springAop

http://www.oschina.net/code/snippet_246557_9205

@Before是在所攔截方法執行之前執行一段邏輯。
@After 是在所攔截方法執行之後執行一段邏輯。
@Around是可以同時在所攔截方法的前後執行一段邏輯。

 

package com.itsoft.action;

 

import org.springframework.context.support.ClassPathXmlApplicationContext;

import org.springframework.stereotype.Controller;

 

/**

 *

 * @author zxf

 * 演示aop測試類

 */

@Controller

public class UserAction {

     

    public void queryUsers(){

         

        System.out.println("查詢所有用戶【all users list】");

    }

     

    public static void main(String[] args) {

         

        ClassPathXmlApplicationContext ctx = new ClassPathXmlApplicationContext("application-aop.xml");

         

        UserAction userAction = (UserAction)ctx.getBean("userAction");

        userAction.queryUsers();

         

        ctx.destroy();

    }

}

--------------------------------------------------------------------------

@Aspect

@Component

public class LogIntercept {

     

    @Pointcut("execution(public * com.itsoft.action..*.*(..))")

    public void recordLog(){}

     

     

    @Before("recordLog()")

    public void before() {

        this.printLog("已經記錄下操作日誌@Before 方法執行前");

    }

     

    @Around("recordLog()")

    public void around(ProceedingJoinPoint pjp) throws Throwable{

        this.printLog("已經記錄下操作日誌@Around 方法執行前");

        pjp.proceed();

        this.printLog("已經記錄下操作日誌@Around 方法執行後");

    }

     

     

    @After("recordLog()")

    public void after() {

        this.printLog("已經記錄下操作日誌@After 方法執行後");

    }

     

     

    private void printLog(String str){

        System.out.println(str);

    }

}

-------------------------------

<?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/context

       http://www.springframework.org/schema/context/spring-context-3.0.xsd

       http://www.springframework.org/schema/beans

       http://www.springframework.org/schema/beans/spring-beans-3.0.xsd

       http://www.springframework.org/schema/aop

       http://www.springframework.org/schema/aop/spring-aop-3.0.xsd">

    <context:annotation-config />

    <context:component-scan base-package="com.itsoft"/>

    <aop:aspectj-autoproxy />

</beans>