学习完了Spring AOPAnnotation之后在再学xml方式的我觉得就很简明易懂了。这个案例不再将一些细节性的问题再次叙述，请看案例代码，如下所示：
1、 编写被代理对象：
[java]
import org.springframework.stereotype.Component;
import com.spring.dao.UserDao;
@Component("userService")
public class UserServiceImpl implements UserService{
private UserDao userDao;
public void setUserDao(UserDao userDao) {
this.userDao = userDao;
}
//在下面方法前面加逻辑
public void HelloWorld(){
System.out.println("helloworld");
}
}
2、编写配置文件：
[html]
< xml version="1.0" encoding="UTF-8" >
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-2.5.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-2.5.xsd" >
3、编写测试文件：
[java]
package com.spring.test;
import org.junit.Test;
import org.springframework.beans.factory.BeanFactory;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import com.spring.service.UserService;
public class SpringTest {
@Test
public void test01() {
BeanFactory applicationContext = new ClassPathXmlApplicationContext(
"beans.xml");
UserService user = (UserService) applicationContext.getBean("userService");
user.HelloWorld();
}
}