從網站獲取數據出現錯誤：現有連接被遠程主機強制關閉c＃

Question

我在生產服務器上某時（上午9點到下午2點）收到錯誤錯誤消息，但測試服務器上沒有錯誤。 實際上，我使用http請求從不同網站中提取數據。 它每天的每個小時運行

錯誤：

System.Net.WebException: The underlying connection was closed: An unexpected error occurred on a send. 
---> System.IO.IOException: Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host. 
---> System.Net.Sockets.SocketException: An existing connection was forcibly closed by the remote host 

CODE：

HttpWebRequest webRequest = WebRequest.Create(URL) as HttpWebRequest; 
webRequest.CookieContainer = cookies; 
StreamReader responseReader = new StreamReader(webRequest.GetResponse().GetResponseStream()); 
HttpWebResponse response = (HttpWebResponse)webRequest.GetResponse(); 
response.Cookies = webRequest.CookieContainer.GetCookies(webRequest.RequestUri); 
string responseData = responseReader.ReadToEnd(); 
responseReader.Close(); 
webRequest.KeepAlive = false; 
return responseData; 

Answer 1

嘗試在您的代碼

ServicePointManager.ServerCertificateValidationCallback = new System.Net.Security.RemoteCertificateValidationCallback(AcceptAll); 

和功能附加其後的行被定義爲

public bool AcceptAll(object sender, System.Security.Cryptography.X509Certificates.X509Certificate certification, System.Security.Cryptography.X509Certificates.X509Chain chain, System.Net.Security.SslPolicyErrors sslPolicyErrors) 
{ 
    return true; 
}