mybatis foreach标签使用

select * from table where id in (1,2,3)
where条件中带in的都可以使用foreach标签

<select id="getTeachers" resultMap="BaseResultMap">
    select
    <include refid="Base_Column_List" />
    from famous_teacher_recommend
    where category in
    <foreach collection="array" index="index" item="category" open="(" separator="," close=")">
      #{category}
    </foreach>
    ORDER BY category
</select>