1 /** */ /**
 2  * 
 3   */
 4 package  com.dragon.study;
 5
 6 /** */ /**
 7  *  @author  dragon
 8  *
 9   */
10 public   interface  IStudent  {
11     
12      public   void  addStudent(String name);
13 }
14

 1 /** */ /**
 2  * 
 3   */
 4 package  com.dragon.study.Impl;
 5
 6 import  com.dragon.study.IStudent;
 7
 8 /** */ /**
 9  *  @author  dragon
10  *
11   */
12 public   class  StudentImpl  implements  IStudent {
13
14       public   void  addStudent(String name) {
15          System.out.println( " 欢迎  " + name + "  你加入Spring家庭! " );
16      }
17 }
18

 1 /** */ /**
 2  * 
 3   */
 4 package  com.dragon.Advice;
 5
 6 import  java.lang.reflect.Method;
 7
 8 import  org.springframework.aop.MethodBeforeAdvice;
 9
10 /** */ /**
11  *  @author  dragon
12  *
13   */
14 public   class  BeforeAdvice  implements  MethodBeforeAdvice {
15
16        public   void  before(Method method,Object[] args, Object target)
17                 throws  Throwable {
18           
19           System.out.println( " 这是BeforeAdvice类的before方法. " );
20           
21       }
22 }
23

 1/** *//**
 2 * 
 3 */
 4package com.dragon.Advice;
 5
 6import java.lang.reflect.Method;
 7
 8import org.springframework.aop.AfterReturningAdvice;
 9
10/** *//**
11 * @author dragon
12 *
13 */
14public class AfterAdvice implements AfterReturningAdvice{
15    
16    public void afterReturning(Object returnValue ,Method method,
17                   Object[] args,Object target) throws Throwable{
18        System.out.println("这是AfterAdvice类的afterReturning方法.");
19    }
20      
21
22}
23

 1/** *//**
 2 * 
 3 */
 4package com.dragon.Advice;
 5
 6import org.aopalliance.intercept.MethodInterceptor;
 7import org.aopalliance.intercept.MethodInvocation;
 8
 9
10/** *//**
11 * @author dragon
12 *
13 */
14public class CompareInterceptor implements MethodInterceptor{
15
16      public Object invoke(MethodInvocation invocation) throws Throwable{
17          Object result = null;
18         String stu_name = invocation.getArguments()[0].toString();
19         if ( stu_name.equals("dragon")){
20             //如果学生是dragon时,执行目标方法,
21              result= invocation.proceed();
22              
23         } else{
24             System.out.println("此学生是"+stu_name+"而不是dragon,不批准其加入.");
25         }
26        
27          return result;
28      }
29}
30

 1<?xml version="1.0" encoding="UTF-8"?>
 2<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">
 3
 4<beans>
 5
 6<bean id="beforeAdvice" class="com.dragon.Advice.BeforeAdvice"></bean>
 7<bean id="afterAdvice" class="com.dragon.Advice.AfterAdvice"></bean>
 8<bean id="compareInterceptor" class="com.dragon.Advice.CompareInterceptor"></bean>
 9<bean id="studenttarget" class="com.dragon.study.Impl.StudentImpl"></bean>
10
11<bean id="student" class="org.springframework.aop.framework.ProxyFactoryBean">
12  <property name="proxyInterfaces">
13    <value>com.dragon.study.IStudent</value>
14  </property>
15  <property name="interceptorNames">
16    <list>
17     <value>beforeAdvice</value>
18     <value>afterAdvice</value>
19    <value>compareInterceptor</value>  
20    </list>
21  </property>
22  <property name="target">
23    <ref bean="studenttarget"/>
24  </property>
25
26</bean>
27
28
29
30
31</beans>

 1/** *//**
 2 * 
 3 */
 4package com;
 5
 6import org.springframework.context.ApplicationContext;
 7import org.springframework.context.support.FileSystemXmlApplicationContext;
 8
 9import com.dragon.study.IStudent;
10
11/** *//**
12 * @author dragon
13 *
14 */
15public class Test {
16
17    /** *//**
18     * @param args
19     */
20    public static void main(String[] args) {
21        // TODO Auto-generated method stub
22      ApplicationContext ctx = 
23          new FileSystemXmlApplicationContext("/com/dragon/applicationContext.xml");
24      
25      IStudent person = (IStudent)ctx.getBean("student");
26      person.addStudent("dragon");
27      
28//      person.addStudent("javadragon");
29    }
30
31}
32