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： ~~~ 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： ~~~ <?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: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" > <context:annotation-config/> <!-- 配置容器资源扫描的包 --> <context:component-scan base-package="com.spring" /> <!-- 将前面类写入容器 --> <bean id="logInterceptor" class="com.spring.aop.LogInterceptor" /> <!-- 配置AOP --> <aop:config> <!-- 声明pointcut --> <aop:pointcut expression="execution(public * com.spring.service..*.*(..))" id="servicepoint" /> <!-- 声明切面类 --> <aop:aspect id="aspectLog" ref="logInterceptor"> <aop:before method="BeforeMethod" pointcut-ref="servicepoint"/> <aop:after-returning method="AfterMethod" pointcut-ref="servicepoint"/> <aop:around method="aroundProcced" pointcut-ref="servicepoint"/> </aop:aspect> </aop:config> </beans> ~~~ 3、编写测试文件： ~~~ 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(); } } ~~~