Wisdom-Data/iot-platform/src/main/resources/mapper/SysDeviceMapper.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.iot.platform.mapper.SysDeviceMapper">
    <!-- 通用查询映射结果 -->
    <resultMap id="BaseResultMap" type="com.iot.platform.domain.SysDevice">
        <result column="createTime" property="createTime"/>
        <result column="deviceId" property="deviceId"/>
        <result column="timestamp" property="timestamp"/>
        <result column="k" property="k"/>
        <result column="v" property="v"/>
    </resultMap>

    <select id="selectSysDevice" resultMap="BaseResultMap">
        select v from `${tableName}` where k=#{k}
    </select>
</mapper>