详解Spring 基于 Aspect 注解的增强实现

网友投稿 260 2023-05-20


详解Spring 基于 Aspect 注解的增强实现

整理文档,搜刮出一个Spring 基于 Aspect 注解的增强实现的代码,稍微整理精简一下做下分享

定义基本实体类

package com.advice;

/**

* @author Duoduo

* @version 1.0

* @date 2017/4/25 23:41

*/

public class Performer {

public void doPerform() {

System.out.println("Performer do perform ....................... ");

}

}

定义基于注解的增强类

package com.advice;

import org.aspectj.lang.ProceedingJoinPoint;

import org.aspectj.lang.annotation.*;

/**

* @author Duoduo

* @version 1.0

* @date 2017/4/25 23:42

*/

@Aspect//定义切面

public class Audience {

//定义切点

@Pointcut("execution(* com.advice.Performer.doPerform(..))")

public void doPerform(){}

@Before("doPerform()")

public void takeSeas() {

System.out.println("The audience is taking their seats.");

}

http:// @Before("doPerform()")

public void turnOffPhone() {

System.out.println("The audience is turn off their cellphone.");

}

@AfterReturning("doPerform()")

public void applaund() {

System.out.println("CLAP CLAP CLAP CLAP ...");

}

@AfterThrowing("doPerform()")

public void demandRefund() {

System.out.println("Boo! we want our money back!");

}

@ArkvxEHnYoound("doPerform()")

public void watchPerfomance(ProceedingJoinPoint joinPoint) {

try {

Long start = System.currentTimeMillis();

joinPoint.proceed();

long end = System.currentTimeMillis();

System.out.println("The performance took "+(end-start)+" milliseconds");

} catch (Throwable throwable) {

throwable.printStackTrace();

}

}

}

Spring 自动代理配置

Junit测试

@Test

public void testDoPerform() throws Exception {

ApplicationContext context = new ClassPathXmlApplicationContext("classpath:smart-context.xml");

//代理为指向Interface的代理

kvxEHnYoPerformer performer = (Performer) context.getBean("performer");

System.out.println("+++++kvxEHnYo++++++++++++++++++++++++++++");

performer.doPerform();

}

测试结果

+++++++++++++++++++++++++++++++++

2017-04-26 20:51:16,980 DEBUG [main] (AbstractBeanFactory.java:251) - Returning cached instance of singleton bean 'audience'

The audience is taking their seats.

The audience is turn off their cellphone.

Performer do perform .......................

The performance took 91 milliseconds

CLAP CLAP CLAP CLAP ...


版权声明:本文内容由网络用户投稿,版权归原作者所有,本站不拥有其著作权,亦不承担相应法律责任。如果您发现本站中有涉嫌抄袭或描述失实的内容,请联系我们jiasou666@gmail.com 处理,核实后本网站将在24小时内删除侵权内容。

上一篇:Java计算两个程序运行时间的实例
下一篇:利用Vue v
相关文章

 发表评论

暂时没有评论,来抢沙发吧~