//设置https验证方式
                if (url.StartsWith("https", StringComparison.OrdinalIgnoreCase))
                {
                    ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(CheckValidationResult);//验证服务器证书回调自动验证
                }
                HttpWebRequest request = (HttpWebRequest)WebRequest.Create(new Uri(url));
                request.ConnectionGroupName = uid + "," + utype;
                request.BeginGetResponse(new AsyncCallback(ReadCallback), request);
private static void ReadCallback(IAsyncResult ar)
        {
                HttpWebRequest request = (HttpWebRequest)ar.AsyncState;
                HttpWebResponse response = (HttpWebResponse)request.EndGetResponse(ar);
                using (Stream responseStream = response.GetResponseStream())
                {
                    StreamReader readStream = new StreamReader(responseStream, Encoding.UTF8);
                    string unionid = readStream.ReadToEnd();
                    
                    if (!string.IsNullOrEmpty(unionid))
                    {
                        string[] arr = request.ConnectionGroupName.Split(",");
                        string uid = arr[0].ToString();
                        string utype = arr[1].ToString();
                        if (!string.IsNullOrEmpty(uid))
                        {
                            //更新数据库
                            if (utype == "1")
                            {
                                string filename = @"D:\www\2013_Tzrl\Tzrl_Wan\log.txt";
                                StreamWriter sr = null;
                                try
                                {
                                    if (!File.Exists(filename))
                                    {
                                        sr = File.CreateText(filename);
                                    }
                                    else
                                    {
                                        sr = File.AppendText(filename);
                                    }
                                    sr.WriteLine("," + uid + "," + utype + "," + unionid);
                                }
                                catch
                                {
                                }
                                finally
                                {
                                    if (sr != null)
                                        sr.Close();
                                }
                                //此处写入文件中的信息是正常回调过来的本人要的信息，但是等操作数据库更新的时候就无反应
//数据库操作是没有错的！本人测试过的。                             }
                            else
                            {
                            }
                        }
                    }
                    request.Abort();
                    response.Close();
                    readStream.Close();
                }
        }

哪位高手有遇到过相似的问题么？网上看到的也都是打印出来的，没有看到相似操作数据库更新的