数据空判断

于紫祥_1901

2020-12-01 636af927431b46a0788b7d76233387923135ac0c

 src/main/resources/mapper/AlarmMapper.xml

@@ -1,79 +1,46 @@
<?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.moral.mapper.AlarmMapper">

   <select id="getAlarmData" resultType="java.util.LinkedHashMap">

      SELECT

         <if test="dimension=='monitorPoint'">

            `name`,

         </if>

         <choose>

            <when test="sensorKeys.size > 0">

               <foreach collection="sensorKeys" separator="," item="sensorKey">

                  SUM( ${sensorKey} ) AS '${sensorKey}'

               </foreach>

               <foreach collection="sensorKeys" open="," separator="+" close=" AS 'sum' " item="sensorKey">

                  SUM( ${sensorKey} )

               </foreach>

            </when>

            <otherwise>

               time

            </otherwise>

         </choose>

      FROM

         (

            SELECT 
               <if test="dimension=='monitorPoint'">

                  mp.`name`,

               </if>

               <choose>

                  <when test="sensorKeys.size > 0">

                     <foreach collection="sensorKeys" separator="," item="sensorKey">

                        CASE COUNT( json -> '$.${sensorKey}' ) WHEN 0 THEN 0 ELSE 1 END AS '${sensorKey}'

                     </foreach>

                  </when>

                  <otherwise>

                     DATE_FORMAT( h.time, '%Y-%m-%d' ) AS 'time'

                  </otherwise>

               </choose>

            FROM

               alarm h, 
               device d,

               monitor_point mp 
            WHERE d.monitor_point_id = mp.id 
               AND h.mac = d.mac 
               AND h.time >= #{start}

               AND h.time <![CDATA[<]]> #{end}

               <if test="provinceCode != null">

               AND mp.province_code = #{provinceCode}

               </if>

               <if test="cityCode != null">

               AND mp.city_code = #{cityCode}

               </if>

               <if test="areaCode != null">

               AND mp.area_code = #{areaCode}

               </if>

               <if test="monitorPointId != null">

               AND mp.id =   #{monitorPointId}

               </if>

               <if test="organizationId != null">

               AND mp.organization_id = #{organizationId}

               </if>

               <if test="mac != null">

               AND d.mac =   #{mac}

               </if>

               <if test="level != null">

               AND h.state = #{level}

               </if>

            GROUP BY

               <if test="dimension=='monitorPoint'">

                  mp.id,

               </if>

               DATE_FORMAT( h.time, '%Y-%m-%d' )

         ) a

      <if test="dimension=='monitorPoint'">

         GROUP BY name

      </if>

			
   </select>

	
    <select id="countByTimes" resultType="java.util.Map">

        select

        <if test="format !=null">

            DATE_FORMAT(a.time,#{format}) as time,

        </if>

        count(*) as count

        from

        (<foreach collection="list" item="item" separator="union">

        select

        * from

        alarm_${item}

    </foreach>) as a

        where

        a.time >= #{start}

        and a.time

        <![CDATA[<=]]> #{end}

        <if test="format !=null">

            GROUP BY DATE_FORMAT(a.time,#{format}) ;

        </if>

    </select>



    <!--  <select id="countByTimes"   resultType="java.util.Map">

          select

          <if test="format !=null">

              DATE_FORMAT(time,#{format}) as time,

          </if>

          COUNT(*) as count from alarm

          <where>

              <if test="start != null">

                  time >= #{start}

              </if>

              <if test="end != null">

                  and time

                  <![CDATA[

                  <=

                  ]]> #{end}

              </if>

          </where>

          <if test="format !=null">

              GROUP BY DATE_FORMAT(time,#{format}) ;

          </if>

      </select>-->

</mapper>