spring aop 通知簡單例子

 

 

package cn.itcast.service;

import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;

@Aspect
public class MyInterceptor {
 
 @Pointcut("execution(* cn.itcast.service.impl.PersonServiceBean.*(..))")
 private void anyMethod()
 {
  System.out.println("切面-----");
 }
 
 @Before("anyMethod()")
 public void doAccessCheck()
 {
  System.out.println("前置通知"); 
 }
 
 //@AfterReturning(pointcut="anyMethod()",returning="result")
 public void doAfterReturning(String result)
 {
 System.out.println("後置通知"+result); 
 }
 
 public void doAfter()
 {
  System.out.println("最終通知");
 }
 
 public void doAfterThrowing()
 {
  System.out.println("例外通知");
 }
 
 //@Around("anyMethod()")
 public Object doBasicProfiling(ProceedingJoinPoint pjp) throws Throwable
 {
  System.out.println("進入方法");
  Object result=pjp.proceed();
  System.out.println("退出方法");
  return result;
  
 }
}

/**

//@Aspect
public class MyInterceptor {

 //@Pointcut("execution(* cn.itcast.service.impl.PersonServiceBean.*(..))")
 //private void anyMethod()
 //{
  //System.out.println("切面-----");
 //}
 //@Before("anyMethod() && args(name)")
 public void doAccessCheck(String name)
 {
  System.out.println("前置通知"+name); 
 }
 
 //@AfterReturning(pointcut="anyMethod()",returning="result")
 public void doAfterReturning(String result)
 {
 System.out.println("後置通知"+result); 
 }
 
 public void doAfter()
 {
  System.out.println("最終通知");
 }
 
 public void doAfterThrowing()
 {
  System.out.println("例外通知");
 }
 
 //@Around("anyMethod()")
 public Object doBasicProfiling(ProceedingJoinPoint pjp) throws Throwable
 {
  System.out.println("進入方法");
  Object result=pjp.proceed();
  System.out.println("退出方法");
  return result;
  
 }
}

**/

-----------------------------

package cn.itcast.service;

import java.util.List;
import java.util.Map;
import java.util.Properties;
import java.util.Set;

public interface PersonService {
 
 public void save(String name);
 public void update(String name, Integer personid);
 public String getPersonName(Integer personid);
 

}

-------------------------------------

package cn.itcast.service.impl;

import cn.itcast.service.PersonService;

public class PersonServiceBean implements PersonService {
 
 
 public String getPersonName(Integer personid) {
  System.out.println("------這是getPersonName方法");
  return "xxx";
 }

 public void save(String name) {
  //throw new RuntimeException("我愛例外");
  System.out.println("------這是save方法");
 }

 public void update(String name, Integer personid) {
  
  System.out.println("------這是update方法");
  
 }
 
 

 
 
 
 

}

---------------------------------------

<?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:context="http://www.springframework.org/schema/context"
       xmlns:aop="http://www.springframework.org/schema/aop"     
       xsi:schemaLocation="http://www.springframework.org/schema/beans
           http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
           http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsd
           http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd">
        <aop:aspectj-autoproxy/>
       
        <bean id="myInterceptor" class="cn.itcast.service.MyInterceptor"/>
       
       
        <bean id="personService" class="cn.itcast.service.impl.PersonServiceBean"></bean>
       
    
</beans>

 

 

--------------------

package test;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import cn.itcast.service.PersonService;

 

public class Test {

 /**
  * @param args
  */
 public static void main(String[] args) {
  ApplicationContext cxt = new ClassPathXmlApplicationContext("app.xml");
  PersonService p = (PersonService)cxt.getBean("personService");
  p.save("222");
  //p.getPersonName(222);
  
  
  
}
}