EchoServer

using System;
using System.Net.Sockets;
using System.IO;
using System.Net;

namespace ConsoleApplication1
{
    class EchoServer
    {
        public static void Main11()
        {
            // TcpListener监听端口1234
            IPAddress ipAd = IPAddress.Parse("192.168.1.158");
            TcpListener tcpListener = new TcpListener(ipAd,5555);
            tcpListener.Start();
            Console.WriteLine("Server Started");
            // 接收新的连接
            Socket socketForClient = tcpListener.AcceptSocket();
            try
            {
                if (socketForClient.Connected)
                {
                    while (true)
                    {
                        // 用StreamWriter和StreamReader类来读写数据
                        // 服务器读取客户端发送的信息，把它变成大写形式回应给客户端
                        Console.WriteLine("Client connected");
                        NetworkStream networkStream = new NetworkStream(socketForClient);
                        StreamWriter streamWriter = new StreamWriter(networkStream);
                        StreamReader streamReader = new StreamReader(networkStream);
                        string line = streamReader.ReadLine();
                        Console.WriteLine("Read:" + line);
                        line = line.ToUpper() + "!";
                        streamWriter.WriteLine(line);
                        Console.WriteLine("Write:" + line);
                        streamWriter.Flush();
                    }
                }
                socketForClient.Close();
                Console.WriteLine("Exiting...");
            }
            catch (Exception e)
            {
                Console.WriteLine(e.ToString());
            }
        }
    }
}