验证重复提交时出现未知异常!");
return"{\"code\":-889,\"message\":\"验证重复提交时出现未知异常!\"}";
}
}
}

附：GitHub源码地址：https://github.com/gzz2017gzz/spring-boot2-example/tree/master/54-spring-boot-repeat-submit-single

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spring boot 防止重复提交实现方法详解

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