有没有人有使用切面编程的例子

[ziweixinghello]

如题，最好是xml和注解版的

[静山晚风]

spring aop 使用注解版例子 分类： Spring MVC J2EE Spring 2013-11-10 10:58 10人阅读 评论(0) 收藏 编辑 删除 1 applicationContext.xml里面添加 [html] view plaincopy <aop:aspectj-autoproxy/> <bean id="anno_advice" class="com.AnnoAdvice"></bean> 2 看如何实现注解的 [html] view plaincopy package com; import org.aspectj.lang.annotation.Aspect; import org.aspectj.lang.annotation.Before; import org.aspectj.lang.annotation.Pointcut; @Aspect public class AnnoAdvice { @Pointcut("execution(* com..*.add*(..))") public void addAspect() { } @Before(value="addAspect()") public void before() { System.out.println("anno-before"); } } 3 测试类 [html] view plaincopy package com.annotation; import org.springframework.context.ApplicationContext; import org.springframework.context.support.ClassPathXmlApplicationContext; import com.UserDao; public class Test { public static void main(String[] args) { ApplicationContext context = new ClassPathXmlApplicationContext("com/annotation/applicationContext.xml"); UserDao userDao = context.getBean("userDao",UserDao.class); userDao.add(null); } } 4 @afterreturning的用法 [html] view plaincopy @AfterReturning(pointcut="addAspect()") public void back() { System.out.println("返回"); } 5 @around的用法 [html] view plaincopy @Around("addAspect()") public Object deal(ProceedingJoinPoint point) { System.out.println("around start"); Object object=null; try { object = point.proceed(); } catch (Throwable e) { // TODO Auto-generated catch block e.printStackTrace(); } System.out.println("around end"); return object; }