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工程结构：





Stu学生类：

/**
 * @Author Dali
 * @Date 2021/5/4 13:19
 * @Version 1.0
 * @Description
 */
public class Stu {
  
    //学生所学的多们课程
    private List<Course> coursesList;   //TODO 在集合里面设置对象类型值
    
    public void setCoursesList(List<Course> coursesList) {
        this.coursesList = coursesList;
    }

    public void test() {
        System.out.println(coursesList);
    }

}

package com.youliao.spring5.collertiontype;

/**
 * @Author Dali
 * @Date 2021/5/4 14:38
 * @Version 1.0
 * @Description
 */
public class Course {
    private String cname;   //课程名称

    public void setCname(String cname) {
        this.cname = cname;
    }

    @Override
    public String toString() {
        return "Course{" +
                "cname='" + cname + '\'' +
                '}';
    }
}

集合里面设置对象类型值，通过bean1.xml进行管理

<?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: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/util https://www.springframework.org/schema/util/spring-util.xsd">
    <!--1、集合类型的属性注入-->
    <bean id="stu" class="com.youliao.spring5.collertiontype.Stu"> 
        <!--注入List集合类型。值是对象-->
        <property name="coursesList">
            <list>
                <ref bean="course1"></ref>
                <ref bean="course2"></ref>
            </list>
        </property>
    </bean>
    <!--创建多个course对象-->
    <bean id="course1" class="com.youliao.spring5.collertiontype.Course">
        <property name="cname" value="Spring5框架"></property>
    </bean>

    <bean id="course2" class="com.youliao.spring5.collertiontype.Course">
        <property name="cname" value="VUE框架"></property>
    </bean>
</beans>

TestSpring5Demo1测试类：

public class TestSpring5Demo1 {
    @Test
    public void testCollection() {
        //1 加载 spring 配置文件
        ApplicationContext context = new ClassPathXmlApplicationContext("bean1.xml");
        //2 获取配置创建的对象
        Stu stu = context.getBean("stu", Stu.class);
        stu.test();
    }
}

输出结果：