讀取XML文件的URL

我試圖從HTTPS URL讀取XML文件的URL

System.Net.ServicePointManager.SecurityProtocol = System.Net.SecurityProtocolType.Tls; 
using(WebClient client = new WebClient()) { 
    contents = client.DownloadString(dr["XmlImpotURL"].ToString() + dr["ApiKey"].ToString()); 
}

我得到這個錯誤

System.Net.WebException: The request was aborted: Could not create SSL/TLS secure channel.

我喜歡花2小時解決這一點，我讀一個xml文件似乎無法找到任何解決方案。

來源

2013-10-21 Tunisiano32

您是否使用'ex.ToString（）'顯示了整個異常？可能有一個'InnerException'試圖更詳細地告訴你問題是什麼。 –

對於示例代碼，提供代表性示例數據而不是隨機屬性好得多（例如'DownloadString（「https：// myserver/foo？bar = 222」）'而不是'DownloadString（NotGoingToShowValue）'） –

檢查我的回答如果你仍然面臨問題...分享的網址，並告訴我們你需要激動...什麼是你提到的「博士」 – Aravind

試試這個

 string sVal = "http://www.w3schools.com/xml/note.xml"; 
     XDocument document = XDocument.Load(sVal);

或

Uri url = new Uri("http://www.w3schools.com/xml/note.xml"); 
     using (var wc = new WebClient()) 
     { 
      string sss = wc.DownloadString(url); 
     }

，如果你正面臨着安全問題

試試這個

HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url); 
    req.Method = "GET"; 
    ServicePointManager.SecurityProtocol = SecurityProtocolType.Ssl3; 


    // allows for validation of SSL conversations 
    ServicePointManager.ServerCertificateValidationCallback = delegate { return true; }; 


    WebResponse respon = req.GetResponse(); 
    Stream res = respon.GetResponseStream(); 

    string ret = ""; 
    byte[] buffer = new byte[1048]; 
    int read = 0; 
    while ((read = res.Read(buffer, 0, buffer.Length)) > 0) 
    { 
     Console.Write(Encoding.ASCII.GetString(buffer, 0, read)); 
     ret += Encoding.ASCII.GetString(buffer, 0, read); 
    } 
    return ret;

或

private void Test() 
{ ServicePointManager.ServerCertificateValidationCallback += new      
     RemoteCertificateValidationCallback(Certificate); 
    } 

private static bool Certificate(object sender, X509Certificate certificate, 
          X509Chain chain, SslPolicyErrors policyErrors) { 
          return true; 
         }

檢查此鏈接而不是

System.Net.ServicePointManager.SecurityProtocol = System.Net.SecurityProtocolType.Tls;

來源

2013-10-22 04:46:38 Aravind

這是解決了，我用

System.Net.ServicePointManager.SecurityProtocol = System.Net.SecurityProtocolType.Ssl3;

現在，它的工作，謝謝大家對你的答案。

來源

2013-10-23 00:43:58 Tunisiano32

讀取XML文件的URL

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