package com.mengma.factorybean;

import org.aopalliance.intercept.MethodInterceptor;
import org.aopalliance.intercept.MethodInvocation;

//需要實(shí)現(xiàn)接口，確定哪個(gè)通知，及告訴Spring應(yīng)該執(zhí)行哪個(gè)方法
public class MyAspect implements MethodInterceptor {
public Object invoke(MethodInvocation mi) throws Throwable {
System.out.println("方法執(zhí)行之前");
// 執(zhí)行目標(biāo)方法
Object obj = mi.proceed();
System.out.println("方法執(zhí)行之后");
return obj;
}
}

<?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">
  <!--目標(biāo)類 -->
  <bean id="customerDao" class="com.mengma.dao.CustomerDaoImpl" />
  <!-- 通知 advice -->
  <bean id="myAspect" class="com.mengma.factorybean.MyAspect" />
  <!--生成代理對(duì)象 -->
  <bean id="customerDaoProxy"
   class="org.springframework.aop.framework.ProxyFactoryBean">
   <!--代理實(shí)現(xiàn)的接口 -->
    <property name="proxyInterfaces" value="com.mengma.dao.CustomerDao" />
    <!--代理的目標(biāo)對(duì)象 -->
    <property name="target" ref="customerDao" />
    <!--用通知增強(qiáng)目標(biāo) -->
    <property name="interceptorNames" value="myAspect" />
    <!-- 如何生成代理，true:使用cglib; false :使用jdk動(dòng)態(tài)代理 -->
    <property name="proxyTargetClass" value="true" />
  </bean>
</beans>

package com.mengma.factorybean;
import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import com.mengma.dao.CustomerDao;
public class FactoryBeanTest {
@Test
public void test() {
String xmlPath = "com/mengma/factorybean/applicationContext.xml";
ApplicationContext applicationContext = new ClassPathXmlApplicationContext(
xmlPath);
CustomerDao customerDao = (CustomerDao) applicationContext
.getBean("customerDaoProxy");
customerDao.add();
customerDao.update();
customerDao.delete();
customerDao.find();
}
}