AOP Simple example

There is a simple Spring AOP Style example that took me some time to finish it. It's so easy and enjoyable. Hope it would do some help to you.

代码:

import org.aopalliance.intercept.MethodInterceptor; import org.aopalliance.intercept.MethodInvocation; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; /**  * User: xxxxxxx  * Date: Dec 17, 2003  * Time: 7:54:56 PM  * all rights reserved by utstarcom  */ public class MyInterceptor implements MethodInterceptor {     private final Log logger=LogFactory.getLog(MyInterceptor.class);     public Object invoke(MethodInvocation methodInvocation) throws Throwable {         logger.info("Beginning method: " + methodInvocation.getMethod().getDeclaringClass() + "::" + methodInvocation.getMethod().getName());         for(int i=0;i            logger.info(methodInvocation.getArgument(i));         }         long startTime = System.currentTimeMillis();         try {             Object retVal = methodInvocation.proceed();             return retVal;         } finally {             logger.info("Ending method: " + methodInvocation.getMethod().getDeclaringClass() + "::" + methodInvocation.getMethod().getName());             logger.info("Method invocation time: " + (System.currentTimeMillis() - startTime) + " msecs.");         }     } }

代码:

import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; /**  * User: xxxxxx  * Date: Dec 17, 2003  * Time: 8:07:41 PM  * all rights reserved by utstarcom  */ public class HelloWorldImpl implements HelloWorld{     private final static Log logger = LogFactory.getLog(HelloWorldImpl.class);     public void sayHello(int age,String name){         logger.info("age:"+age+" name:"+name);     } }

代码:

import org.springframework.beans.factory.BeanFactory; import org.springframework.beans.factory.xml.XmlBeanFactory; import java.io.InputStream; import java.io.FileInputStream; /**  * User: xxxxx  * Date: Dec 17, 2003  * Time: 8:00:38 PM  * all rights reserved by utstarcom  */ public class StudyAOP {     public static void main(String[] args){         //try to initialize the BeanFactory         BeanFactory factory = null;         InputStream in=null;         try{             in = Thread.currentThread().getContextClassLoader().getResourceAsStream("config.xml");             factory=new XmlBeanFactory(in);             HelloWorld greet=(HelloWorld)factory.getBean("greeting");             greet.sayHello(10,"zhonglin");         }catch(Exception e){             e.printStackTrace();         }finally{             try{in.close();}catch(Exception e){}         }     } }

 

代码:

HelloWorld                                             myInterceptor                 helloworld

代码:

/**  * User: xxxxx  * Date: Dec 17, 2003  * Time: 8:17:19 PM  * all rights reserved by utstarcom  */ public interface HelloWorld {     void sayHello(int age,String name); }

 

         come from http://spring.jactiongroup.net/viewtopic.php?t=144