如何在后端龙卷风的html文件上传后获得成功消息？

HI all here i am submitting a form/ uploading a form i want to display that file has been successfully uploaded on the same page can anybody help me in how to complete the task after the uploading the file i go to the upload url but it is redirecting to the same html BUT i want to print a notification stating that the form has been submitted how can i achieve this HI all here i am submitting a form/ uploading a