@Aspect注解形式实现AOP实例

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1：applicationcontext04.xml

<?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:tx="http://www.springframework.org/schema/tx"      xmlns:context="http://www.springframework.org/schema/context"    xsi:schemaLocation="                http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd                http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.2.xsd                http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.2.xsd             http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd">             <context:component-scan base-package="com.zn.common" annotation-config="true"></context:component-scan><!-- ASPECTJ注解 -->    <aop:aspectj-autoproxy proxy-target-class="true" />  <bean id="checkip" class="com.zn.service.impl.CheckipImpl"/></beans>

2：CheckHelper04.java

package com.zn.common;import org.aspectj.lang.annotation.AfterReturning;import org.aspectj.lang.annotation.Aspect;import org.aspectj.lang.annotation.Before;import org.aspectj.lang.annotation.Pointcut;import org.springframework.stereotype.Component;/** *  * @author zhangna * 通过注解的方式 */@Aspect@Componentpublic class CheckHelper04{/*@Pointcut("execution(* com.zn.service.impl..*(..))")*/@Pointcut("execution(* *.check(..))")public void checkpoint(){}    @AfterReturning("checkpoint()")public void afterCheck() {System.err.println("str==");// TODO Auto-generated method stubSystem.err.println("登录后要记录日志");}@Before("checkpoint()")public void beforeCheck() {// TODO Auto-generated method stubSystem.err.println("登录前要校验");System.err.println("超过登录次数的要锁定");}}

3:CheckipImpl.java

package com.zn.service.impl;import org.aspectj.lang.annotation.Aspect;import org.springframework.stereotype.Component;import org.springframework.stereotype.Service;import com.zn.service.Checkipable;@Servicepublic class CheckipImpl implements Checkipable{public void check() {// TODO Auto-generated method stubSystem.err.println("登录校验");}}

4: Checkipable.java

package com.zn.service;import org.aspectj.lang.annotation.Aspect;import org.springframework.stereotype.Service;@Servicepublic interface Checkipable {//校验void check();}

5:MainTest04.java

package com.zn;import org.springframework.context.ApplicationContext;import org.springframework.context.support.ClassPathXmlApplicationContext;import com.zn.service.Checkipable;public class MainTest04 {public static void main(String args[]){ApplicationContext ct = new ClassPathXmlApplicationContext("applicationcontext04.xml");Checkipable check = (Checkipable)ct.getBean("checkip");check.check();}}

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