Question

我是套接字编程C＃的新手。我试图在两台计算机之间建立聊天服务器，但我无法做到这一点，因为我无法启动我的Socket .....我给了服务器程序我的IP地址，但给了我一个例外......“请求的地址是在其上下文中无效“......这是代码：

        IPAddress hostIPAddress = IPAddress.Parse("178.189.27.85");
        TcpListener serverSocket = new TcpListener(hostIPAddress, 8888);
        int requestCount = 0;
        TcpClient clientSocket = default(TcpClient);
        serverSocket.Start();
        Console.WriteLine(" >> Server Started");
        clientSocket = serverSocket.AcceptTcpClient();
        Console.WriteLine(" >> Accept connection from client");
        requestCount = 0;

        while ((true))
        {
            try
            {
                requestCount = requestCount + 1;
                NetworkStream networkStream = clientSocket.GetStream();
                byte[] bytesFrom = new byte[10025];
                networkStream.Read(bytesFrom, 0, (int)clientSocket.ReceiveBufferSize);
                string dataFromClient = System.Text.Encoding.ASCII.GetString(bytesFrom);
                dataFromClient = dataFromClient.Substring(0, dataFromClient.IndexOf("$"));
                Console.WriteLine(" >> Data from client - " + dataFromClient);
                string serverResponse = "Last Message from client" + dataFromClient;
                Byte[] sendBytes = Encoding.ASCII.GetBytes(serverResponse);
                networkStream.Write(sendBytes, 0, sendBytes.Length);
                networkStream.Flush();
                Console.WriteLine(" >> " + serverResponse);
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.ToString());
            }
        }

        clientSocket.Close();
        serverSocket.Stop();
        Console.WriteLine(" >> exit");
        Console.ReadLine();

客户端程序

try {
        TcpClient tcpclnt = new TcpClient();
        Console.WriteLine("Connecting.....");

        tcpclnt.Connect("192.168.128.1",8888);
        // use the ipaddress as in the server program

        Console.WriteLine("Connected");
        Console.Write("Enter the string to be transmitted : ");

        String str=Console.ReadLine();
        Stream stm = tcpclnt.GetStream();

        ASCIIEncoding asen= new ASCIIEncoding();
        byte[] ba=asen.GetBytes(str);
        Console.WriteLine("Transmitting.....");

        stm.Write(ba,0,ba.Length);

        byte[] bb=new byte[100];
        int k=stm.Read(bb,0,100);

        for (int i=0;i<k;i++)
            Console.Write(Convert.ToChar(bb[i]));

        tcpclnt.Close();
    }

    catch (Exception e) {
        Console.WriteLine("Error..... " + e.StackTrace);
    }

Answer 1

IPAddress hostIPAddress = IPAddress.Parse("178.189.27.85");

您的计算机实际上是否在公共互联网上？我希望你的电脑有私人IP（例如192.168.x.y，172.16-32.x.y，10.x.y.z），除非它直接连接到你的网络连接。

假设您使用的是Windows，请使用命令提示符并运行ipconfig，或访问“控制面板”并查找您的网络设置。例如，在Windows 7上，它位于“更改适配器设置”下的“网络和共享中心”中;查找活动适配器，右键单击并选择“状态”。

找到本地IP地址后，请使用该地址。或者您可以使用0.0.0.0作为通配符地址 - 实际上是说“只需接受来自任何地方的连接，我不关心我的IP地址是什么。”

在我的IP地址打开套接字时出现异常

1 个答案: