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Service.java

package bean;public interface Service {	public void service();}

package bean;public class ServiceImpl implements Service {	//业务方法	public void service() {		// TODO Auto-generated method stub		System.out.println("i'm servicing");	}}

package interceptor;import org.springframework.stereotype.Component;@Componentpublic class Interceptor {	public void before() {		System.out.println("服务即将开始");	}	public void afterReturning() {		System.out.println("returning");	}	public void afterThrowing(RuntimeException ex) {		System.out.println("find exception:" + ex.getMessage());	}}

package bean;import java.lang.reflect.Proxy;import org.junit.After;import org.junit.Before;import org.junit.Test;import org.springframework.beans.factory.BeanFactory;import org.springframework.context.support.ClassPathXmlApplicationContext;public class ServiceTest {	@Test	public void proxy() {		BeanFactory factory = new ClassPathXmlApplicationContext(				"applicationContext.xml");		Service s = (Service) factory.getBean("serviceImpl");		s.service();	}}