spring学习 十一 AspectJ-based的通知入门 不带参数的通知

package com.airplan.pojo;import org.aspectj.lang.ProceedingJoinPoint;public class AspectJAdvice {
/*
* 前置通知
*/
public void before() {
System.out.println("前置通知执行");
} /*
* 后置通知,after通知，无论切点是否发生异常都会执行
*/
public Object after() {
System.out.println("after 通知执行了");
return null;
} /*
* 后置通知，after-returning,只有切点正常结束时才会执行
*/
public Object afterReturn() {
System.out.println("afterReturn 通知执行了");
return null;
} /**
* 环绕通知需要有一个返回值，以及一个参数
* @param p
* @return
* @throws Throwable
*/
public Object arround(ProceedingJoinPoint p) throws Throwable{
System.out.println("执行环绕");
System.out.println("环绕-前置");
Object result = p.proceed();
System.out.println("环绕后置");
return result;
} /*
* 异常通知
*/
public void mythrow(){
System.out.println("异常");
}
}

<?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.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop.xsd"> <!-- 第一步：注册通知类 ,与切点类--> <bean id="advices" class="com.airplan.pojo.AspectJAdvice"></bean>
<bean id="pointCutClass" class="com.airplan.pojo.PointCutClass"></bean>
<!-- 第二步：配置切面 -->
<aop:config>
<!-- 配置切面，绑定通知类 -->
<aop:aspect ref="advices">
<!-- 配置切点 -->
<aop:pointcut expression="execution(* com.airplan.pojo.PointCutClass.*(..))" id="pointCutFun"/>
<!-- 配置通知与切点关联 -->
<aop:after method="after" pointcut-ref="pointCutFun"/>
<aop:before method="before" pointcut-ref="pointCutFun"/>
<aop:after-returning method="afterReturn" pointcut-ref="pointCutFun"/>
<aop:around method="arround" pointcut-ref="pointCutFun"/>
<aop:after-throwing method="mythrow" pointcut-ref="pointCutFun"/>
</aop:aspect>
</aop:config></beans>

package com.airplan.test;import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;import com.airplan.pojo.PointCutClass;public class AopDemo {
public static void main(String[] args) {
ApplicationContext ac=new ClassPathXmlApplicationContext("applicationContext.xml");
PointCutClass pc = ac.getBean("pointCutClass",PointCutClass.class);
pc.pointCutFun();
}
}