Several notifications for spring (front, back, surround, exception, final)

1. No abnormal

2, there is an abnormal

1, the proxy class interface Person.java

1  PackageCom.xiaostudy;2 3 /**4 * @desc proxy class Interface5  * 6  * @authorXiaostudy7  *8  */9  Public InterfacePerson {Ten  One      Public voidAdd (); A      Public voidupdate (); -      Public voidDelete (); -}

2, by the agent class Personimple.java

1  PackageCom.xiaostudy;2 3 /**4 * @desc by proxy class5  * 6  * @authorXiaostudy7  *8  */9  Public classPersonimpleImplementsPerson {Ten  One     /** A * @desc Implement Interface method -      */ -      Public voidAdd () { theSystem.out.println ("Add () >>>>>>>>"); -     } -  - @Override +      Public voidUpdate () { -System.out.println ("Update () >>>>>>>>"); + //int i = 1/0; A     } at  - @Override -      Public voidDelete () { -System.out.println ("Delete () >>>>>>>>"); -     } -      in}

3, Myaspectj.java

1  PackageCom.xiaostudy;2 3 ImportOrg.aspectj.lang.JoinPoint;4 ImportOrg.aspectj.lang.ProceedingJoinPoint;5 6 /**7 * @desc notification class8  * 9  * @authorXiaostudyTen  * One  */ A  Public classMYASPECTJ { -      -      Public voidMybefort (Joinpoint joinpoint) { theSystem.out.println ("Pre-Notification >>>>>>>>>joinpoint:" +joinpoint.getsignature (). GetName ()); -     } -      -      Public voidmyafterreturning (Joinpoint joinpoint, Object ret) { +System.out.println ("Post-notification >>>>>>>>>joinpoint:" +joinpoint.getsignature (). GetName () -+ ", ret:" +ret); +     } A      at      PublicObject Myaround (Proceedingjoinpoint joinpoint)throwsThrowable { -System.out.println ("Surround notice = >>>>>>>>>>>"); -Object obj =joinpoint.proceed (); -System.out.println ("Surround notice = <<<<<<<<<<<"); -         returnobj; -     } in      -      Public voidMythrowint (Joinpoint joinpoint, Throwable e) { toSYSTEM.OUT.PRINTLN ("Exception notification >>>>>>>>>joinpoint:" +joinpoint.getsignature (). GetName () ++ ", E:" +e.getmessage ()); -System.exit (0); the     } *      $      Public voidMyafter (Joinpoint joinpoint) {Panax NotoginsengSYSTEM.OUT.PRINTLN ("Final notification >>>>>>>>>joinpoint:" +joinpoint.getsignature (). GetName ()); -     } the}

4. Spring configuration file Applicationcontext.xml

1<?xml version= "1.0" encoding= "UTF-8"?>2<beans xmlns= "Http://www.springframework.org/schema/beans"3Xmlns:xsi= "Http://www.w3.org/2001/XMLSchema-instance"4xmlns:aop= "HTTP://WWW.SPRINGFRAMEWORK.ORG/SCHEMA/AOP"5Xsi:schemalocation= "Http://www.springframework.org/schema/beans6http//www.springframework.org/schema/beans/spring-beans.xsd7http//WWW.SPRINGFRAMEWORK.ORG/SCHEMA/AOP8http//www.springframework.org/schema/aop/spring-aop.xsd ">9<!--created by proxy class--Ten<bean id= "Person"class= "Com.xiaostudy.PersonImple" ></bean> One<!--to create a slice class-- A<bean id= "Advice"class= "Com.xiaostudy.MyAspectJ" ></bean> -<!--SPRINGAOP Programming-- -<aop:config> the<!--to declare "facets" for the slice class to get a notification (method)-- -<aop:aspect ref= "Advice" > -<!--declare a pointcut, all notifications can be used-- -<aop:pointcut expression= "Execution (* com.xiaostudy.personimple.* (..))" id= "Mypointcut"/> +<!--pre-notification: Method name, pointcut-ref means: All notifications are shared, (pointcut means: Only the current notification is available, others are unavailable)- -<aop:before method= "Mybefort" pointcut-ref= "Mypointcut"/> +<!--Post notification: Returning: The second parameter name for the post notification, the content is the return value of the method-- A<aop:after-returning method= "myafterreturning" returning= "ret" pointcut-ref= "Mypointcut"/> at<!--surround Notifications- -<aop:around method= "Myaround" pointcut-ref= "Mypointcut"/> -<!--exception Notification: Throwing: The second parameter of the exception notification, the content is exception information-- -<aop:after-throwing method= "Mythrowint" throwing= "E" pointcut-ref= "Mypointcut"/> -<!--Final Notice-- -<aop:after method= "Myafter" pointcut-ref= "Mypointcut"/> in</aop:aspect> -</aop:config> to</beans>

5. Test class Test.java

1  PackageCom.xiaostudy;2 3 ImportOrg.springframework.context.ApplicationContext;4 ImportOrg.springframework.context.support.ClassPathXmlApplicationContext;5 6 /**7 * @desc Test class8  * 9  * @authorXiaostudyTen  * One  */ A  Public classTest { -  -      Public Static voidMain (string[] args) { theApplicationContext AC =NewClasspathxmlapplicationcontext ("Applicationcontext.xml"); -Person person = ac.getbean (' person ', person.class); - Person.add (); - person.update (); + Person.delete (); -     } +  A}

Several notifications for spring (front, back, surround, exception, final)