重构

ems-system/src/main/resources/mapper/ems/EmsSiteMonitorPointMatchMapper.xml

@@ -4,6 +4,14 @@
         "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
 <mapper namespace="com.xzzn.ems.mapper.EmsSiteMonitorPointMatchMapper">
 
+    <select id="selectDistinctSiteIds" resultType="java.lang.String">
+        select distinct site_id
+        from ems_site_monitor_point_match
+        where site_id is not null
+          and site_id != ''
+        order by site_id asc
+    </select>
+
     <resultMap id="EmsSiteMonitorPointMatchResult" type="com.xzzn.ems.domain.EmsSiteMonitorPointMatch">
         <result property="id" column="id"/>
         <result property="siteId" column="site_id"/>