应对https协议的下载方式

在请求下函数前面加一句这样的话，就可以实行对https协议的网站进行下载。
ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(CheckValidationResult);

 

 

   public static bool CheckValidationResult(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors errors)
         { // Always accept
             Console.WriteLine("accept" + certificate.GetName());
             return true; //总是接受
         } 

    public class AcceptAllCertificatePolicy : ICertificatePolicy
    {

        public AcceptAllCertificatePolicy()
        {

            //

            // TODO: Add constructor logic here

            //

        }

        public bool CheckValidationResult(ServicePoint sPoint,

        X509Certificate cert, WebRequest wRequest, int certProb)
        {

            // Always accept

            return true;

        }

    }