Spring AOP之配置文件实现方式

配置文件方式实现AOP

添加Spring依赖库： SPRING_HOME/lib/aspectj/*.jar

定义接口以及实现类：

UserService接口

package com.test.serivce; public interface UserService { public void deleteUser(String username); public void addUser(String username); }

UserServiceImpl实现类

package com.test.serivce.impl; import com.test.serivce.UserService; public class UserServiceImpl implements UserService { public void addUser(String username) { System.out.println("adding the "+username); } public void deleteUser(String username) { System.out.println("deleting the"+username); } }

Aspect切面类

package com.test; public class SecurityHandler { public void doCheck(){ System.out.println("before the method start,the Security is checking.."); } }

Spring配置文件中定义Aspect以及IOC管理实例对象

<?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: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-2.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.0.xsd"> <aop:config> <aop:aspect id="security" ref="securityHandler"> <aop:pointcut id="piontcutMethod" expression="execution(* add*(..)) || execution(* delete*(..))"/> <aop:before method="doCheck" pointcut-ref="piontcutMethod"/> </aop:aspect> </aop:config> <bean id="securityHandler" class="com.test.SecurityHandler" /> <bean id="userServiceImpl" class="com.test.serivce.impl.UserServiceImpl" /> </beans>

最后测试一下吧：

package com.test; import org.springframework.beans.factory.BeanFactory; import org.springframework.context.support.ClassPathXmlApplicationContext; import com.test.serivce.UserService; /** * @author wangking E-mail:admin717@gmail.com * @version 创建时间：2009-9-7 上午01:49:20 * 类说明 */ public class Test { public static void main(String[] args) { BeanFactory factory = new ClassPathXmlApplicationContext("applicationContext.xml"); UserService service = (UserService)factory.getBean("userServiceImpl"); service.addUser("wangking"); } }