[UWP]如何在我的UWP应用程序的URL上发布json文件。 [英] [UWP]how to post a json file on a URL from my UWP app.

问题描述

HI，

我是通用Windows平台新手

I am new to universal windows platform

和 < g class =" gr_ gr_15 gr-alert gr_tiny gr_spell gr_run_anim ContextualSpelling multiReplace"数据-GR-ID =" 15" id =" 15">< g class =" gr_ gr_14 gr-alert
gr_tiny gr_gramm gr_run_anim Grammar multiReplace"数据-GR-ID =" 14'; id =" 14"> i< / g>< / g>  m面临上传我的问题< g class =" gr_ gr_11 gr-alert gr_spell gr_run_anim ContextualSpelling ins-del multiReplace"
data-gr-id =" 11" id =" 11"> json< / g> 文件到URL来自我 < g class =" gr_ gr_12 gr-alert gr_spell gr_run_anim ContextualSpelling ins-del multiReplace"数据-GR-ID =" 12英寸ID = QUOT; 12英寸;> UWP< / g取代;&NBSP;应用程序。
这是我试过的一部分b

and <g class="gr_ gr_15 gr-alert gr_tiny gr_spell gr_run_anim ContextualSpelling multiReplace" data-gr-id="15" id="15"><g class="gr_ gr_14 gr-alert gr_tiny gr_gramm gr_run_anim Grammar multiReplace" data-gr-id="14" id="14">i</g></g> m facing issues with uploading my <g class="gr_ gr_11 gr-alert gr_spell gr_run_anim ContextualSpelling ins-del multiReplace" data-gr-id="11" id="11">json</g> file on to a URL From my <g class="gr_ gr_12 gr-alert gr_spell gr_run_anim ContextualSpelling ins-del multiReplace" data-gr-id="12" id="12">uwp</g> app. This is a part of what I've tried

&NBSP;   var request =（HttpWebRequest）WebRequest.Create（" http：// url"）;

  &NBSP; &NBSP; &NBSP; &NBSP; &NBSP;   request.ContentType =" application / json";

  &NBSP; &NBSP; &NBSP; &NBSP; &NBSP;   request.Method =" POST"; $


  &NBSP; &NBSP; &NBSP; &NBSP; &NBSP;   using（var streamWriter = new StreamWriter（request.GetRequestStream（））））
  &NBSP; &NBSP; &NBSP; &NBSP; &NBSP;   {

  &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP;   string json = JSONOutput;



  &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP;   streamWriter.Write（json）;

  &NBSP; &NBSP; &NBSP; &NBSP; &NBSP;  }

   var request = (HttpWebRequest)WebRequest.Create("http://url");
             request.ContentType = "application/json";
             request.Method = "POST";

             using (var streamWriter = new StreamWriter(request.GetRequestStream()))
             {
                 string json = JSONOutput;

                 streamWriter.Write(json);
             }

错误表示GetFquestStream（）未在StreamWriter中定义

The error says GetRequestStream() is not defined in StreamWriter

推荐答案

您好
praneeth parthasarathy ，

欢迎来到开发通用Windows应用程序
论坛！

请阅读粘性帖子，特别是  发布指南：主题行
标签 &absp; Windows 10 SDK和工具的已知问题  ，
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使用以下代码

using Windows.Web.Http;

HttpRequestMessage requestMessage = new HttpRequestMessage（HttpMethod.Post，new Uri（" http：// aaa"））;
IHttpContent content = new HttpStringContent（"在这里传递数据"）;
requestMessage.Content = content;
HttpClient client = new HttpClient（）;
HttpResponseMessage response = await client.SendRequestAsync（requestMessage）;

HttpRequestMessage requestMessage = new HttpRequestMessage(HttpMethod.Post, new Uri("http://aaa")); IHttpContent content = new HttpStringContent("pass data here"); requestMessage.Content = content; HttpClient client = new HttpClient(); HttpResponseMessage response = await client.SendRequestAsync(requestMessage);

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