/// 
        /// 提交POST请求        /// 
        /// 提交地址        /// 提交的数据        /// 发送时使用的编码格式        /// 接收时使用的编码格式        /// 超时时间        /// 是否签名        /// 是否为登录，如果是登录通过post提交数据需要的+进行替换        /// 
              private static CResponseResult HttpPostResult(String url, String postData, Encoding sendEncode, Encoding receiveEncode, int timeout = 0, bool signFlag = false,bool caLogin=false)        {            using (new CWaitCursor())            {                //连接网站是否出错                bool isConnErr = false;                //返回结果                CResponseResult result = new CResponseResult();                //创建Http请求                HttpWebRequest request;                try                {                    byte[] postBytes = null;                    if (caLogin)                    {                        postBytes = sendEncode.GetBytes(postData.Replace("+", "%2B"));                    }                    else                    {                        postBytes = sendEncode.GetBytes(postData);                    }                                        //设置用于验证服务器证书的回调                    ServicePointManager.ServerCertificateValidationCallback = ValidateServerCertificate;                    //创建Http请求                    //如果是发送HTTPS请求                      if (url.StartsWith("https", StringComparison.OrdinalIgnoreCase))                    {                        ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(ValidateServerCertificate);                        request = WebRequest.Create(url) as HttpWebRequest;                        request.ProtocolVersion = HttpVersion.Version10;                    }                    else                        request = (HttpWebRequest)WebRequest.Create(new Uri(url));                    //超时                    if (timeout > 0)                    {                        //此处是毫秒为单位，不能随便转成以秒单位                        request.Timeout = timeout;                        if (request.ReadWriteTimeout < request.Timeout)                            request.ReadWriteTimeout = request.Timeout;                    }                    request.CookieContainer = GetCookie(url);                    request.Headers.Set("Cache-Control", "no-cache");                    request.Headers.Set("Pragma", "no-cache");                    request.Headers.Set("FRAME_SSO_TICKET", LscSSOTicket.Replace("\r","").Replace("\n",""));                    request.Method = "POST";                    if (signFlag)                    {                        if (Encoding.Default.GetBytes(postData).Length > limitSize * 1024)                        {                            string compressDataString = BZipUtil.compressTobase64(BZipUtil.compress(postData));                            postBytes = sendEncode.GetBytes(compressDataString);                            request.ContentType = "application/zip-compress-ca-encrypted-data";                        }                        else                        {                            request.ContentType = "application/ca-encrypted-data";                        }                    }                    else                    {                        if (Encoding.Default.GetBytes(postData).Length > limitSize * 1024)                        {                            string compressDataString = BZipUtil.compressTobase64(BZipUtil.compress(postData));                            postBytes = sendEncode.GetBytes(compressDataString);                            request.ContentType = "application/zip-compress-data";                        }                        else                        {                            request.ContentType = "application/x-www-form-urlencoded";                        }                    }                    request.ContentLength = postBytes.Length;                    //发起Http请求                    //设置代理                    ProxySetting(request);                    //用于发送数据的 Stream 对象                    Stream requestStream = request.GetRequestStream();                    requestStream.Write(postBytes, 0, postBytes.Length);                    requestStream.Close();                    //if (currBaseCookie == null)                    //{                    //    currBaseCookie = new CookieContainer();                    //request.CookieContainer = GetCookie(url);                    //}                }                catch (Exception ex)                {                    isConnErr = true;                    result.Code = "1";                    result.Message = ex.Message;                    //出现异常，统一抛出HttpPostException                    throw new HttpPostException(ex);                }                //Http响应                if (!isConnErr)                {                    try                    {                        HttpWebResponse response = (HttpWebResponse)request.GetResponse();                        Encoding jspEncode = GetJspEncode(response.GetResponseHeader("Content-Type"));                        string contentType = response.ContentType;                        StreamReader reader = new StreamReader(response.GetResponseStream(), jspEncode == null ? receiveEncode : jspEncode);                        if (contentType.Contains("application/zip-compress-data;"))                        {                            //返回内容                            result.Message = BZipUtil.decompress(BZipUtil.base64Tocompress(reader.ReadToEnd().Trim()));                        }                        else                        {                            result.Message = reader.ReadToEnd().Trim();                        }                        result.Code = "0";                        //关闭连接                        reader.Close();                        response.Close();                    }                    catch (WebException ex)                    {                        HttpWebResponse res = ex.Response as HttpWebResponse;                        if (res != null)                        {                            if (res.StatusCode == HttpStatusCode.Forbidden)                            {                                Stream s = res.GetResponseStream();                                Encoding jspEncode = GetJspEncode(res.GetResponseHeader("Content-Type"));                                string contentType = res.ContentType;                                StreamReader objReader = new StreamReader(s, receiveEncode);                                if (contentType.Contains("application/zip-compress-data;"))                                {                                    //返回内容                                    result.Message = BZipUtil.decompress(BZipUtil.base64Tocompress(objReader.ReadToEnd().Trim()));                                }                                else                                {                                    result.Message = objReader.ReadToEnd().Trim();                                }                                objReader.Close();                                objReader.Close();                                result.Code = "403";                            }                            else                            {                                result.Message = ex.Message;                                result.Code = ((int)(res.StatusCode)).ToString();                            }                            return result;                        }                        throw new HttpPostException(ex);                    }                    catch (Exception ex)                    {                        result.Code = "2";                        result.Message = ex.Message;                        throw new HttpPostException(ex);                    }                }                return result;            }        }