Sockets 由于线程退出或应用程序请求，已放弃 I/O 操作。

air123456789 2012-06-18 09:50:40

代码如下。

Thread th= new Thread(new ThreadStart(InitialPPTTcp));

th.IsBackground = true;

th.Start();



       public void InitialPPTTcp()

        {

            TcpListener pptListener = new TcpListener(ip,8506);

            pptListener.Start();

            TcpClient pptClient = pptListener.AcceptTcpClient();

            pptBeginRead(pptClient);

        }



                private void pptBeginRead(TcpClient pptClient)

        {

            this.pptClient = pptClient;

            pptRemoteEndPoint = pptClient.Client.RemoteEndPoint.ToString();

            

            pptStreamToClient = pptClient.GetStream();

            pptBuffer = new byte[pptBufferSize];

            pptHandler = new ProtocolHandler();



            AsyncCallback pptCallBack = new AsyncCallback(pptOnReadComplete);

            pptStreamToClient.BeginRead(pptBuffer, 0, pptBufferSize, pptCallBack, are.WaitOne());

        }





        private void pptOnReadComplete(IAsyncResult ar)

        {

            int bytesRead = 0;

            try

            {

                lock (pptStreamToClient)

                    bytesRead = pptStreamToClient.EndRead(ar);   //这里出错了。



                string msg = Encoding.Unicode.GetString(buffer, 0, bytesRead);

                Array.Clear(pptBuffer, 0, pptBuffer.Length); //清空缓存，避免脏读。



                string[] protocolArray = pptHandler.GetProtocol(msg);

                foreach (string pro in protocolArray)

                {

                    ParameterizedThreadStart start = new ParameterizedThreadStart(pptHandleProtocol);

                    start.BeginInvoke(pro, null, null);

                }



                //无限循环

                lock (pptStreamToClient)

                {

                    AsyncCallback callBack = new AsyncCallback(pptOnReadComplete);

                    pptStreamToClient.BeginRead(pptBuffer, 0, pptBufferSize, callBack, null);

                }

            }

            catch (Exception ex)

            {

                if (pptStreamToClient != null)

                    pptStreamToClient.Dispose();

                pptClient.Close();

                frmMessageBoxDialog.Show(ex.StackTrace, "错误", MessageBoxButtonEx.OK, MessageBoxIconEx.Error);

                return;

                //MessageBox.Show(ex.Message);

            }



        }

lock (pptStreamToClient)
bytesRead = pptStreamToClient.EndRead(ar);

执行到这里的时候，提示由于线程退出或应用程序请求，已放弃 I/O 操作。

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luke100600 2014-06-09

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听了你最后一句话，解决了我一大难题呀，谢谢哥们了

air123456789 2012-06-18

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不用异步，直接无限循环来获取，就没有出错了，无语啊~~~

air123456789 2012-06-18

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[Quote=引用 9 楼的回复:]

先在 pptBeginRead 方法第一行加上一行
pptClient.GetStream().Read(pptBuffer, 0, pptBufferSize);
看看这行能不能执行过去
[/Quote]

这样子第一次接收没有提示错误，第二次接受，还是到那地方提示错误，现在我是要换个地方写咯？