从网站获取数据获取错误：远程主机c＃强制关闭现有连接

Question

我在某个时间（上午9点到下午2点）在生产服务器上出现错误，但在测试服务器上没有。 实际上，我使用http请求从不同的网站上废弃了数据。 它每小时运行一次

错误：

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

代码：

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

尝试在代码中添加以下行

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

并且函数将被定义为

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