c# API接受图片文件以文件格式上传图片

   /// 文件图片上传          /// </summary>          /// <returns>成功上传返回上传后的文件名</returns>         [HttpPost]         public async Task<IHttpActionResult> UpLoadImageFiles()         {              var files = HttpContext.Current.Request.Files;             if (files.AllKeys.Any())             {                 using (HttpClient client = new HttpClient())                 {                     HttpContextBase HttpContext = (HttpContextBase)Request.Properties["MS_HttpContext"];                     var request = new HttpRequestMessage(HttpMethod.Post, ConfigurationManager.AppSettings["SaveToImgaes"].ToString() + "/Upload/");                     var content = new MultipartFormDataContent();                     content.Add(new StreamContent(HttpContext.Request.Files[0].InputStream), "file", "file.jpg");                     request.Content = content;                     var response = await client.SendAsync(request);                     response.EnsureSuccessStatusCode();                     var filenamestr = await response.Content.ReadAsStringAsync();//结果                 }             }             return Ok();         }

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