通过时间和mac集合查询数据接口，修改蜂窝图小时数据接口

lizijie

2022-04-28 dacae5af651baa6ae102c8dd4350a7b8b7d86fe6

 screen-manage/src/main/java/com/moral/api/util/CompareFieldUtils.java

@@ -70,7 +70,7 @@
                else
                    result.setNewData(newDataObj.toString());

                if(oldDataObj==null)
                if(oldDataObj==null||oldDataObj.equals(""))
                    result.setOldData("null");
                else
                    result.setOldData(oldDataObj.toString());