spring(上一篇文章使用构造器，这一篇使用set方法)

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

[java] view plaincopy

1. package cn.dao.imp;  
2.   
3. import cn.dao.PersonDaoInterface;  
4.   
5. public class PersonDao implements PersonDaoInterface {  
6.     public void add()  
7.     {  
8.         System.out.println("执行PersonDao.add()");  
9.     }  
10.   
11. }  

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.InitDestroyAnnotationBeanPostProcessor;import cn.dao.imp.PersonDao;import cn.service.PersonService;public class PersonServiceBean implements PersonService {private String name;private PersonDao personDao;public PersonServiceBean(){}public PersonServiceBean(String name,PersonDao personDao) {this.name = name;this.personDao=personDao;}public String getName() {return name;}public void setName(String name) {this.name = name;}public PersonDao getPersonDao() {return personDao;}@Resourcepublic void setPersonDao(PersonDao personDao) {this.personDao = personDao;}public void save(){personDao.add();//System.out.println(name);}}

也可以这样写

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 cn.dao.imp.PersonDao;import cn.service.PersonService;public class PersonServiceBean implements PersonService {private String name;@Autowired @Qualifier("personDao") private PersonDao personDao;public PersonServiceBean(){}public PersonServiceBean(String name,PersonDao personDao) {this.name = name;this.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();//System.out.println(name);}}

juintest

[java] view plaincopy

1. package junit.test;  
2.   
3. import org.junit.Test;  
4. import org.springframework.context.ApplicationContext;  
5. import org.springframework.context.support.AbstractApplicationContext;  
6. import org.springframework.context.support.ClassPathXmlApplicationContext;  
7.   
8. import cn.service.imp.PersonServiceBean;  
9.   
10.   
11. public class SpringTest   
12. {  
13.     @Test   
14.     public void instanceSpring()  
15.     {  
16.         AbstractApplicationContext ctx=new ClassPathXmlApplicationContext(new String[]{"beans.xml"});  
17.         PersonServiceBean personServiceBean=(PersonServiceBean) ctx.getBean("personService");  
18.         personServiceBean.save();  
19.         ctx.close();  
20.     }  
21. }  

bean.xml

[html] view plaincopy

1. <?xml version="1.0" encoding="UTF-8"?>  
2. <beans xmlns="http://www.springframework.org/schema/beans"  
3.        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  
4.        xmlns:context="http://www.springframework.org/schema/context"  
5.        xsi:schemaLocation="http://www.springframework.org/schema/beans  
6.            http://www.springframework.org/schema/beans/spring-beans-2.5.xsd  
7.            http://www.springframework.org/schema/context  
8.            http://www.springframework.org/schema/context/spring-context-2.5.xsd">  
9.         <context:annotation-config></context:annotation-config>  
10.         <bean id="personDao" class="cn.dao.imp.PersonDao"></bean>  
11.         <bean id="personService" class="cn.service.imp.PersonServiceBean">  
12.         </bean>  
13.   
14. </beans>