关于蓝牙通讯报 The operation is not allowed on non-connected sockets. 错误

来源：互联网发布：淘宝用网银怎么支付编辑：程序博客网时间：2024/06/04 20:02

我在用PDA设备连接蓝牙称进行通讯，总是时不时的报 The operation is not allowed on non-connected sockets. ，后来加了一个Thread.Sleep(500); 解决了此问题

根据我的分析，原因是蓝牙创建连接后，停止半秒后，可以避免此错误。

大致代码如下：

        protected BluetoothDeviceInfo device = null;        protected BluetoothClient client = null;        Stream peerStream = null;        ///蓝牙名        string blueName = BGLms.Handset.Code_JM.Configuration.XmlConfiguration.Instance.BlueName;        ///蓝牙密码        string bluePwd = BGLms.Handset.Code_JM.Configuration.XmlConfiguration.Instance.BluePwd;

         /// <summary>        /// Conn连接蓝牙        /// </summary>        public void loadConnectService()        {            try            {                if(client==null)                client = new BluetoothClient();                BluetoothDeviceInfo[] devices = client.DiscoverDevices(); //获取蓝牙设备扫描的所有服务湍                foreach (BluetoothDeviceInfo d in devices)                {                    if (d.DeviceName == blueName)                    {                        device = d;                        break;                    }                }               // device = devices[0];                if (!device.Connected)//创建客户端连接对象                {                    client.SetPin(device.DeviceAddress, bluePwd);  //密码                     client.Connect(device.DeviceAddress, BluetoothService.SerialPort);                                   }            }            catch (Exception ex)            {                if (peerStream != null)                {                     peerStream.Dispose();                }                if (client != null)                {                    client.Close();                                  }                MessageBox.Show("Error:" + ex.Message);            }        }

<p>        /// <summary>        /// 获取数据        /// </summary>        private void GetMac()        {            StringBuilder resultdata = new StringBuilder();            //string errorMsg = "";            try            {                int I = 0;                Thread.Sleep(500);   //关键代码                                     if (peerStream == null)                 peerStream = client.GetStream();                #region MyRegion                while (true) //因为我这边蓝牙服务端是连续发送模式，所以通过此方法获取最新的通讯数据；       {                    byte[] buffer = new byte[4096];                    // Read Data                    if (peerStream.CanRead)                    {                        peerStream.Read(buffer, 0, 4096);                        // Convert Data to String                        string data = System.Text.ASCIIEncoding.ASCII.GetString(buffer, 0, 4096);                        data = data.Substring(1, data.Length - 1);                        string[] arraystr = data.Split('=');                        if (arraystr.Length < 512) //判断是不否读完                        {                            for (int i = arraystr[arraystr.Length - 2].Length - 1; i >= 0; i--)                            {                                resultdata.Append(arraystr[arraystr.Length - 2][i].ToString());                            }                            break;                        }                    }                    if (I > int.MaxValue)                    {                        break;                    }                    I++;                }                 #endregion             }            catch (Exception ex)            {                if (peerStream != null)                {                    peerStream.Close();                    peerStream.Dispose();                }                if (client != null)                {                    client.Close();                    client.Dispose();                }                              return;            }</p><p>                  }</p>

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