public async Task <UploadResult> UploadFile(bool origin, bool min, bool mid, bool max) { // Check if the request contains multipart/form-data. if (!Request.Content.IsMimeMultipartContent()) { throw new HttpResponseException(HttpStatusCode.UnsupportedMediaType); } string folder = ConfigurationManager.AppSettings["FileIntMarketPath"].ToString() + UploadHelper.GetDateFolder(); string directory = HttpContext.Current.Server.MapPath("~/" + folder); if (!Directory.Exists(directory)) { Directory.CreateDirectory(directory); } var provider = new SQStreamProvider(directory); var result = new UploadResult(); try { // Read the form data. await Request.Content.ReadAsMultipartAsync(provider); if (provider.FileData.Count() > 1) { result.Error = "上传数量出错"; return(result); } FileInfo fi = new FileInfo(provider.FileData[0].LocalFileName); result.ImageName = fi.Name; result.Status = "success"; result.ImageUrl = UploadHelper.GetImgSaveUrl(folder, fi.Name.Replace(fi.Extension, ""), fi.Extension); if (origin) { return(result); } if (min) { UploadHelper.Crop(fi.FullName, 120); result.ImageUrl_120 = UploadHelper.GetImgSaveUrl(folder, fi.Name.Replace(fi.Extension, ""), ".jpg", 120); } if (mid) { UploadHelper.Crop(fi.FullName, 430); result.ImageUrl_430 = UploadHelper.GetImgSaveUrl(folder, fi.Name.Replace(fi.Extension, ""), ".jpg", 430); } if (max) { UploadHelper.Crop(fi.FullName, 800); result.ImageUrl_800 = UploadHelper.GetImgSaveUrl(folder, fi.Name.Replace(fi.Extension, ""), ".jpg", 430); } return(result); } catch (System.Exception e) { result.Error = e.Message; return(result); } }