客戶端方法

        /// <summary>
        /// 發送post請求,通過API上傳本地文件到服務器
        /// </summary>
        /// <param name="authorCode">API秘鑰</param>
        /// <param name="url">API上傳地址</param>
        /// <param name="FilePath">需要上傳的文件本地完整路徑</param>
        /// <param name="FileName">
 
上傳文件保存的名字</param>
        /// <returns></returns>
        public static string HttpPostRequst_UploadFile(string authorCode, string url , string FilePath , string FileName )
        {
            //--------上傳------------
            HttpClient client = new HttpClient();
            //驗證
 

            client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Basic", authorCode);
            //指定類型
            client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
            #region
            MultipartFormDataContent form 
 
= new MultipartFormDataContent();
            StreamContent fileContent = new StreamContent(File.OpenRead(FilePath));
            fileContent.Headers.ContentType = new MediaTypeHeaderValue("application/octet-stream");
            fileContent.Headers.ContentDisposition = new ContentDispositionHeaderValue("form-data");
            fileContent.Headers.ContentDisposition.FileName = FileName;
            form.Add(fileContent);
            #endregion

            HttpResponseMessage res = client.PostAsync(url, form).Result;
            var uploadModel = res.Content.ReadAsStringAsync().Result;

            return uploadModel;
        }

服務器方法

     public HttpResponseMessage PostFile( )
        {
            HttpResponseMessage result = null;
            var httpRequest = HttpContext.Current.Request;
            if (httpRequest.Files.Count > 0)
            {
                var docfiles = new List<string>();
                foreach (string file in httpRequest.Files)
                {
                    var postedFile = httpRequest.Files[file];
                    var filePath = HttpContext.Current.Server.MapPath("~/" + postedFile.FileName);
                    postedFile.SaveAs(filePath);

                    docfiles.Add(filePath);
                }
                result = Request.CreateResponse(HttpStatusCode.Created, docfiles);
            }
            else
            {
                result = Request.CreateResponse(HttpStatusCode.BadRequest);
            }
            return result;
        }

通過API上傳文件