如何在Java中使用依赖注入在没有构造函数的情况下在POJO类中注入多个值？

Question

我想在不使用构造函数的情况下使用依赖注入在POJO类中注入多个值。 我知道如何使用依赖注入在POJO类中仅注入一个实例值，但是当我选择多个值时，它给我一个错误。

User.java（pojo类）

package com.meet.Spring.Collections;

public class User {
    private String name;
    private int age;
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public int getAge() {
        return age;
    }
    public void setAge(int age) {
        this.age = age;
    }
    @Override
    public String toString() {
        return "User [name=" + name + ", age=" + age + "]";
    }

}

User.xml 它仅适用于一个实例，但是当我需要多个实例时，它不起作用

单实例（正常工作）

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
        xmlns:util="http://www.springframework.org/schema/util"
       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-3.0.xsd
          http://www.springframework.org/schema/util
          https://www.springframework.org/schema/util/spring-util-3.0.xsd">
             <bean id="user" name="someOtherInstance" class="com.meet.Spring.Collections.User">
                <property name="name">
                    <value>smit</value>
                </property>
                <property name="age">
                    <value>28</value>
                </property>
            </bean>
</beans>
**output** [name=smit, age=28]

多实例实例 无法正常工作

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
        xmlns:util="http://www.springframework.org/schema/util"
       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-3.0.xsd
          http://www.springframework.org/schema/util
          https://www.springframework.org/schema/util/spring-util-3.0.xsd">
             <bean id="user" name="someOtherInstance" class="com.meet.Spring.Collections.User">
                <property name="name">
                    <value>smit</value>
                </property>
                <property name="age">
                    <value>28</value>
                </property>
            </bean>
            <bean id="user1" name="user1" class="com.meet.Spring.Collections.User">
                <property name="name" >
                    <value>meet</value>
                </property>
                <property name="age" >
                    <value>18</value>
                </property>
            </bean>


</beans>

预期的输出 [名称= smit，年龄= 28]，[名称=会议，年龄= 18]

UserRun.java（主类）

package com.meet.Spring.Collections;

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

public class UserRun {
    public static void main(String args[]) {
        ApplicationContext context=new ClassPathXmlApplicationContext("User.xml");
        User u=(User)context.getBean("user");
        System.out.println(u.toString());
    }
}