Windows Phone 8.1 中的 Windows.Web.Http.HttpClient

Question

我正在编写一个 Windows Phone 8.1 应用程序 (WINRT)。我创建了一个登录页面，并希望将登录数据发布到服务器并获得响应。

感谢@Kai Brummund，他为我提供了以下方法，但它使用旧的 System.Net.Http;但我想使用强烈推荐的 Windows.Web.Http.HttpClient

使用新的命名空间，在这个方法中到处都是错误。我需要做出哪些改变？

 CancellationTokenSource cancellationToken;
        public async void ReadHeaders()
        {
            cancellationToken = new CancellationTokenSource();

            // Create the message
            string address = singletonInstance.APIServer + "MkhAdapter/rest/mkh/Login";
            var message = new HttpRequestMessage(HttpMethod.Post, new Uri(address));

            // Add the message body
            message.Content = new StringContent(
               LoginJsonData,
                System.Text.UTF8Encoding.UTF8, "application/json");

            ////filter/compress
            //HttpBaseProtocolFilter filter = new HttpBaseProtocolFilter();

            // Send
            var client = new HttpClient();
            var result = await client.SendAsync(message, cancellationToken.Token);

            result.EnsureSuccessStatusCode();

            // Get ids from result
            var finalresult = await result.Content.ReadAsStringAsync();
        } 

Answer 1

基本上你想做一个 Http Post 请求，对吧？ 您可以只使用 WebClient：

        // Create the message
        var message = new HttpRequestMessage(HttpMethod.Post, new Uri(singletonInstance.APIServer + "MkhAdapter/rest/mkh/Login"));

        // Add the message body
        message.Content = new StringContent(
            "{'UserCategory': 'user','Email': User_EnteredUsername, 'Password':User_EnteredPassword}",
            System.Text.UTF8Encoding.UTF8, "application/json");

        // Send
        var client = new HttpClient();
        var result = await client.SendAsync(message, cancellationToken);

        result.EnsureSuccessStatusCode();

        // Get ids from result
        return (await result.Content.ReadAsStringAsync());