11.1新建一外来类User的实体类;
 package com.eduask.entity2;
 public class User3 {
 private int id;
 private String name;
 private String pwd;
 public int getId() {
 return id;
 }
 public void setId(int id) {
 this.id = id;
 }
 public String getName() {
 return name;
 }
 public void setName(String name) {
 this.name = name;
 }
 public String getPwd() {
 return pwd;
 }
 public void setPwd(String pwd) {
 this.pwd = pwd;
 }
 @Override
 public String toString() {
 return "User3 [id=" + id + ", name=" + name + ", pwd=" + pwd + "]";
 }
 public User3(int id, String name, String pwd) {
 super();
 this.id = id;
 this.name = name;
 this.pwd = pwd;
 }
 public User3() {
 super();
 // TODO Auto-generated constructor stub
 }
 }
 11.2新建一个Demo3的实体类;
 package com.eduask.entity2;
 public class Demo3 {
 private int id;
 private String name;
 private String pwd;
 private User3 user3;
 public int getId() {
 return id;
 }
 public void setId(int id) {
 this.id = id;
 }
 public String getName() {
 return name;
 }
 public void setName(String name) {
 this.name = name;
 }
 public String getPwd() {
 return pwd;
 }
 public void setPwd(String pwd) {
 this.pwd = pwd;
 }
 public User3 getUser3() {
 return user3;
 }
 public void setUser3(User3 user3) {
 this.user3 = user3;
 }
 @Override
 public String toString() {
 return "Demo3 [id=" + id + ", name=" + name + ", pwd=" + pwd + "]\n"+ user3 + "";
 }
 public Demo3(int id, String name, String pwd, User3 user3) {
 super();
 this.id = id;
 this.name = name;
 this.pwd = pwd;
 this.user3 = user3;
 }
 public Demo3() {
 super();
 // TODO Auto-generated constructor stub
 }
 }
 11.3新建一个TestDemo3的测试类;
 package com.eduask.entity2;
 import org.springframework.context.support.ClassPathXmlApplicationContext;
 public class TestDemo3 {
 public static void main(String[] args) {
 ClassPathXmlApplicationContext cx=new ClassPathXmlApplicationContext("entity2Xml/demo3.xml");
 Demo3 demo3=(Demo3) cx.getBean("demo3");
 System.out.println(demo3);
 }
 }
 11.4 新建一个demo3.xml的配置文件;
 <?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:p="http://www.springframework.org/schema/p"   xsi:schemaLocation="http://www.springframework.org/schema/beans    http://www.springframework.org/schema/beans/spring-beans.xsd
    " >
 <bean id="user3" class="com.eduask.entity2.User3" p:id="002" p:name="tom" p:pwd="123456"></bean>
 <bean id="demo3" class="com.eduask.entity2.Demo3" p:id="001" p:name="link" p:pwd="123456" autowire=" byType" depends-on="user3"/>
 </beans>
 11.5 程序运行如下:
 Demo3 [id=1, name=link, pwd=123456]
 User3 [id=2, name=tom, pwd=123456]