[www.dev1234.com]一头扎进Spring4视频教程\一头扎进Spring4源码\[www.java1234.com]《一头扎进Spring4》第七讲 源码

[www.dev1234.com]一头扎进Spring4视频教程\一头扎进Spring4源码\[www.java1234.com]《一头扎进Spring4》第八讲 源码

配置：以下重点划出的是新添加进去的

<?xml version="1.0" encoding="UTF-8"?>
<beansxmlns="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">

、、切面配置如下

    <beanid="studentServiceAspect"class="com.java1234.advice.StudentServiceAspect"></bean>//先创建好两个bean<beanid="studentService"class="com.java1234.service.impl.StudentServiceImpl"></bean>
    
    <aop:config>//config  aop标志<aop:aspectid="studentServiceAspect"ref="studentServiceAspect">//aspect定义一个切面，studentServiceAspect是切面类

        //定义切点，是方法级别的，要写表达式{第一个*表示任何是任意，后面的两点..表示参数是任意的}，指定方法<aop:pointcutexpression="execution(* com.java1234.service.*.*(..))"id="businessService"/>
            <aop:beforemethod="doBefore"pointcut-ref="businessService"/>
            <aop:aftermethod="doAfter"pointcut-ref="businessService"/>
            <aop:aroundmethod="doAround"pointcut-ref="businessService"/>//环绕<aop:after-returningmethod="doAfterReturning"pointcut-ref="businessService"/>//返回<aop:after-throwingmethod="doAfterThrowing"pointcut-ref="businessService"throwing="ex"/>//异常</aop:aspect> 
    </aop:config>

packagecom.java1234.advice;importorg.aspectj.lang.JoinPoint;importorg.aspectj.lang.ProceedingJoinPoint;public classStudentServiceAspect {public voiddoBefore(JoinPoint jp){

        System.out.println("类名:"+jp.getTarget().getClass().getName());

        System.out.println("方法名："+jp.getSignature().getName());

        System.out.println("开始添加学生："+jp.getArgs()[0]);

    }public voiddoAfter(JoinPoint jp){

        System.out.println("类名:"+jp.getTarget().getClass().getName());

        System.out.println("方法名："+jp.getSignature().getName());

        System.out.println("学生添加完成："+jp.getArgs()[0]);

    }public Object doAround(ProceedingJoinPoint pjp) throwsThrowable{

        System.out.println("添加学生前");

        Object retVal=pjp.proceed();

        System.out.println(retVal);

        System.out.println("添加学生后");returnretVal;

    }public voiddoAfterReturning(JoinPoint jp){

        System.out.println("返回通知");

    }public voiddoAfterThrowing(JoinPoint jp,Throwable ex){

        System.out.println("异常通知");

        System.out.println("异常信息："+ex.getMessage());

    }

}

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