MyBatis查Java优学网关联查询实战：快速掌握一对一、一对多映射技巧

<result property="title" column="title"/>
<!-- 一对一：讲师信息 -->
<association property="instructor" javaType="Instructor">
    <id property="id" column="instructor_id"/>
    <result property="name" column="instructor_name"/>
</association>
<!-- 一对多：章节列表 -->
<collection property="chapters" ofType="Chapter">
    <id property="id" column="chapter_id"/>
    <result property="title" column="chapter_title"/>
</collection>
<!-- 一对多：学生评价 -->
<collection property="reviews" ofType="Review">
    <id property="id" column="review_id"/>
    <result property="content" column="review_content"/>
</collection>