package com.dascom.hawk.app.web.tool;

import org.aspectj.lang.JoinPoint;

import org.aspectj.lang.ProceedingJoinPoint;

import org.aspectj.lang.annotation.After;

import org.aspectj.lang.annotation.Around;

import org.aspectj.lang.annotation.Aspect;

import org.aspectj.lang.annotation.Before;

import org.aspectj.lang.annotation.Pointcut;

import org.springframework.stereotype.Component;

@Aspect

@Component

public class AnnotationAspectJ {

    //定义切面（"execution(* com.dascom.common.aop.*.*(..))）

    //当前配置的意思是所有添加了SuiteMessage的注解的方法作为切点

    @Pointcut("@annotation(com.dascom.common.annotation.SuiteMessage)")

    public void logPointCut() {

    }

    //前置通知

    @Before("logPointCut()")

    public void before(JoinPoint point) {

        String calssName = point.getTarget().getClass().getName();

        String method = point.getSignature().getName();

        System.out.println(calssName + " : " + method);

    }

    //后置通知

    @After("logPointCut()")

    public void after(JoinPoint point) {

        String method = point.getSignature().getName();

        System.out.println(method + ": end----");

    }

    //环绕通知

    @Around("logPointCut()")

    public Object around(ProceedingJoinPoint point) throws Throwable {

        long beginTime = System.currentTimeMillis();

        // 执行方法

        Object result = point.proceed();

        // 执行时长(毫秒)

        long time = System.currentTimeMillis() - beginTime;

        //异步保存日志

        System.out.println(time);

        return result;

    }

}

<?xml version="1.0" encoding="UTF-8"?>

<beans xmlns="http://www.springframework.org/schema/beans"

    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

    xmlns:aop="http://www.springframework.org/schema/aop"

    xmlns:context="http://www.springframework.org/schema/context"

    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd

        http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd

        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">

    <!-- 配置自动扫描的包 -->

    <context:component-scan base-package="com.dascom.hawk.app.web.tool"></context:component-scan>

    <!-- 自动为切面方法中匹配的方法所在的类生成代理对象。

       proxy-target-class="true" 这个的作用是struts的控制类都基础的actionSupport，必须添加这个，不然会报错

     -->

    <aop:aspectj-autoproxy proxy-target-class="true" />

</beans>