AOP注解检测接口响应时间

Love The Way You Lie 2021-11-19 13:30 367阅读 0赞

首先自定义注解：@Time

@Target(ElementType.METHOD)
    @Retention(RetentionPolicy.RUNTIME)
    public @interface Time {
        String value();
    }

设置通知（advice）

@Aspect
    @Order(1)
    @Component
    @Lazy(false)
    public class TimeAspect {
    
        private Logger logger = LoggerFactory.getLogger(getClass());
    
        @Pointcut("@annotation(com.example.demo.aspect.annotation.Time)")
        public void timePointCut() {}
    
        @Around("timePointCut()")
        public Object around(ProceedingJoinPoint point) throws Throwable {
            Method method = ((MethodSignature) point.getSignature()).getMethod();
            Time time = method.getAnnotation(Time.class);
            long beginTime = System.currentTimeMillis();
            Object object = point.proceed();
            logger.error(time.value() + "_TotalTime: " + (System.currentTimeMillis() - beginTime));
            return object;
        }
    }

在切点插入注解：

@Time("/user/list")
        @RequestMapping(value = "/list" ,method = RequestMethod.GET)
        public List<UserInfo> getUserList(){
            logger.info("user list method ---> start ");
            return userInfoServiceImpl.userInfoList();
        }

原理：   aop + 反射

[https://www.cnblogs.com/qiumingcheng/p/5923928.html][https_www.cnblogs.com_qiumingcheng_p_5923928.html]

[https://www.cnblogs.com/television/p/8724507.html][https_www.cnblogs.com_television_p_8724507.html]

大家自己搞一个注解，验证用户登录态，玩一下。

[https_www.cnblogs.com_qiumingcheng_p_5923928.html]: https://www.cnblogs.com/qiumingcheng/p/5923928.html
[https_www.cnblogs.com_television_p_8724507.html]: https://www.cnblogs.com/television/p/8724507.html