Spring, 基于自动代理实现aop

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd"> 
<bean id="studentDaoImpl" class="net.wchdai.spring.dao.impl.StudentDAOImpl"/>

<bean id="studentProxy" class="net.wchdai.spring.proxy.MyStudentProxy"/>
<!--
<bean id="studentDaoPointCut" class="org.springframework.aop.support.JdkRegexpMethodPointcut">
<property name="pattern" value=".*Student"></property>
</bean>
<bean id="studentDaoProxyFactory" class="org.springframework.aop.framework.ProxyFactoryBean">
<property name="target" ref="studentDaoImpl"></property>
<property name="interceptorNames" value="studentDaoAdvisor"></property>
<property name="proxyInterfaces" value="net.wchdai.spring.dao.StudentDAO"></property>
</bean> -->

<bean id="studentDaoAdvisor" class="org.springframework.aop.support.RegexpMethodPointcutAdvisor">
<property name="advice" ref="studentProxy"></property>
<property name="pattern" value=".*Student"></property>
</bean>

<bean class="org.springframework.aop.framework.autoproxy.DefaultAdvisorAutoProxyCreator"></bean>

</beans>

package net.wchdai.spring.test;

import net.wchdai.spring.dao.StudentDAO;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import junit.framework.TestCase;

public class StudentAOPTest extends TestCase{
public void testAOPProxy(){
ApplicationContext ctx = new ClassPathXmlApplicationContext("ApplicationContext.xml");
//      StudentDAO sdao=(StudentDAO)ctx.getBean("studentDaoProxyFactory");
StudentDAO sdao=(StudentDAO)ctx.getBean("studentDaoImpl");
sdao.saveStudent();
}
}

before
StudentDAOImpl save student
afterReturning