// POST api/values        public async Task Post()        {            try            {                // 检查该请求是否含有multipart/form-data                if (!Request.Content.IsMimeMultipartContent())                {                    throw new HttpResponseException(HttpStatusCode.UnsupportedMediaType);                }                // 方法一                System.Web.HttpFileCollection file = System.Web.HttpContext.Current.Request.Files;                if (file.Count > 0)                {                    //文件名                      string name = file[0].FileName;                    //保存文件                      string path = HttpContext.Current.Server.MapPath("~/") + name;                    file[0].SaveAs(path);                }                Dictionary
     
       dicFormData = new Dictionary
      
       ();                foreach (var key in System.Web.HttpContext.Current.Request.Form.AllKeys)                {                    //接收FormData                      dicFormData.Add(key, System.Web.HttpContext.Current.Request.Form[key]);                }                // 方法二                Dictionary
       
         dic = new Dictionary
        
         ();                string root = HttpContext.Current.Server.MapPath("~/App_Data");//指定要将文件存入的服务器物理位置                  var provider = new MultipartFormDataStreamProvider(root);                // Read the form data.                  await Request.Content.ReadAsMultipartAsync(provider);                // This illustrates how to get the file names.                  foreach (MultipartFileData file1 in provider.FileData)                {
    //接收文件                      Trace.WriteLine(file1.Headers.ContentDisposition.FileName);//获取上传文件实际的文件名                      Trace.WriteLine("Server file path: " + file1.LocalFileName);//获取上传文件在服务上默认的文件名                  }                foreach (var key in provider.FormData.AllKeys)                {
    //接收FormData                      dic.Add(key, provider.FormData[key]);                }            }            catch (Exception ex)            {                throw ex;            }        }