1. <!--创建多个 course 对象-->
    2. <bean id="course1" class="com.atguigu.spring5.collectiontype.Course">
    3. <property name="cname" value="Spring5 框架"></property>
    4. </bean>
    5. <bean id="course2" class="com.atguigu.spring5.collectiontype.Course">
    6. <property name="cname" value="MyBatis 框架"></property>
    7. </bean>
    8. <!--注入 list 集合类型,值是对象-->
    9. <property name="courseList">
    10. <list>
    11. <ref bean="course1"></ref>
    12. <ref bean="course2"></ref>
    13. </list>
    14. </property>