证明spring中<property name="">这个双引号的内容只与setter方法有关，与一个类定义的字段和getter方法无关

证明如下：

思路定义两个实体类每个实体类的成员变量（字段）名和setter 和getter的名字都不一样：

原因是：bean的声明周期的原因：有一步是：注入属性。

其中一个类引用了另一个类。

被引用类的Address的代码如下：

 package com.timo.domain;

 public class Address {
     private String city6;
     private String state3;

     public String getCity4() {
         return city6;
     }

     public void setCity(String city) {
         this.city6 = city;
     }

     public String getState2() {
         return state3;
     }

     public void setState(String state) {
         this.state3 = state;
     }
 }

引用类Student的代码如下：

 package com.timo.domain;

 public class Student {
     private Integer age;
     private String name;
     private Address address;

     public Integer getAge2() {
         return age;
     }

     public void setAge(Integer age) {
         this.age = age;
     }

     public String getName2() {
         return name;
     }

     public void setName(String name) {
         this.name = name;
     }

     public Address getAddress() {
         return address;
     }

     public void setAddress(Address address) {
         this.address = address;
     }

     @Override
     public String toString() {
         return "Student{" +
                 "age=" + age +
                 ", name='" + name + '\'' +
                 ", address=" + address +
                 '}';
     }
 }

配置文件.xml的代码如下：

 <?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.xsd">

     <bean id="address" class="com.timo.domain.Address">
         <!-- collaborators and configuration for this bean go here -->
         <property name="city" value="合肥市"/>
         <property name="state" value="安徽省"/>
     </bean>

     <bean id="student" class="com.timo.domain.Student">
         <!-- collaborators and configuration for this bean go here -->
         <property name="address" ref="address"/>
         <property name="age" value=""/>
         <property name="name" value="欧阳凤"/>
       </bean>

     <!-- more bean definitions go here -->

 </beans>

测试类Test的代码如下：

package com.timo.test;

import com.timo.domain.Student;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class Test {
    public static void main(String[] args) {
        ClassPathXmlApplicationContext applicationContext = new ClassPathXmlApplicationContext("applicationContext.xml");
        String city = applicationContext.getBean(Student.class).getAddress().getCity4();
        System.out.println("she inhabit in :"+city);
    }
}