使用windows.web.http从Windows Phone 8.1将图像上传到服务器

debugcn 发表于 Dev

KJ结束

Iam当前正在使用Windows Phone 8.1应用程序。我真的很新，我想知道如何使用windows.web.http从Windows Phone 8.1将图像上传到Web服务。提前

阿列克谢夏天

您可以这样操作：

 Uri resourceAddress = new Uri("http://www.someurl.com/~?lalala");

 StorageFile img = await ApplicationData.Current.LocalFolder.GetFileAsync("ImageName.jpg");
 Stream inputStream = await img.OpenStreamForReadAsync();

 HttpRequestMessage request = new HttpRequestMessage(HttpMethod.Post, resourceAddress);
 HttpMultipartContent cont = new HttpMultipartContent();
 cont.Add(new HttpStreamContent(inputStream.AsInputStream()));
 cont.Headers.ContentType = new HttpMediaTypeHeaderValue("image/jpeg");
 request.Content = cont;
 request.Headers.Connection.Add(new HttpConnectionOptionHeaderValue("Keep-Alive"));
 request.Content.Headers.ContentLength = (ulong)inputStream.Length;


 HttpResponseMessage response = await httpClient.SendRequestAsync(request);

 if (response.StatusCode == HttpStatusCode.Ok)
   {
      return true;
   }

或者，您可以将最后的“ if”替换为：

 using (Stream responseStream = (await response.Content.ReadAsInputStreamAsync()).AsStreamForRead())
   {
      StreamReader reader = new StreamReader(responseStream);
      string result = await reader.ReadToEndAsync();
   }

这是与github上的官方示例的良好链接：HttpClient示例

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