Xamarin：无法从站点获取数据

Question

我正在尝试从站点获取信息。为此，我将整个页面请求为一个字符串，然后只查找必要的信息。但不幸的是，我无法从我需要的网站上做到这一点。在移动应用程序中，我可以从 Yandex、Google 和其他网站获取信息，但不能从我自己的网站获取信息。该程序只是在 using (HttpWebResponse response = request.GetResponse() as HttpWebResponse) 行冻结，几分钟后我收到错误消息“操作已超时”

但与此同时，当我在常规应用程序（不是 Xamarin）中使用相同的代码时，我可以毫无问题地从我的站点获取信息。

我尝试了不同的解析器 - 同样的事情。

代码：

private async void Button_Clicked(object sender, EventArgs e)
        {
            //string url = "https://yandex.ru";
            string url = "https://lhl-77.ru";
            string data = "";
            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);

            using (HttpWebResponse response = request.GetResponse() as HttpWebResponse)
            {
                //var responseStream = response.GetResponseStream();
                //var sr = new StreamReader(responseStream);
                //var responseHtml = sr.ReadToEnd(); 

                if (response.StatusCode == HttpStatusCode.OK)
                {
                    Stream receiveStream = response.GetResponseStream();
                    StreamReader readStream = null;
                    if (response.CharacterSet == null)
                    {
                        readStream = new StreamReader(receiveStream);
                    }
                    else
                    {
                        readStream = new StreamReader(receiveStream, Encoding.GetEncoding(response.CharacterSet));
                    }
                    data = readStream.ReadToEnd();
                    response.Close();
                    readStream.Close();

                    int found = data.IndexOf("<title>");
                    int found2 = data.IndexOf("</title>");

                    text.Text = "2";
                    qwe.Text = data.Substring(found + 7, 10);
                    qwe2.Text = "3";
                }
            }
        }

Answer 1

我修复了 Internet 连接，之后我收到证书错误，解决方法如下：

 request.ServerCertificateValidationCallback = delegate { return true; };

Xamarin：无法从站点获取数据

Xamarin: Сan't get data from the site

c#

https

xamarin

xamarin.forms