温湿度查询

huimv-admin/src/main/resources/com/huimv/guowei/admin/mapper/EnvDataMapper.xml

@@ -19,7 +19,7 @@
     </resultMap>
 
     <select id="getLastFlow" resultType="com.huimv.guowei.admin.entity.vo.EnvDataVo">
-        SELECT d.env_temp, d.env_hum, b.id, b.build_name
+        SELECT DISTINCT d.env_temp, d.env_hum, b.id, b.build_name
         FROM base_building b
         LEFT OUTER JOIN (
             SELECT unit_id, env_temp, env_hum, create_time