A19_Soket編程TCP協議通訊

/*
 * Socket(套接字)編程
 * 設備之間的識別依靠IP地址
 * 設備中進程之間的是別的靠端口號
 * TCP/IP協議 用於距離較遠的，對精準度要求高的信息傳輸
 * UDP協議用於距離較近，對信息精準度要求較低但要求速度快的信息傳輸
 * 
 * 
 * **/
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

using System.Threading;
using System.Net;
using System.Net.Sockets;


namespace A18_SocketProgram
{
    class Server
    {
        private Socket _SockServer;                    //服務器監聽套接字
        private bool _IsListenContecion = true;         //是否在監聽（目的是方便退出）

        public Server()
        {
            Console.WriteLine("---------------服務端啓動-----------------");
            //定義網絡終結點（封裝IP與端口）
            IPEndPoint endPoint = new IPEndPoint(IPAddress.Parse("127.0.0.1"),1000);
            //實例化套接字
            _SockServer = new Socket(AddressFamily.InterNetwork,SocketType.Stream,ProtocolType.Tcp);

            //服務器端綁定地址
            _SockServer.Bind(endPoint);
            
            //開始監聽
            //.......
            _SockServer.Listen(10); //10表示服務器監聽隊列最大長度
            
            try
            {
                while (_IsListenContecion)
                {
                    //Accept()接收客戶端的鏈接，這個方法會阻斷當前線程的運行
                    Socket sockMsgServer = _SockServer.Accept();
                    Console.WriteLine("有一個客戶端連接");

                    //開啓後臺線程進行與客戶端的會話
                    Thread thClientMsg = new Thread(ClientMsg);
                    thClientMsg.IsBackground = true; // 定義會話線程爲後臺線程。
                    thClientMsg.Name = "thClientMsg";
                    thClientMsg.Start(sockMsgServer);
                }
            }
            catch (Exception)
            {
            }
        }

        //服務器與客戶端的通訊後臺線程
        [Obsolete("這個方法有瑕疵")]
        private void ClientMsgOld(object sockMsg)
        {
            Socket socketMsg = sockMsg as Socket; //通訊Socket

            //準備一個“數據緩存”
            while (true)
            {
                byte[] msgArray = new byte[1024 * 1024]; //1M空間
                //接收客戶端發來的數據，返回真實的長度
                int trueClinetMsgLength = socketMsg.Receive(msgArray);
                //byte數組轉String
                string strMsg = Encoding.UTF8.GetString(msgArray, 0, trueClinetMsgLength);

                //顯示客戶端發來的數據
                Console.WriteLine("客戶端發來的數據：" + strMsg);

            }
        }

        //服務器與客戶端的通訊後臺線程
        private void ClientMsg(object sockMsg)
        {
            Socket socketMsg = sockMsg as Socket; //通訊Socket

            //準備一個“數據緩存”
            while (true)
            {
                byte[] msgArray = new byte[1024 * 1024]; //1M空間
                //接收客戶端發來的數據，返回真實的長度
                int trueClinetMsgLength = socketMsg.Receive(msgArray);
                //byte數組轉String
                string strMsg = Encoding.UTF8.GetString(msgArray,0,trueClinetMsgLength);
                //接到斷開連接的信息
                if (strMsg == "gm_exit")
                {
                    Console.WriteLine("客戶端斷開連接");
                    break;
                }
                //顯示客戶端發來的數據
                Console.WriteLine("客戶端發來的數據：" + strMsg);

            }
        }


        static void Main(string[] args)
        {
            Server obj = new Server();
        }
    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

using System.Threading;
using System.Net;
using System.Net.Sockets;

namespace A19_SocketdProgram_Client
{
    class Client
    {
        private Socket _SockClient;         //客戶端通訊套接字
        private IPEndPoint serverEndPoint;  //連接到的服務器IP與端口信息

        public Client()
        {
            //通訊地址端口號
            serverEndPoint = new IPEndPoint(IPAddress.Parse("127.0.0.1"), 1000);
            //建立客戶端的Sockte
            _SockClient = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);

            try
            {
                _SockClient.Connect(serverEndPoint);
            }
            catch (Exception)
            {
            }
            Console.WriteLine("連接服務器成功！！");
        }

        //向服務器發送信息
        [Obsolete("這個方法有瑕疵")]
        public void SendMsgOld()
        {
            while (true)
            {
                //輸入信息
                string strMsg = Console.ReadLine();
                //退出
                if (strMsg == "gm_exit")
                {
                    break;
                }
                //字節轉換
                Byte[] byteArray = Encoding.UTF8.GetBytes(strMsg);
                //發送數據
                _SockClient.Send(byteArray);

                Console.WriteLine("我： " + strMsg);
            }
            //關閉連接
            _SockClient.Shutdown(SocketShutdown.Both);
            //清理連接的資源
            _SockClient.Close();
        }



        //向服務器發送信息
        public void SendMsg()
        {
            while (true)
            {
                //輸入信息
                string strMsg = Console.ReadLine();

                //字節轉換
                Byte[] byteArray = Encoding.UTF8.GetBytes(strMsg);
                //發送數據
                _SockClient.Send(byteArray);
                //退出
                if (strMsg == "gm_exit")
                {
                    break;
                }
                Console.WriteLine("我： " + strMsg);
            }
            //關閉連接
            _SockClient.Shutdown(SocketShutdown.Both);
            //清理連接的資源
            _SockClient.Close();
        }

        static void Main(string[] args)
        {
            Client obj = new Client();
            obj.SendMsg();
            //obj.SendMsg();
        }
    }
}

Server類和Client類分別在不同的啓動項中