2-3 注解和配置文件的混合使用

具体代码实现

配置文件  bean2.xml

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1. <?xml version="1.0" encoding="UTF-8"?>  
2.   
3. <beans xmlns="http://www.springframework.org/schema/beans"  
4.     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  
5.     xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation="  
6.         http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd  
7.         http://www.springframework.org/schema/context  http://www.springframework.org/schema/context/spring-context.xsd">  
8. <!-- 开启注解扫描 (1) 到包里面扫描类 方法 属性上面是否有注解 -->  
9.   <context:component-scan base-package="com.cn.anno"></context:component-scan>  
10.    
11.  <!-- 配置对象 -->  
12.    <bean id="bookService" class="com.cn.xmlanno.BookService"></bean>  
13.    <bean id="bookDao" class="com.cn.xmlanno.BookDao"></bean>  
14.    <bean id="orderDao" class="com.cn.xmlanno.OrderDao"></bean>  
15.      
16.   
17. <strong><span style="font-size:18px;"></beans>  
18. </span></strong>  

BookDao.java

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1. package com.cn.xmlanno;  
2.   
3. public class BookDao {  
4.     public void book(){  
5.         System.out.println("booksdao......");  
6.     }  
7. }  

OrderDao.java

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1. package com.cn.xmlanno;  
2.   
3. public class OrderDao {  
4.     public void buy(){  
5.         System.out.println("ordersdao......");  
6.     }  
7. }  

BookService.java

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1. package com.cn.xmlanno;  
2.   
3. import javax.annotation.Resource;  
4.   
5. public class BookService {  
6.     //得到bookdao和ordersdao对象  
7.     @Resource(name="bookDao")  
8.     private BookDao  bookDao;  
9.     @Resource(name="orderDao")  
10.     private OrderDao  orderDao;  
11.     public void add(){  
12.         System.out.println("service......");  
13.         bookDao.book();  
14.         orderDao.buy();  
15.     }  
16. }  

测试类TestAnno.java

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1. package com.cn.xmlanno;  
2.   
3. import org.junit.Test;  
4. import org.springframework.context.ApplicationContext;  
5. import org.springframework.context.support.ClassPathXmlApplicationContext;  
6.   
7. public class TestAnno {  
8.   
9.     @Test  
10.     public void testService(){  
11.         ApplicationContext context=  
12.                 new ClassPathXmlApplicationContext("bean2.xml");  
13.         BookService book=(BookService) context.getBean("bookService");  
14.         book.add();  
15.     }  
16. }  

测试结果