Spring3.0中的前置通知、后置通知、环绕通知、异常通知

观众类Audience~~

package com.jCuckoo.demo;import org.aspectj.lang.ProceedingJoinPoint;public class Audience {public void takeSeats() {System.out.println("----开演之前，请占座----");}public void turnOffCellPhones() {System.out.println("----开始之前，请关机----");}public void applaud() {System.out.println("****鼓掌，继续鼓掌。****");}public void turnOnCellPhones() {System.out.println("****演出结束，可以开机****");}public void demandRefund() {System.out.println("$$太熊了，退我票钱$$");}public void watchPerformance(ProceedingJoinPoint joinpoint) {try {System.out.println("oooooooo环绕通知开始oooooooo");long start = System.currentTimeMillis();joinpoint.proceed();long end = System.currentTimeMillis();System.out.println("oooooooo环绕通知结束oooooooo");System.out.println("演出耗时共计：" + (end - start)+ "毫秒。");} catch (Throwable t) {System.out.println("Boo!Wewantourmoneyback!");}}}

表演接口Performer

package com.jCuckoo.demo;public interface Performer {void perform()throws Exception;}

定义魔术师Juggler，实现表演接口

package com.jCuckoo.demo;public class Juggler implements Performer {private int beanBags = 3;public Juggler() {}public Juggler(int beanBags) {this.beanBags = beanBags;}public void perform() throws Exception {System.out.println("表演开始：魔术师欺骗了" + beanBags + "个游戏豆。");}}

spring的配置文档applicationContext.xml

<?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/beanshttp://www.springframework.org/schema/beans/spring-beans-3.0.xsdhttp://www.springframework.org/schema/txhttp://www.springframework.org/schema/tx/spring-tx-3.0.xsdhttp://www.springframework.org/schema/aophttp://www.springframework.org/schema/aop/spring-aop-3.0.xsd"><bean id="juggler" class="com.jCuckoo.demo.Juggler"/><bean id="audience" class="com.jCuckoo.demo.Audience" /><aop:config><aop:aspect ref="audience"><aop:pointcut id="performance"expression="execution(* com.jCuckoo.demo.Performer.perform(..))" /><aop:before pointcut-ref="performance" method="takeSeats" /><aop:before pointcut-ref="performance" method="turnOffCellPhones" /><aop:after pointcut-ref="performance" method="turnOnCellPhones" /><aop:after-returning pointcut-ref="performance"method="applaud" /><aop:after-throwing pointcut-ref="performance"method="demandRefund" /><aop:around pointcut-ref="performance" method="watchPerformance"/></aop:aspect></aop:config></beans>

测试类，获取魔术师，并进行表演。

package com.jCuckoo.test;import org.springframework.context.ApplicationContext;import org.springframework.context.support.ClassPathXmlApplicationContext;import com.jCuckoo.demo.Performer;public class MainTest {/** * @param args */public static void main(String[] args) {ApplicationContext ctx=new ClassPathXmlApplicationContext("applicationContext.xml");Performer performer=(Performer)ctx.getBean("juggler");try {performer.perform();} catch (Exception e) {e.printStackTrace();}}}

最终结果：

 

----开演之前，请占座----
----开始之前，请关机----
oooooooo环绕通知开始oooooooo
表演开始：魔术师欺骗了3个游戏豆。
****演出结束，可以开机****
****鼓掌，继续鼓掌。****
oooooooo环绕通知结束oooooooo
演出耗时共计：1毫秒。