feature 增加提示信息

zhsw-common/src/main/java/com/rongwei/zhsw/system/service/impl/ImportExcelServiceImpl.java

@@ -73,7 +73,7 @@ public class ImportExcelServiceImpl implements ImportExcelService {
         long entTime = System.currentTimeMillis();
         log.error("excel解析时长：{}", startTime - entTime);
         List<SwWaterUsageEntryDo> saveList = meterReadingRecordListener.getData();
-        if(!saveList.isEmpty()) {
+        if(saveList.isEmpty()) {
             R.error("数据已导入或excel为空");
         }
         Map<String, SwUserManagementDo> ownerMap = meterReadingRecordListener.getOwnerMap();