切面?

import org.aopalliance.intercept.MethodInterceptor; import org.aopalliance.intercept.MethodInvocation;public class MyAspect implements MethodInterceptor{@Overridepublic Object invoke(MethodInvocation mi) throws Throwable {System.out.println("前");// 手動執行目標方法Object obj = mi.proceed();System.out.println("后");return obj;} }

?接口

public interface UserService {void addUser();void updateUser(); }

實現類?

public class UserServiceImpl implements UserService {@Overridepublic void addUser() {System.out.println("config adduser...");}@Overridepublic void updateUser() {System.out.println("config updateUser...");} }

?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:aop="http://www.springframework.org/schema/aop"xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsdhttp://www.springframework.org/schema/aophttp://www.springframework.org/schema/aop/spring-aop.xsd"><!-- 1.創建目標類 --><bean id="userService" class="com.atchina.c_spring_aop.UserServiceImpl"/><!-- 2.創建切面類 --><bean id="myAspect" class="com.atchina.c_spring_aop.MyAspect"/><!-- 3. aop編程使用<aop:config>配置<aop:pointcut> 切入點<aop:advisor>特殊的切面advice-ref="" 通知的引用pointcut-ref="" 切入點的引用expression="" 切入點表達式--> <aop:config><aop:pointcut expression="execution(* *.*(..))" id="myPointCut"/><aop:advisor advice-ref="myAspect" pointcut-ref="myPointCut" /></aop:config> </beans>

測試類:

import org.junit.Test; import org.springframework.context.ApplicationContext; import org.springframework.context.support.ClassPathXmlApplicationContext;public class TestFactoryBean {@Testpublic void test(){String xmlPath = "com/atchina/c_spring_aop/applicationContext.xml";ApplicationContext ac = new ClassPathXmlApplicationContext(xmlPath);UserService userService = (UserService)ac.getBean("userService");userService.addUser();} }

?

總結

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