gasWellWatch/src/main/resources/mapper/DeviceDao.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.isu.gaswellwatch.dao.DeviceDao">

    <resultMap id="DeviceVOMap" type="com.isu.gaswellwatch.vo.DeviceVO">
        <id column="id" property="id"/>
        <result column="code" property="code"/>
        <result column="gas_station" property="gasStation"/>
        <result column="gateway_sn" property="gatewaySn"/>
        <result column="details" property="details"/>
        <result column="create_time" property="createTime"/>
        <result column="update_time" property="updateTime"/>
        <association property="deviceType" javaType="com.isu.gaswellwatch.entity.Dictionary" select="getDic" column="device_type">
        </association>
        <association property="product" javaType="com.isu.gaswellwatch.entity.Dictionary" select="getDic" column="product">
        </association>
        <association property="gasWell"  javaType="com.isu.gaswellwatch.entity.GasWell" >
            <id column="gasWellId" property="id"/>
            <result column="gasWellName" property="name"/>
        </association>
    </resultMap>

    <resultMap id="DeviceMap" type="com.isu.gaswellwatch.entity.Device" autoMapping="true">
        <id column="id" property="id"/>
        <result column="code" property="code"/>
        <result column="gas_station" property="gasStation"/>
        <result column="gateway_sn" property="gatewaySn"/>
        <result column="details" property="details"/>
        <result column="create_time" property="createTime"/>
        <result column="update_time" property="updateTime"/>
        <result property="deviceType" column="device_type"/>
        <result property="product"  column="product"/>
        <result property="gasWell"  column="gas_well"/>
    </resultMap>

    <select id="page" resultMap="DeviceVOMap">
        select  u.id, u.device_type, u.code, u.gas_station, u.product, u.gateway_sn,
        u.gas_well, u.details, u.create_time, u.update_time,g.name as gasWellName,g.id as gasWellId
        from device u left join gas_well g on u.gas_well = g.id
        <where>
            <if test="gasWellName!=null and gasWellName!='' ">
                and g.name LIKE CONCAT('%',#{gasWellName},'%')
            </if>
            <if test="gasStationName!=null and gasStationName!='' ">
                and u.gas_station LIKE CONCAT('%',#{gasStationName},'%')
            </if>
            <if test="deviceTypeId!=null and deviceTypeId!='' ">
                and u.device_type = #{deviceTypeId}
            </if>
        </where>
        order by u.id desc
    </select>

    <select id="getDic" parameterType="java.lang.Long" resultType="com.isu.gaswellwatch.entity.Dictionary">
        SELECT d.id,d.type,d.code,d.name,d.value,d.sort
        FROM Dictionary d
        where d.id=#{dicId}
    </select>

    <select id="getDeviceById" resultMap="DeviceVOMap">
        select  u.id, u.device_type, u.code, u.gas_station, u.product, u.gateway_sn,
                u.gas_well, u.details, u.create_time, u.update_time,g.name as gasWellName,g.id as gasWellId
        from device u left join gas_well g on u.gas_well = g.id
        where u.id = #{id}
    </select>

</mapper>