有没有人有使用切面编程的例子
如题，最好是xml和注解版的
[解决办法]
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

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<aop:aspectj-autoproxy/>
<bean id="anno_advice" class="com.AnnoAdvice"></bean>

2
看如何实现注解的

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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
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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

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@AfterReturning(pointcut="addAspect()")
public void back()
{
System.out.println("返回");
}

5 @around的用法

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@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;
}