4S/target/classes/mapper/AiAlarmTypeMapper.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper
        PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.zhgd.scs.mapper.AiAlarmTypeMapper">

    <select id="getListByCameraId" resultType="com.zhgd.scs.domain.AiAlarmType">
        SELECT at.*
        FROM ai_alarm_type at
                 LEFT JOIN ai_camera_alarm_type_ref aatr ON at.id = aatr.type_id
        WHERE aatr.camera_id = #{id}
    </select>
</mapper>