diff --git a/src/main/java/com/fr/plugin/file/submit/oss/fun/OssDownloadHttpHandler.java b/src/main/java/com/fr/plugin/file/submit/oss/fun/OssDownloadHttpHandler.java
index cf6f5e9..e5b3e73 100644
--- a/src/main/java/com/fr/plugin/file/submit/oss/fun/OssDownloadHttpHandler.java
+++ b/src/main/java/com/fr/plugin/file/submit/oss/fun/OssDownloadHttpHandler.java
@@ -18,21 +18,22 @@ import java.util.Date;
 
 public class OssDownloadHttpHandler extends BaseHttpHandler {
 
+    @Override
     public RequestMethod getMethod() {
         return RequestMethod.POST;
     }
 
-
+    @Override
     public String getPath() {
         return "/oss/download";
     }
 
-
+    @Override
     public boolean isPublic() {
         return true;
     }
 
-
+    @Override
     public void handle(HttpServletRequest req, HttpServletResponse res) throws Exception {
         String bucket = NetworkKit.getHTTPRequestParameter(req, "bucket");
         String directory = NetworkKit.getHTTPRequestParameter(req, "directory");