我正在开发一个登录网页并获取一些数据的 WinRT 应用程序。问题是我收到“HttpRequestException：发送请求时出错”消息。这是代码：
Uri url = new Uri("https://miyoigo-b.yoigo.com/selfcare/login");
HttpContent msg = new StringContent("account[cli]=" + number + "&password=" + pass);
HttpClientHandler handler = new HttpClientHandler();
handler.UseDefaultCredentials = true;
handler.UseCookies = true;
handler.CookieContainer = new CookieContainer();
HttpClient req = new HttpClient(handler);
req.DefaultRequestHeaders.Add("Host", "miyoigo-b.yoigo.com");
req.DefaultRequestHeaders.ExpectContinue = false;
HttpResponseMessage response = await req.PostAsync(url, msg);
string responseBody = await response.Content.ReadAsStringAsync();
我一直在尝试我在互联网上找到的很多东西，甚至禁用了我的防火墙，但没有任何效果。我正在从 Windows Phone 应用程序移植它，它确实适用于：
Uri url = new Uri("https://miyoigo-b.yoigo.com/selfcare/login");
HttpWebRequest req = (HttpWebRequest)HttpWebRequest.Create(url);
req.Method = "POST";
req.Headers["Host"] = "miyoigo-b.yoigo.com";
req.CookieContainer = new CookieContainer();
req.BeginGetRequestStream(new AsyncCallback(WriteCallback), req);
之后，在回调中，我创建了一个 Stream 并编写了凭据。
任何的想法？？我知道问题出在这个网页上，可能是我忘记发送某些内容或 POST 内容的格式不正确...
谢谢