iot历史数据查询返回参数格式修改

dmp-business/dmp-rwd/src/main/java/com/persagy/dmp/rwd/iot/service/impl/HistoryIotServiceImpl.java

@@ -101,7 +101,7 @@ public class HistoryIotServiceImpl implements HistoryIotService {
                         JSONObject dataItem = (JSONObject) jsonNode;
                         JSONObject item = new JSONObject();
                         item.put("time", dataItem.getString("data_time"));
-                        item.put("data", dataItem.getString("data_value"));
+                        item.put("data", dataItem.getDouble("data_value"));
                         data.add(item);
                     }
                 }