Question

我在使用C＃TcpClient发送数据时遇到问题。

这就是我的代码的样子：

        public Connection()
    {
        try
        {
            client = new TcpClient("127.0.0.1", 7171);
            writer = new StreamWriter(client.GetStream());
            client.Client.NoDelay = true;
            client.NoDelay = true;

            sendFirstPacket();
            while (true)
            {
                if (client.GetStream().DataAvailable)
                    Logger.log(Log_Type.ERROR, "mam cos");

            }
            Logger.log(Log_Type.INFO, "Spoko luz");
        }
        catch (Exception ex)
        {
            Logger.log(Log_Type.ERROR, ex.Message);
        }
        finally
        {
            //client.Close();
        }
    }

    void onSendDone()
    {
    }

    void sendFirstPacket()
    {
        writer.Write((byte)10);
        writer.Write((ushort)2);
        writer.Write((ushort)854);
        UInt32[] k = new UInt32[4];

        k[0] = (12444 << 16) | 12444;
        k[1] = (12444 << 16) | 12444;
        k[2] = (12444 << 16) | 12444;
        k[3] = (12444 << 16) | 12444;

        writer.Write((byte)0); // first byte have to be 0
        writer.Write((UInt32)k[0]);
        writer.Write((UInt32)k[1]);
        writer.Write((UInt32)k[2]);
        writer.Write((UInt32)k[3]);
        writer.Flush();
        //client.GetStream().Write(
    }

不幸的是，几秒钟之后我的服务器上用“线程退出或应用程序请求”中断了“i / o操作已中止”（用C ++编写）。但是，如果我更改此代码，并将sendFirstPakcet（）放入while循环，它将发送数据包正确（我计数超过700个循环），然后异常抛出：无法将数据写入传输连接：现有连接被强制关闭远程主机。

 public Connection()
    {
        try
        {
            client = new TcpClient("127.0.0.1", 7171);
            writer = new StreamWriter(client.GetStream());
            client.Client.NoDelay = true;
            client.NoDelay = true;

            sendFirstPacket();
            while (true)
            {
                if (client.GetStream().DataAvailable)
                    Logger.log(Log_Type.ERROR, "mam cos");

                sendFirstPacket();
            }
            Logger.log(Log_Type.INFO, "Spoko luz");
        }
        catch (Exception ex)
        {
            Logger.log(Log_Type.ERROR, ex.Message);
        }
        finally
        {
            //client.Close();
        }
    }

    void onSendDone()
    {
    }

    void sendFirstPacket()
    {
        writer.Write((byte)10);
        writer.Write((ushort)2);
        writer.Write((ushort)854);
        UInt32[] k = new UInt32[4];

        k[0] = (12444 << 16) | 12444;
        k[1] = (12444 << 16) | 12444;
        k[2] = (12444 << 16) | 12444;
        k[3] = (12444 << 16) | 12444;

        writer.Write((byte)0); // first byte have to be 0
        writer.Write((UInt32)k[0]);
        writer.Write((UInt32)k[1]);
        writer.Write((UInt32)k[2]);
        writer.Write((UInt32)k[3]);
        writer.Flush();
        //client.GetStream().Write(
    }

这可能是什么原因？

Answer 1

听起来你在服务器端有问题。例如，您可能正在尝试读取比发送的字节数更多的字节，这似乎是＆＃34;固定的＆＃34;如果您快速发送许多消息。

TcpClient没有发送消息

1 个答案: