diff --git a/epmet-module/epmet-oss/epmet-oss-server/src/main/java/com/epmet/controller/OssController.java b/epmet-module/epmet-oss/epmet-oss-server/src/main/java/com/epmet/controller/OssController.java
index ae806027ff..1559d4160b 100644
--- a/epmet-module/epmet-oss/epmet-oss-server/src/main/java/com/epmet/controller/OssController.java
+++ b/epmet-module/epmet-oss/epmet-oss-server/src/main/java/com/epmet/controller/OssController.java
@@ -10,6 +10,7 @@ package com.epmet.controller;
 
 import com.epmet.cloud.CloudStorageConfig;
 import com.epmet.cloud.OssFactory;
+import com.epmet.commons.tools.constant.NumConstant;
 import com.epmet.commons.tools.exception.EpmetErrorCode;
 import com.epmet.commons.tools.exception.RenException;
 import com.epmet.commons.tools.page.PageData;