使用classPath自动扫描装配（貌似PersonDaoBean没有装配进来）

cn.dao

[java] view plaincopy

1. <pre name="code" class="java">package cn.dao;  
2.   
3. public interface PersonDaoInterface {  
4.   
5.     public abstract void add();  
6.   
7. }  

cn.dao.imp

package cn.dao.imp;import org.springframework.stereotype.Service;import cn.dao.PersonDaoInterface;@Servicepublic class PersonDao implements PersonDaoInterface {public void add(){System.out.println("执行PersonDao.add()");}}

cn.service

[java] view plaincopy

1. package cn.service;  
2.   
3. public interface PersonService {  
4.   
5.     public abstract void save();  
6.   
7. }  

cn.service.imp

package cn.service.imp;import javax.annotation.Resource;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor;import org.springframework.beans.factory.annotation.Qualifier;import org.springframework.stereotype.Service;import cn.dao.imp.PersonDao;import cn.service.PersonService;@Servicepublic class PersonServiceBean implements PersonService {private String name;private PersonDao personDao;public String getName() {return name;}public void setName(String name) {this.name = name;}public PersonDao getPersonDao() {return personDao;}public void setPersonDao(PersonDao personDao) {this.personDao = personDao;}public void save(){personDao.add();}}

juintest

package junit.test;import org.junit.Test;import org.springframework.context.ApplicationContext;import org.springframework.context.support.AbstractApplicationContext;import org.springframework.context.support.ClassPathXmlApplicationContext;import cn.service.imp.PersonServiceBean;public class SpringTest {@Test public void instanceSpring(){AbstractApplicationContext ctx=new ClassPathXmlApplicationContext(new String[]{"beans.xml"});//这里不一样，因为我们没有bean文件，所以把这里的PersonServiceBean改为personServiceBeanPersonServiceBean personServiceBean=(PersonServiceBean) ctx.getBean("personServiceBean");//这个时候PersonServiceBean已经注入，但是貌似PersonDaoBean没有注入。System.out.println(personServiceBean);personServiceBean.save();ctx.close();}}

bean.xml

<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans"       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"       xmlns:context="http://www.springframework.org/schema/context"       xsi:schemaLocation="http://www.springframework.org/schema/beans           http://www.springframework.org/schema/beans/spring-beans-2.5.xsd           http://www.springframework.org/schema/context           http://www.springframework.org/schema/context/spring-context-2.5.xsd">        <context:component-scan base-package="cn"></context:component-scan></beans>