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/spring_0004_bean的注入方法/src/com/b510/dao/AnimaleDao.java
1 package com.b510.dao;
2 /**
3 * 动物抽象类
4 * @author Hongten
5 *
6  */
7 public interface AnimaleDao {
8
9     /**
10      * 动物的say()方法
11 */
12     public abstract void say();
13
14 }
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/spring_0004_bean的注入方法/src/com/b510/dao/impl/DogDaoImpl.java
1 package com.b510.dao.impl;
2
3 import com.b510.dao.AnimaleDao;
4
5
6 public class DogDaoImpl implements AnimaleDao {
7
8     private String name;
9     
10     public String getName() {
11         return name;
12     }
13
14     public void setName(String name) {
15         this.name = name;
16     }
17
18     /* (non-Javadoc)
19      * @see com.b510.dao.impl.AnimaleDao#say()
20 */
21     public void say(){
22         System.out.println(name+" is a dog,he likes bone");
23     }
24 }
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/spring_0004_bean的注入方法/src/com/b510/service/ServiceBean.java
1 package com.b510.service;
2
3 /**
4 * ServiceBean接口
5 *
6 * @author Hongten
7 *
8  */
9 public interface ServiceBean {
10
11     /**
12      * 输出相关信息
13 */
14     public abstract void myPetSay();
15
16 }
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/spring_0004_bean的注入方法/src/com/b510/service/impl/ServiceBeanImpl.java
1 package com.b510.service.impl;
2
3 import com.b510.dao.AnimaleDao;
4 import com.b510.service.ServiceBean;
5 /**
6 * ServiceBean的一个实现类
7 *
8 * @author Hongten
9 *
10  */
11 public class ServiceBeanImpl implements ServiceBean {
12
13     private AnimaleDao animaleDao;
14     
15     /* (non-Javadoc)
16      * @see com.b510.service.impl.ServiceBean#myPetSay()
17 */
18     public void myPetSay(){
19         animaleDao.say();
20     }
21
22     public AnimaleDao getAnimaleDao() {
23         return animaleDao;
24     }
25
26     /**
27      * 设置一个AnimaleDao构造函数，Spring在注入的时候，就是调用此方法进行构造注入的
28      * 所以在使用构造注入的时候，一定要有此构造函数
29      * @param animaleDao AnimaleDao的一个实例
30 */
31     public void setAnimaleDao(AnimaleDao animaleDao) {
32         this.animaleDao = animaleDao;
33     }
34 }
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/spring_0004_bean的注入方法/src/beans.xml
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     xsi:schemaLocation="http://www.springframework.org/schema/beans
5            http://www.springframework.org/schema/beans/spring-beans-2.5.xsd">
6     <bean id="animaleDao" class="com.b510.dao.impl.DogDaoImpl">
7         <property name="name" value="哈巴"></property>
8     </bean>
9     <bean id="serviceDao" class="com.b510.service.impl.ServiceBeanImpl">
10         <property name="animaleDao" ref="animaleDao"></property>
11     </bean>
12 </beans>
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/spring_0004_bean的注入方法/src/com/b510/test/SpringTest.java
1 package com.b510.test;
2
3 import org.springframework.context.ApplicationContext;
4 import org.springframework.context.support.ClassPathXmlApplicationContext;
5
6 import com.b510.service.ServiceBean;
7
8 public class SpringTest {
9     public static void main(String[] args) {
10         ApplicationContext ctx=new ClassPathXmlApplicationContext("beans.xml");
11         ServiceBean serviceBean=(ServiceBean) ctx.getBean("serviceDao");
12         serviceBean.myPetSay();
13     }
14 }
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运行效果：
1 2012-3-7 23:34:52 org.springframework.context.support.AbstractApplicationContext prepareRefresh
2 信息: Refreshing org.springframework.context.support.ClassPathXmlApplicationContext@15eb0a9: display name [org.springframework.context.support.ClassPathXmlApplicationContext@15eb0a9]; startup date [Wed Mar 07 23:34:52 CST 2012]; root of context hierarchy
3 2012-3-7 23:34:52 org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions
4 信息: Loading XML bean definitions from class path resource [beans.xml]
5 2012-3-7 23:34:52 org.springframework.context.support.AbstractApplicationContext obtainFreshBeanFactory
6 信息: Bean factory for application context [org.springframework.context.support.ClassPathXmlApplicationContext@15eb0a9]: org.springframework.beans.factory.support.DefaultListableBeanFactory@161f10f
7 2012-3-7 23:34:52 org.springframework.beans.factory.support.DefaultListableBeanFactory preInstantiateSingletons
8 信息: Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@161f10f: defining beans [animaleDao,serviceDao]; root of factory hierarchy
9 哈巴 is a dog,he likes bone
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