https

   public string DoHTTPSComm(string url,string para, string method,string certUrl,string certpwd)
        {
           
            string s = "";
            try
            {
                HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(url);
                request.Method = "POST";
                request.ContentType = "application/x-www-form-urlencoded";

                //创建证书实例
                X509Certificate m_X509Certificate = new X509Certificate();

                m_X509Certificate.Import(certUrl, certpwd, X509KeyStorageFlags.DefaultKeySet);
             

                //添加到请求的证书集合中
                request.ClientCertificates.Add(m_X509Certificate);
                //传输实际内容
                s = para;

                request.ContentLength = System.Text.Encoding.GetEncoding("GBK").GetBytes(s).LongLength;

                System.IO.Stream sm = request.GetRequestStream();

                sm.Write(System.Text.Encoding.GetEncoding("GBK").GetBytes(s), 0, System.Text.Encoding.GetEncoding("GBK").GetBytes(s).Length);
                sm.Close();

                System.IO.StreamReader sr = new System.IO.StreamReader(request.GetResponse().GetResponseStream(), System.Text.Encoding.GetEncoding("GBK"));

                s = "";

                s = sr.ReadToEnd();
 
            }
            catch (Exception ex)
            {
                s_logger.WriteErrLog("IPS3.CAT.Common.Socket", "DoHTTPSComm", "连接异常", ex);

                return "";
            }

            return s;
        }
 
 

  public static string DoHTTPSComm(string url, string para, string method, string certUrl, string certpwd)
        {
            string s = "";
            // 线程锁
            mu.WaitOne();
            try
            {
                if (s_pay == null)
                {
                    s_pay = new IPS3.CAT.Common.com.ecitic.bank.test.pay.PaymentServicesService();
                    X509Certificate m_X509Certificate = new X509Certificate();
                    m_X509Certificate.Import(certUrl, certpwd, X509KeyStorageFlags.DefaultKeySet);
                    //添加到请求的证书集合中
                    s_pay.ClientCertificates.Add(m_X509Certificate);
                    s_pay.Url = url;
                }
                // session使用
                s_pay.CookieContainer = cookieContainer;
                Type type = s_pay.GetType();
                MethodInfo m = type.GetMethod(method);
                // 调用方法接口
                s = (string)m.Invoke(s_pay, new object[] { para });
            }
            catch (Exception ex)
            {
                s_logger.WriteErrLog("IPS3.CAT.Common.Socket", "DoHTTPSComm", "连接异常", ex);
                return "";
            }
            finally 
            {
                mu.ReleaseMutex();
            }
            return s;
        }