<?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
        https://www.springframework.org/schema/beans/spring-beans.xsd">
        
    <bean id="pencilCase" class="com.imooc.spring.ioc.entity.Pen">
        <property name="name" value="铅笔"/>
    </bean>
    <bean id="schoolBag" class="com.imooc.spring.ioc.entity.SchoolBag">
        <property name="color" value="红色"/>
        <property name="pencilCase">
            <list>
                <ref bean="pencilCase"/>
            </list>
        </property>
    </bean>

</beans>

package com.imooc.spring.ioc.entity;


import java.util.List;

public class SchoolBag {
    private String color;
    private List<Pen> pencilCase;

    public SchoolBag() {
    }

    public SchoolBag(String color, List<Pen> pencilCase) {
        this.color = color;
        this.pencilCase = pencilCase;
    }

    public String getColor() {
        return color;
    }

    public void setColor(String color) {
        this.color = color;
    }

    public List<Pen> getPencilCase() {
        return pencilCase;
    }

    public void setPencilCase(List<Pen> pencilCase) {
        this.pencilCase = pencilCase;
    }
}

package com.imooc.spring.ioc.entity;

public class Pen {
    private String name;

    public String getName() {
        return name;
    }

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

package com.imooc.spring.ioc;

import com.imooc.spring.ioc.entity.Company;
import com.imooc.spring.ioc.entity.SchoolBag;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class SpringApplication {
    public static void main(String[] args) {
        ApplicationContext context = new ClassPathXmlApplicationContext("classpath:applicationContext.xml");
//        Company company = context.getBean("company", Company.class);
//        System.out.println(company);

        SchoolBag schoolBag = context.getBean("schoolBag", SchoolBag.class);
        System.out.println(schoolBag);
    }
}

老师帮忙看看