ihotel-backend/target/classes/mapper/ihotel/HotelFingerprintDao.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.chuanghai.ihotel.dao.HotelFingerprintDao">
	<!-- 可根据自己的需求，是否要使用 -->
    <resultMap type="com.chuanghai.ihotel.entity.HotelFingerprintEntity" id="hotelFingerprintMap">
        <result property="id" column="id"/>
        <result property="fingerprintNumber" column="fingerprint_number"/>
        <result property="roomNo" column="room_no"/>
        <result property="holderName" column="holder_name"/>
        <result property="userType" column="user_type"/>
        <result property="takeTime" column="take_time"/>
        <result property="failureTime" column="failure_time"/>
        <result property="createTime" column="create_time"/>
        <result property="statu" column="statu"/>
    </resultMap>

    <resultMap type="com.chuanghai.ihotel.vo.HotelLockIdVO" id="hotelLockIdMap">
        <result property="lockUserId" column="lock_user_id"/>
        <result property="lockId" column="lock_id"/>
    </resultMap>

    <select id="queryHotelLockId" resultType="com.chuanghai.ihotel.vo.HotelLockIdVO" resultMap="hotelLockIdMap">
        SELECT a.lock_user_id,rts.lock_id FROM (SELECT r.id,hi.lock_user_id
        FROM hotel_fingerprint hi
        LEFT JOIN room r ON hi.room_no = r.room_no
        <where>
            <if test="id != null and id != ''">
                and hi.id = #{id}
            </if>
        </where>) a
        LEFT JOIN room_third_setting rts ON a.id = rts.room_id
    </select>
</mapper>