add(record): 添加物联网实时分组最新数据查询功能

- 在 ITWTempertureDataService 接口中添加 selectLastTWTempertureDataList 方法- 在 TWTempertureDataController 中添加 selectLastTWTempertureDataList 控制器方法
- 在 TWTempertureDataMapper 接口中添加 selectLastTWTempertureDataList 方法
- 在 TWTempertureDataMapper.xml 中添加 selectLastTWTempertureDataList 的 SQL 查询语句- 在 TWTempertureDataServiceImpl 中实现 selectLastTWTempertureDataList 方法

该功能允许用户查询物联网实时分组最新数据列表，即每个监控点的最新一条记录。

os-ems/src/main/java/com/os/ems/record/controller/TWTempertureDataController.java

@@ -182,4 +182,16 @@ public class TWTempertureDataController extends BaseController
     {
         return toAjax(tWTempertureDataService.deleteTWTempertureDataByObjids(objids));
     }
+
+    /**
+     * 查询物联网实时分组数据列表
+     */
+    @PreAuthorize("@ss.hasPermi('ems/record:recordIOTInstant:list')")
+    @PostMapping("/selectLastTWTempertureDataList")
+    public TableDataInfo selectLastTWTempertureDataList(TWTempertureData tWTempertureData)
+    {
+        List<TWTempertureData> list = tWTempertureDataService.selectLastTWTempertureDataList(tWTempertureData);
+        return getDataTable(list);
+    }
+
 }

os-ems/src/main/java/com/os/ems/record/mapper/TWTempertureDataMapper.java

@@ -72,4 +72,11 @@ public interface TWTempertureDataMapper
      * @return
      */
     TWTempertureData selectIotInstantMinitoringData(String monitorId);
+
+    /**
+     * 查询物联网实时数据
+     * @param tWTempertureData
+     * @return
+     */
+    List<TWTempertureData> selectLastTWTempertureDataList(TWTempertureData tWTempertureData);
 }

os-ems/src/main/java/com/os/ems/record/service/ITWTempertureDataService.java

@@ -72,4 +72,11 @@ public interface ITWTempertureDataService
      * @return
      */
     TWTempertureData selectIotInstantMinitoringData(String monitorId);
+
+    /**
+     * 查询物联网实时分组数据列表
+     * @param tWTempertureData
+     * @return
+     */
+    List<TWTempertureData> selectLastTWTempertureDataList(TWTempertureData tWTempertureData);
 }

os-ems/src/main/java/com/os/ems/record/service/impl/TWTempertureDataServiceImpl.java

@@ -110,4 +110,14 @@ public class TWTempertureDataServiceImpl implements ITWTempertureDataService
     public TWTempertureData selectIotInstantMinitoringData(String monitorId) {
         return tWTempertureDataMapper.selectIotInstantMinitoringData(monitorId);
     }
+
+    /**
+     * 查询物联网实时分组数据列表
+     * @param tWTempertureData
+     * @return
+     */
+    public List<TWTempertureData> selectLastTWTempertureDataList(TWTempertureData tWTempertureData) {
+        // 按monitorName分组并获取每个分组的最新记录
+        return tWTempertureDataMapper.selectLastTWTempertureDataList(tWTempertureData);
+    }
 }

os-ems/src/main/resources/mapper/ems/record/TWTempertureDataMapper.xml

@@ -148,4 +148,17 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
             #{objid}
         </foreach>
     </delete>
+
+    <select id="selectLastTWTempertureDataList" parameterType="TWTempertureData" resultMap="TWTempertureDataResult">
+
+        SELECT twtd.*,ebmi.monitor_name
+        FROM (
+            select *,
+                   row_number() over(partition by monitorId order by recodeTime desc) as rownum
+            from T_W_TempertureData
+             ) twtd
+                 left join ems_base_monitor_info ebmi on twtd.monitorId = ebmi.monitor_code
+        where twtd.rownum = 1;
+    </select>
+
 </mapper>