diff --git a/pqs-common/common-oss/src/main/java/com/njcn/oss/utils/FileStorageUtil.java b/pqs-common/common-oss/src/main/java/com/njcn/oss/utils/FileStorageUtil.java
index b670e082e..dde196cd7 100644
--- a/pqs-common/common-oss/src/main/java/com/njcn/oss/utils/FileStorageUtil.java
+++ b/pqs-common/common-oss/src/main/java/com/njcn/oss/utils/FileStorageUtil.java
@@ -207,7 +207,7 @@ public class FileStorageUtil {
         } catch (Exception exception) {
             throw new BusinessException(OssResponseEnum.DOWNLOAD_FILE_STREAM_ERROR);
         }
-        String fileType = filePath.substring(filePath.lastIndexOf('.')).toLowerCase();
+        String fileType = filePath.substring(filePath.lastIndexOf('.')+1).toLowerCase();
         switch (fileType) {
             case "jpg":
             case "jpeg":
@@ -221,7 +221,7 @@ public class FileStorageUtil {
                 break;
             default:
                 response.setContentType("application/octet-stream;charset=UTF-8");
-                response.setHeader("Content-Disposition", "inline;attachment;filename=" + filePath);
+                response.setHeader("Content-Disposition", "attachment;filename=" + filePath);
                 break;
         }
         try {