用注解的方式进行SpringAOP开发

1.先定义一个简单的接口：

package org.pan.service;

public interface PersonService {
	
	public void save();
	
	public void update();
	
	public void delete();

}

2.实现这个接口：

package org.pan.service.impl;

import org.pan.service.PersonService;

public class PersonServiceBean implements PersonService{

	@Override
	public void delete() {
		System.out.println("调用delete方法");
	}

	@Override
	public void save() {
		System.out.println("调用save方法");	
	}

	@Override
	public void update() {
		System.out.println("调用update方法");	
	}

}

 3.定义一个拦截类：

package org.pan.aop;

import org.aspectj.lang.annotation.AfterReturning;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;

@Aspect	//此字段说明此类为切面
@SuppressWarnings("unused")
public class PersonInterceptor  {
	
	@Pointcut("execution (* org.pan.service.*.*(..))")
	private void anyMethod(){}//声明一个切点
	
	@Before("anyMethod()")
	public void doAccess(){
		System.out.println("前置通知！");
	}
	
	@AfterReturning("anyMethod()")
	public void afterDo(){
		System.out.println("后置通知！");
	}
}

 4.spring配置文件：

<?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:p="http://www.springframework.org/schema/p"
	xmlns:aop="http://www.springframework.org/schema/aop" 
	xmlns:tx="http://www.springframework.org/schema/tx"
	xsi:schemaLocation="http://www.springframework.org/schema/beans 
	http://www.springframework.org/schema/beans/spring-beans-2.5.xsd 
	http://www.springframework.org/schema/aop 
	http://www.springframework.org/schema/aop/spring-aop-2.5.xsd 
	http://www.springframework.org/schema/tx 
	http://www.springframework.org/schema/tx/spring-tx-2.5.xsd ">
	
	<aop:aspectj-autoproxy />
	
	<bean id="personInterceptor" class="org.pan.aop.PersonInterceptor" />
	
	<bean id="personService" class="org.pan.service.impl.PersonServiceBean" />
	
</beans>

 大功告成了，下面来单元测试一下吧：

package junit.test;

import org.junit.BeforeClass;
import org.junit.Test;
import org.pan.service.PersonService;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class SpringAopTest {

	@BeforeClass
	public static void setUpBeforeClass() throws Exception {
	}
	@Test public void interceptorTest(){
		ApplicationContext ctx=new ClassPathXmlApplicationContext("applicationContext.xml");
		PersonService personService=(PersonService)ctx.getBean("personService");
		personService.save();
	}
}