private UploadResponseDTO Upload_File(OSSFileCode code) { UploadResponseDTO dto = null; if (ContextCurrent.Request.Files.Count == 0) { dto = new UploadResponseDTO(); return(dto); } var key = Guid.NewGuid().ToString("N"); var file = ContextCurrent.Request.Files[0]; var fileName = file.FileName; string imgUrl = UploadHelper.Save(file, code.ToString()); if (imgUrl == null) { dto = new UploadResponseDTO(); return(dto); } dto = new UploadResponseDTO(); dto.url = imgUrl; dto.original = fileName; dto.title = fileName; dto.state = UploadStateCode.Success; return(dto); }