TCP Client 及 Server 示例

Client 端 Code：

public class TcpTimeClient
{
    private const int portNum = 13;
    private const string hostName = "LocalHost";

    public static int Main(String[] args)
    {
        try
        {
            TcpClient client = new TcpClient(hostName, portNum);

            NetworkStream ns = client.GetStream();

            byte[] bytes = new byte[1024];
            int bytesRead = ns.Read(bytes, 0, bytes.Length);

            Console.WriteLine(Encoding.ASCII.GetString(bytes, 0, bytesRead));

            Console.ReadKey();
            client.Close();

        }
        catch (Exception e)
        {
            Console.WriteLine(e.ToString());
        }
       
        return 0;
    }
}

Server 端 Code：

public class TcpTimeServer
{

    private const int portNum = 13;

    public static int Main(String[] args)
    {
        bool done = false;

        TcpListener listener = new TcpListener(portNum);

        listener.Start();

        while (!done)
        {
            Console.Write("Waiting for connection...");
            TcpClient client = listener.AcceptTcpClient(); // 等待客户端连接

            Console.WriteLine("Connection accepted.");
            NetworkStream ns = client.GetStream();

            byte[] byteTime = Encoding.ASCII.GetBytes(DateTime.Now.ToString());

            try
            {
                ns.Write(byteTime, 0, byteTime.Length);
                ns.Close();
                client.Close();
            }
            catch (Exception e)
            {
                Console.WriteLine(e.ToString());
            }
        }

        listener.Stop();

        return 0;
    }

}