Spring 一二事（八）

1 <!-- 2            component:把一个类放入到spring容器中,该类就是一个component3            在base-package指定的包及子包下扫描所有的类4     -->5     <context:component-scan base-package="com.lee.spring012.scan.mvc.annotation"></context:component-scan>

1 package com.lee.spring012.scan.mvc.annotation;2 3 public interface IStuDAO {4     public void saveStu();5 }

1 package com.lee.spring012.scan.mvc.annotation;2 3 public interface IStuService {4     public void saveStu();5 }

 1 package com.lee.spring012.scan.mvc.annotation; 2  3 import javax.annotation.Resource; 4  5 import org.springframework.context.annotation.Scope; 6 import org.springframework.stereotype.Controller; 7  8 @Controller 9 @Scope("prototype")        // action为多例10 public class PersonAction {11 12     @Resource13     public IStuService stuServiceImpl;14 15     public void displaySave() {16         System.out.println("mvc action: saving stu...");17         stuServiceImpl.saveStu();18     }19 20 }

 1 package com.lee.spring012.scan.mvc.annotation; 2  3 import org.springframework.stereotype.Repository; 4  5 @Repository 6 public class StuDAOImpl implements IStuDAO { 7  8     @Override 9     public void saveStu() {10         System.out.println("mvc dao: saving stu...");11     }12 13 }

 1 package com.lee.spring012.scan.mvc.annotation; 2  3 import javax.annotation.Resource; 4  5 import org.springframework.stereotype.Service; 6  7 @Service 8 public class StuServiceImpl implements IStuService { 9 10     @Resource11     public IStuDAO stuDAOImpl;12     13     @Override14     public void saveStu() {15         System.out.println("mvc service: saving stu...");16         stuDAOImpl.saveStu();17     }18 19 }

 1 package com.lee.spring012.scan.mvc.annotation; 2  3 import org.junit.Test; 4 import org.springframework.context.ApplicationContext; 5 import org.springframework.context.support.ClassPathXmlApplicationContext; 6  7 public class PersonTest { 8  9     @Test10     public void testPersonAction() {11         ApplicationContext context = new ClassPathXmlApplicationContext("applicationContext-scan-mvc.xml");12         PersonAction person = (PersonAction)context.getBean("personAction");13         person.displaySave();14     }15 16 }