1.功能点：使用aop拦截含有自定义注解的类

1.自定义注解

package com.zhuanche.common.dingdingsync;

import java.lang.annotation.*;

/**
 * @Author fanht
 * @Description 含有该注解的controller方法存储到mq
 * @Date 2019/2/28 上午11:26
 * @Version 1.0
 */
@Retention(RetentionPolicy.RUNTIME)
@Target({ElementType.METHOD,ElementType.TYPE})
@Documented
public @interface DingdingAnno {
}

2.使用切面

package com.zhuanche.common.dingdingsync;

import org.aspectj.lang.JoinPoint;import org.aspectj.lang.Signature;import org.aspectj.lang.annotation.*;import org.aspectj.lang.reflect.MethodSignature;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import org.springframework.stereotype.Component;

import java.lang.reflect.Method;import java.util.Arrays;

/** * @Author fanht * @Description * @Date 2019/2/28 上午11:59 * @Version 1.0 */@Component@Aspectpublic class DingdingAspect {

    private Logger logger = LoggerFactory.getLogger(this.getClass());

    @Pointcut("execution(* com.zhuanche.controller.driverteam.DriverTeamController.*(..))")    public void pointCut(){        logger.info("含有自定义注解dingdingAnno的方法...");    }

    @Before("pointCut()  && @annotation(dingdingAnno) ")    public void dingdingVerify(JoinPoint joinPoint,DingdingAnno dingdingAnno){        System.out.println("&&&&&&&&&&&&&&&&&&&&");        logger.info(joinPoint.getSignature().getName() + ",入参:{" + Arrays.asList(joinPoint.getArgs() + "}"));    }

    @AfterReturning("pointCut() && @annotation(dingdingAnno)")    public void finish(JoinPoint jointPoint,DingdingAnno dingdingAnno){        logger.info(jointPoint.getSignature().getName() + "*********");        Signature signature = jointPoint.getSignature();        MethodSignature methodSignature = (MethodSignature) signature;        Method method = methodSignature.getMethod();        if (method != null){           dingdingAnno = method.getAnnotation(DingdingAnno.class);           if (dingdingAnno != null){               System.out.println(jointPoint.getTarget().getClass().getName());               System.out.println(jointPoint.getSignature().getName());               System.out.println(jointPoint.getArgs().length);           }        }

        System.out.println(jointPoint.getSignature().getName());    }}

3.配置aop

<context:component-scan base-package="com.zhuanche.**"/><!--开启aop注解 --><aop:aspectj-autoproxy proxy-target-class="true"></aop:aspectj-autoproxy>

4.在类上面添加特定注解

@ResponseBody@RequestMapping(value = "/driverTeamDetail")@DingdingAnnopublic AjaxResponse driverTeamDetail(DriverTeamRequest param){   logger.info("查询车队详情入参:"+ JSON.toJSONString(param));   CarDriverTeamDTO detail = carDriverTeamService.selectOneDriverTeam(param);   return AjaxResponse.success(detail);}

启动项目，遇到的几个问题：1.使用Jrebel 每次修改后，总是不成功，报各种异常。原因应该是 aop在spring启动时候就加载进去了，修改后需要重启；2.遇到的几个问题：1）启动报错

原因一般是point后面的地址错误，我的原因是后面多加了&& +自定义注解名称

2）没进入后置通知： 第一次的时候，写的是

@AfterReturning("within(com.zhuanche.controller..*) && @annotation(sdol)")没有成功，具体原因还不太清楚。

原文地址：https://www.cnblogs.com/thinkingandworkinghard/p/10453662.html