diff --git a/electrmangnetic/src/main/java/com/electromagnetic/industry/software/manage/service/serviceimpl/EdFileInfoServiceImpl.java b/electrmangnetic/src/main/java/com/electromagnetic/industry/software/manage/service/serviceimpl/EdFileInfoServiceImpl.java
index 717967f..b497380 100644
--- a/electrmangnetic/src/main/java/com/electromagnetic/industry/software/manage/service/serviceimpl/EdFileInfoServiceImpl.java
+++ b/electrmangnetic/src/main/java/com/electromagnetic/industry/software/manage/service/serviceimpl/EdFileInfoServiceImpl.java
@@ -820,7 +820,7 @@ public class EdFileInfoServiceImpl extends ServiceImpl<EdFileInfoMapper, EdFileI
         FileSystemResource fileSystemResource = new FileSystemResource(file);
         HttpHeaders headers = new HttpHeaders();
         headers.add("Cache-Control", "no-cache, no-store, must-revalidate");
-        String tmpFileName = fileSystemResource.getFilename() + "_" + nowTimeStr;
+        String tmpFileName = fileSystemResource.getFilename();
         String fileName = Base64.encode(tmpFileName);
         headers.add("Pragma", "no-cache");
         headers.add("Expires", "0");