package com.zking.spring01_1.pojo;

/**
 * 
* @ClassName: Person
* @Description: Person对象实体类
* @author 夏
* @date 2018年9月17日 下午6:47:50
*
 */
public class Person {
	
	private String pid;
	private String pname;
	private Card card;
	
	
	public Card getCard() {
		return card;
	}
	public void setCard(Card card) {
		this.card = card;
	}
	public String getPid() {
		return pid;
	}
	public void setPid(String pid) {
		this.pid = pid;
	}
	public String getPname() {
		return pname;
	}
	public void setPname(String pname) {
		this.pname = pname;
	}
	public Person(String pid, String pname) {
		super();
		this.pid = pid;
		this.pname = pname;
	}
	public Person() {
		super();
		// TODO Auto-generated constructor stub
	}
	@Override
	public String toString() {
		return "Person [pid=" + pid + ", pname=" + pname + "]";
	}
	
	
	

}


-------------------------------------------------------------------------------
package com.zking.spring01_1.pojo;

/**
 * 
* @ClassName: Card
* @Description: Card对象实体类
* @author 夏
* @date 2018年9月17日 下午8:29:13
*
 */
public class Card {
	
	private String cid;
	private String cname;
	public String getCid() {
		return cid;
	}
	public void setCid(String cid) {
		this.cid = cid;
	}
	public String getCname() {
		return cname;
	}
	public void setCname(String cname) {
		this.cname = cname;
	}
	public Card(String cid, String cname) {
		super();
		this.cid = cid;
		this.cname = cname;
	}
	public Card() {
		super();
		// TODO Auto-generated constructor stub
	}
	@Override
	public String toString() {
		return "Card [cid=" + cid + ", cname=" + cname + "]";
	}
	
	

}

bean.xml

<?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:util="http://www.springframework.org/schema/util"
	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
		http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.3.xsd
		http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.3.xsd">


<!-- ref -->
<bean id="personref" class="com.zking.spring01_1.pojo.Person" scope="prototype">
<property name="card">     
<ref bean="card01"/>     <!-- 引用bean对象card01-->
</property>
</bean>



<!-- idref -->
<bean id="personidref" class="com.zking.spring01_1.pojo.Person" scope="prototype">
<property name="pname">     
<idref bean="card01"/>     <!-- 引用bean对象card01 -->
</property>
</bean>



<!-- 创建一个bean -->
<bean id="card01" class="com.zking.spring01_1.pojo.Card">
<property name="cid" value="cid001"></property>
<property name="cname" value="cname001"></property>
</bean>




</beans>

测试类：

package com.zking.spring01_1.action;

import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.zking.spring01_1.pojo.Person;


/**
 * 
* @ClassName: PersonAction
* @Description: 测试类
* @author 夏
* @date 2018年9月17日 下午6:48:05
*
 */
public class PersonAction {
	
	
	@Test
	public  void createBean() {
		//静态方法注入bean
		ApplicationContext act=new ClassPathXmlApplicationContext("bean.xml");
		//ref引用bean对象
		Person personref=(Person) act.getBean("personref");
		System.out.println("ref:"+personref.getCard());
		//idref 引用  
		Person personidref=(Person) act.getBean("personidref");
		System.out.println("idref:"+personidref.getPname());
	
	}
	
	

}

结果：

由此可得：

ref引用的是bean对象，而idref引用的只是bean对象的name也就是这里的id而不是bean实例，同时使用idref容器在部署的时候还会验证这个名称的bean是否真实存在。其实idref就跟value一样，如果我们只需要传递bean的name的话，用idref，若引用bean实例用ref