screen-aqi 增加监测因子对比图接口

kaiyu

2021-10-09 2dee01ae6f13a72b1d2ba9ca3d1ffbea72ab513b

 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());