自定义接口防抖/防止重复提交的注解

最新推荐文章于 2025-05-04 12:05:33 发布

原创最新推荐文章于 2025-05-04 12:05:33 发布

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#java #开发语言

1.定义一个切面

@Aspect
@Component
public class NoRepeatSubmitAspect {
}

2.定义切点

@Aspect
@Component
public class NoRepeatSubmitAspect {
    @Resource
    private RedisTemplate<String,Object> redisTemplate;
    @Autowired
    private HttpServletRequest request;
    @Autowired
    private HttpServletResponse response;

    //切点是所有注解的方法
    @Pointcut("@annotation(com.bairh.cs.provider.controller.busi.NoRepeat)")
    public void pointCut(){};

}

3.定义增强

@Aspect
@Component
public class NoRepeatSubmitAspect {
    @Resource
    private RedisTemplate<String,Object> redisTemplate;
    @Autowired
    private HttpServletRequest request;
    @Autowired
    private HttpServletResponse response;

    @Pointcut("@annotation(com.bairh.cs.provider.controller.busi.NoRepeat)")
    public void pointCut(){};

    @Before("pointCut()")
    public void before(JoinPoint joinPoint) throws IOException {
        //获取corTicket
        String corTicket = request.getHeader("Corticket");
        MethodSignature signature =(MethodSignature)joinPoint.getSignature();
        Method method = signature.getMethod();

        //获取方法名
        String methodName = method.getName();
        //获取类名
        Class<?> declaringClass = method.getDeclaringClass();
        String className = declaringClass.getName();
        //获取注解的timeOut值
        NoRepeat annotation = method.getAnnotation(NoRepeat.class);
        long timeOut = annotation.timeOut();
        System.out.println(corTicket+"-"+className+"-"+methodName);

        if (!redisTemplate.hasKey(corTicket + "-" + className + "-" + methodName)){
            redisTemplate.opsForValue().set(corTicket+"-"+className+"-"+methodName,"true",timeOut, TimeUnit.SECONDS);
        }
        else {
            throw  new RuntimeException("不可重复提交");
        }
    }
}

4.定义注解

@Documented
@Target(ElementType.METHOD)
@Retention(RetentionPolicy.RUNTIME)
public @interface NoRepeat {
    long timeOut() default 5L;
}

5.使用注解

    @NoRepeat
    @PostMapping("/save")
    public Object save(){
           ...
    }