使用MethodInterceptor实现AOP

1. 先写出业务对象接口及实现业务对象。

 

Java代码  

1. public interface Interface {  
2.     public void hello();  
3. }  

   这里写俩个实现。

Java代码  

1. public class InterfaceImpl implements Interface {  
2.   
3.     /**  
4.      * @see com.alipay.aop.BusinessInterface#hello() 
5.      */  
6.     @Override  
7.     public void hello() {  
8.         System.out.println("AOP TEST!!");  
9.     }  
10. }  

 

 

Java代码  

1. public class InterfaceImplTest implements Interface {  
2.   
3.     /**  
4.      * @see aop.Interface#hello() 
5.      */  
6.     @Override  
7.     public void hello() {  
8.         System.out.println("helo world!!");  
9.     }  
10.   
11. }  

 

 

2. 实现自己的代理，创建自己的interceptor

 

Java代码  

1. public class MyInterceptor implements MethodInterceptor {  
2.   
3.     /**  
4.      * @see org.aopalliance.intercept.MethodInterceptor#invoke(org.aopalliance.intercept.MethodInvocation) 
5.      */  
6.     @Override  
7.     public Object invoke(MethodInvocation methodInvocation) throws Throwable {  
8.         String info = methodInvocation.getMethod().getDeclaringClass()+ "." +   
9.         methodInvocation.getMethod().getName() + "()";  
10.           
11.         System.out.println(info);  
12.           
13.         try{  
14.             Object result = methodInvocation.proceed();  
15.             return result;  
16.         }  
17.         finally{  
18.             System.out.println(info);  
19.         }  
20.     }  
21. }  

 

3. 配置文件

 <?xml version="1.0" encoding="GBK"?>

Java代码  

1. <beans xmlns="http://www.springframework.org/schema/beans"  
2.     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  
3.     xmlns:p="http://www.springframework.org/schema/p"  
4.     xmlns:sofa="http://img.alipay.net/dtd/schema/service"  
5.     xmlns:context="http://www.springframework.org/schema/context"  
6.     xmlns:webflow="http://www.springframework.org/schema/webflow-config"  
7.     xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd  
8.          http://img.alipay.net/dtd/schema/service http://img.alipay.net/dtd/schema/service/sofa-service.xsd  
9.          http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsd  
10.          http://www.springframework.org/schema/webflow-config http://www.springframework.org/schema/webflow-config/spring-webflow-config-2.0.xsd"  
11.     default-autowire="byName">  
12.       
13.     <bean id="beanTarget" class="aop.InterfaceImpl"/>  
14.       
15.     <bean id="hello" class="aop.InterfaceImplTest" />  
16.       
17.     <bean id="myInterceptor" class="aop.MyInterceptor"/>  
18.       
19.     <bean id="bean" class="org.springframework.aop.framework.ProxyFactoryBean">  
20.         <property name="proxyInterfaces">  
21.             <value>aop.Interface</value>  
22.         </property>  
23.           
24.         <property name="interceptorNames">  
25.             <list>  
26.                 <value>myInterceptor</value>  
27.                 <value>beanTarget</value>  
28.             </list>  
29.         </property>  
30.     </bean>  
31.       
32.     <bean id="testBean" class="org.springframework.aop.framework.ProxyFactoryBean">  
33.         <property name="proxyInterfaces">  
34.             <value>aop.Interface</value>  
35.         </property>  
36.           
37.         <property name="interceptorNames">  
38.             <list>  
39.                 <value>myInterceptor</value>  
40.                 <value>hello</value>  
41.             </list>  
42.         </property>  
43.     </bean>  
44. </beans>  

 

 

 

4. 测试代码

 

 

Java代码  

1. public class Main {  
2.   
3.     /** 
4.      *  
5.      * @param args 
6.      */  
7.     public static void main(String[] args) {  
8.         ClassPathResource resource = new ClassPathResource("spring.xml");  
9.         XmlBeanFactory beanFactory = new XmlBeanFactory(resource);  
10.         Interface bean = (Interface)beanFactory.getBean("bean");  
11.         bean.hello();  
12.           
13.         Interface testBean = (Interface)beanFactory.getBean("testBean");  
14.         testBean.hello();  
15.     }  
16. }