根据名称自动装配

applicationContext-beans.xml

引用

<?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:aop="http://www.springframework.org/schema/aop"
     xmlns:tx="http://www.springframework.org/schema/tx"
     xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd
           http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd
           http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.0.xsd"
           default-autowire="byName"
           >

<!--
<bean id="bean2" class="com.bjsxt.spring.Bean2">
<property name="bean3" ref="bean3"/>
<property name="bean4">
<ref bean="bean4"/>
</property>
<property name="bean5" ref="bean5"/>
</bean>
-->

<bean id="bean2" class="com.bjsxt.spring.Bean2"/>

<bean id="bean5" class="com.bjsxt.spring.Bean5">
<property name="age" value="20"/>
</bean>
</beans>

applicationContext-other.xml

引用

<?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:aop="http://www.springframework.org/schema/aop"
     xmlns:tx="http://www.springframework.org/schema/tx"
     xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd
           http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd
           http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.0.xsd">
  
   <bean id="beanAbstract" abstract="true">
   <property name="id" value="1000"/>
   <property name="name" value="Jack"/>
   </bean>        
  
   <bean id="bean3" class="com.bjsxt.spring.Bean3" parent="beanAbstract">
   <property name="name" value="Tom"/>
   <property name="password" value="123"/>
   </bean>       
  
   <bean id="bean4" class="com.bjsxt.spring.Bean4" parent="beanAbstract"/>
</beans>

AutowireTest.java

package com.bjsxt.spring;

import org.springframework.beans.factory.BeanFactory;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import junit.framework.TestCase;

public class AutowireTest extends TestCase {
	
	private BeanFactory factory;
	
	@Override
	protected void setUp() throws Exception {
		factory = new ClassPathXmlApplicationContext("applicationContext-*.xml");	
	}

	public void testAutowire() {
		Bean2 bean2 = (Bean2)factory.getBean("bean2");
		System.out.println("bean2.bean3.id=" + bean2.getBean3().getId());
		System.out.println("bean2.bean3.name=" + bean2.getBean3().getName());
		System.out.println("bean2.bean3.password=" + bean2.getBean3().getPassword());
		System.out.println("bean2.bean4.id=" + bean2.getBean4().getId());
		System.out.println("bean2.bean4.name=" + bean2.getBean4().getName());
		System.out.println("bean2.bean5.age=" + bean2.getBean5().getAge());
	}
	
}