snd-escloud/target/classes/mapper/build/ElectricReadDao.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="platform.modules.build.dao.ElectricReadDao">

    <select id="getElectricReadReadLast" resultType="platform.modules.build.entity.ElectricRead">
        select * from y_electric_read where electric_id=#{electric_id} order by record_id desc limit 0,1
    </select>
	
</mapper>