package com.baobaotao;  
 
public class Boss {  
 private Car car;  
 private Office office;  
 
 // 省略 get/setter  
 
 @Override 
 public String toString() {  
  return "car:" + car + "/n" + "office:" + office;  
 }  
}

<?xml version="1.0" encoding="UTF-8" ?>  
<beans xmlns="http://www.springframework.org/schema/beans" 
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
 xsi:schemaLocation="http://www.springframework.org/schema/beans  
http://www.springframework.org/schema/beans/spring-beans-2.5.xsd">  
 <bean id="boss" class="com.baobaotao.Boss">  
  <property name="car" ref="car"/>  
  <property name="office" ref="office" />  
 </bean>  
 <bean id="office" class="com.baobaotao.Office">  
  <property name="officeNo" value="002"/>  
 </bean>  
 <bean id="car" class="com.baobaotao.Car" scope="singleton">  
  <property name="brand" value=" 红旗 CA72"/>  
  <property name="price" value="2000"/>  
 </bean>  
</beans>

import org.springframework.context.ApplicationContext;  
import org.springframework.context.support.ClassPathXmlApplicationContext;  
public class AnnoIoCTest {  
 
 public static void main(String[] args) {  
  String[] locations = {"beans.xml"};  
  ApplicationContext ctx =  
   new ClassPathXmlApplicationContext(locations);  
  Boss boss = (Boss) ctx.getBean("boss");  
  System.out.println(boss);  
 }  
}

<!-- 该 BeanPostProcessor 将自动对标注 @Autowired 的 Bean 进行注入 -->  
 <bean class="org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor"/>

package com.baobaotao;  
import org.springframework.beans.factory.annotation.Autowired;  
 
public class Boss {  
 
 @Autowired 
 private Car car;  
 
 @Autowired 
 private Office office;  
 
 …  
}

<?xml version="1.0" encoding="UTF-8" ?>  
<beans xmlns="http://www.springframework.org/schema/beans" 
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
 xsi:schemaLocation="http://www.springframework.org/schema/beans  
http://www.springframework.org/schema/beans/spring-beans-2.5.xsd">  
 
 <!-- 该 BeanPostProcessor 将自动起作用，对标注 @Autowired 的 Bean 进行自动注入 -->  
 <bean class="org.springframework.beans.factory.annotation.  
  AutowiredAnnotationBeanPostProcessor"/>  
 
 <!-- 移除 boss Bean 的属性注入配置的信息 -->  
 <bean id="boss" class="com.baobaotao.Boss"/>  
  
 <bean id="office" class="com.baobaotao.Office">  
  <property name="officeNo" value="001"/>  
 </bean>  
 <bean id="car" class="com.baobaotao.Car" scope="singleton">  
  <property name="brand" value=" 红旗 CA72"/>  
  <property name="price" value="2000"/>  
 </bean>  
</beans>

package com.baobaotao;  
 
public class Boss {  
 private Car car;  
 private Office office;  
 
  @Autowired 
 public void setCar(Car car) {  
  this.car = car;  
 }  
  
 @Autowired 
 public void setOffice(Office office) {  
  this.office = office;  
 }  
 …  
}

package com.baobaotao;  
 
public class Boss {  
 private Car car;  
 private Office office;  
 
  @Autowired 
 public void setCar(Car car) {  
  this.car = car;  
 }  
  
 @Autowired 
 public void setOffice(Office office) {  
  this.office = office;  
 }  
 …