<!--

            component:把一个类放入到spring容器中,该类就是一个component

            在base-package指定的包及子包下扫描所有的类

     -->

     <context:component-scan base-package="com.lee.spring012.scan.mvc.annotation"></context:component-scan>

 package com.lee.spring012.scan.mvc.annotation;

 public interface IStuDAO {

     public void saveStu();

 }

 package com.lee.spring012.scan.mvc.annotation;

 public interface IStuService {

     public void saveStu();

 }

 package com.lee.spring012.scan.mvc.annotation;

 import javax.annotation.Resource;

 import org.springframework.context.annotation.Scope;

 import org.springframework.stereotype.Controller;

 @Controller

 @Scope("prototype")        // action为多例

 public class PersonAction {

     @Resource

     public IStuService stuServiceImpl;

     public void displaySave() {

         System.out.println("mvc action: saving stu...");

         stuServiceImpl.saveStu();

     }

 }

 package com.lee.spring012.scan.mvc.annotation;

 import org.springframework.stereotype.Repository;

 @Repository

 public class StuDAOImpl implements IStuDAO {

     @Override

     public void saveStu() {

         System.out.println("mvc dao: saving stu...");

     }

 }

 package com.lee.spring012.scan.mvc.annotation;

 import javax.annotation.Resource;

 import org.springframework.stereotype.Service;

 @Service

 public class StuServiceImpl implements IStuService {

     @Resource

     public IStuDAO stuDAOImpl;

     @Override

     public void saveStu() {

         System.out.println("mvc service: saving stu...");

         stuDAOImpl.saveStu();

     }

 }

 package com.lee.spring012.scan.mvc.annotation;

 import org.junit.Test;

 import org.springframework.context.ApplicationContext;

 import org.springframework.context.support.ClassPathXmlApplicationContext;

 public class PersonTest {

     @Test

     public void testPersonAction() {

         ApplicationContext context = new ClassPathXmlApplicationContext("applicationContext-scan-mvc.xml");

         PersonAction person = (PersonAction)context.getBean("personAction");

         person.displaySave();

     }

 }