ylrz_saas_his_scrm/fs-service/src/main/resources/mapper/watch/WatchCompanyMapper.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.fs.watch.mapper.WatchCompanyMapper">

    <resultMap type="WatchCompany" id="WatchCompanyResult">
        <result property="deviceId"    column="device_id"    />
        <result property="companyId"    column="company_id"    />
    </resultMap>

    <sql id="selectWatchCompanyVo">
        select device_id, company_id from watch_company
    </sql>

    <select id="selectWatchCompanyList" parameterType="WatchCompany" resultMap="WatchCompanyResult">
        <include refid="selectWatchCompanyVo"/>
        <where>
            <if test="deviceId != null "> and device_id = #{deviceId}</if>
            <if test="companyId != null "> and company_id = #{companyId}</if>
        </where>
    </select>

    <select id="selectWatchCompanyById" parameterType="Long" resultMap="WatchCompanyResult">
        <include refid="selectWatchCompanyVo"/>
        where id = #{id}
    </select>

    <insert id="insertWatchCompany" parameterType="WatchCompany">
        insert into watch_company
        <trim prefix="(" suffix=")" suffixOverrides=",">

            <if test="deviceId != null">device_id,</if>
            <if test="companyId != null">company_id,</if>
         </trim>
        <trim prefix="values (" suffix=")" suffixOverrides=",">

            <if test="deviceId != null">#{deviceId},</if>
            <if test="companyId != null">#{companyId},</if>
         </trim>
    </insert>

    <insert id="insertBatchWatchCompany">
        INSERT INTO watch_company (device_id, company_id)
        SELECT device_id, company_id
        FROM (
        <foreach collection="list" separator="UNION ALL" item="watchCompany">
            SELECT #{watchCompany.deviceId,jdbcType=BIGINT} AS device_id,
            #{watchCompany.companyId,jdbcType=BIGINT} AS company_id
        </foreach>
        ) AS new_records
        WHERE NOT EXISTS (
        SELECT 1
        FROM watch_company wc
        WHERE wc.device_id = new_records.device_id
        AND wc.company_id = new_records.company_id
        )
    </insert>


    <delete id="deleteBatch">
        delete from watch_company where device_id = #{deviceId} and company_id in
        <foreach item="id" collection="list" open="(" separator="," close=")">
            #{id}
        </foreach>
    </delete>
</mapper>