diff --git a/data/src/main/java/com/sdm/data/service/IDataFileService.java b/data/src/main/java/com/sdm/data/service/IDataFileService.java
index 7e98bdb3..64f50de4 100644
--- a/data/src/main/java/com/sdm/data/service/IDataFileService.java
+++ b/data/src/main/java/com/sdm/data/service/IDataFileService.java
@@ -449,7 +449,7 @@ public interface IDataFileService {
      * @param req 批量下载请求参数（fileIds、zipFileName、skipPermissionCheck）
      * @return 任务ID响应，前端凭 taskId 匹配 WebSocket 通知
      */
-    SdmResponse<BatchDownloadTaskResp> batchDownloadZip(BatchDownloadReq req);
+    default SdmResponse<BatchDownloadTaskResp> batchDownloadZip(BatchDownloadReq req){return null;};
 
 
     /**