unity 客户端 服务端 连接

 //分别创建了两个线程客户端 服务器连接的简单示例

 using UnityEngine;

 using System;

 using System.Collections;

 using System.Threading;

 using System.Net.Sockets;

 using System.Net;

 using System.Text;

 public class TCPIPClientServer : MonoBehaviour

 {

     void Start()

     {

         Debug.Log(GetIP().ToString());

     }

     public static Socket ClientSocket;

     private void InitConnect()

     {

         ClientSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);

         string ip = GetIP().ToString();//服务器ip

         IPAddress ipa = IPAddress.Parse(ip);

         IPEndPoint iep = new IPEndPoint(ipa, 8000);

         try

         {

             ClientSocket.Connect(iep);//连接到服务器

             Thread thread = new Thread(new ThreadStart(ClientReceive));

             thread.Start();

         }

         catch (Exception ex)

         {

             Debug.Log(ex.Message);

             clientReceiveValue = ex.Message;

         }

     }



     /*接收来自服务器上的信息*/

     public void ClientReceive()

     {

         clientReceiveValue = "已经建立连接准备接受数据";

         while (true)

         {

             byte[] bytes = new byte[100];

             int rev = ClientSocket.Receive(bytes, bytes.Length, 0);//将数据从连接的   Socket   接收到接收缓冲区的特定位置。

             if (rev <= 0)

             {

                 break;

             }

             string strev = System.Text.Encoding.Default.GetString(bytes);

             clientReceiveValue = ("服务器对客户端说:" + strev + "\r\n");

         }

     }





     private void ClientSend()

     {

         if (ClientSocket.Connected)//判断Socket是否已连接

         {



             byte[] SendMessage = new byte[100];

             SendMessage = Encoding.ASCII.GetBytes(clientSendValue);

             ClientSocket.Send(SendMessage);//从数据中的指示位置开始将数据发送到连接的Socket。



         }

         else

         {

             Debug.Log("未建立连接！");

             clientSendValue = "未建立连接！";

         }

     }



     private string clientReceiveValue = "";

     private string clientSendValue = "";

     private string serverReceiveValue = "";

     private string serverSendValue = "";

     void OnGUI()

     {

         //服务器

         GUI.TextField(new Rect(100, 100, 200, 50), serverReceiveValue);

         if (GUI.Button(new Rect(310, 100, 100, 20), "开始监听"))

         {

             Listen();

         }

         serverSendValue = GUI.TextField(new Rect(100, 150, 200, 40), serverSendValue);

         if (GUI.Button(new Rect(310, 150, 100, 20), "服务器发送"))

         {

             SeverSend();

         }



         ///客户端

         GUI.TextField(new Rect(100, 350, 200, 40), clientReceiveValue);

         if (GUI.Button(new Rect(310, 350, 100, 20), "连接服务器"))

         {

             InitConnect();



         }



         clientSendValue = GUI.TextField(new Rect(100, 400, 200, 40), clientSendValue);

         if (GUI.Button(new Rect(310, 400, 100, 20), "客户端发送"))

         {

             ClientSend();

         }

     }





     Thread LisThread;

     Socket LisSocket;

     Socket newSocket;

     EndPoint point;

     string strmes = String.Empty;

     int port = 8000;//定义侦听端口号

     private void Listen()

     {

         LisThread = new Thread(new ThreadStart(BeginListern));//开线程执行BeginListern方法

         LisThread.Start();//线程开始执行

         serverReceiveValue = GetIP().ToString() + "正在监听 ";

     }



     private void BeginListern()

     {

         LisSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);//实例化Socket

         IPAddress ServerIp = GetIP();/*获取本地服务器的ip地址  */

         IPEndPoint iep = new IPEndPoint(ServerIp, port);



         LisSocket.Bind(iep); /*将Socket绑定ip */

         LisSocket.Listen(50); //Socket开始监听

         newSocket = LisSocket.Accept();//获取连接请求的Socket

         /*接收客户端Socket所发的信息  */

         while (true)

         {

             try

             {



                 byte[] byteMessage = new byte[100];

                 newSocket.Receive(byteMessage);//接收信息

                 point = newSocket.RemoteEndPoint;//获取客户端的Socket的相关信息

                 IPEndPoint IPpoint = (IPEndPoint)point;

                 strmes += IPpoint.Address.ToString() + "说" + Encoding.Default.GetString(byteMessage).Trim(new char[] { '\0' }) + "\r\n";

                 serverReceiveValue = strmes;

             }



             catch (SocketException ex)

             {

                 Debug.Log(ex.ToString());

                 serverReceiveValue = ex.ToString();

             }

         }

     }



     private IPAddress GetIP()

     {     /*获取本地服务器的ip地址  */

         IPHostEntry iep = Dns.GetHostEntry(Dns.GetHostName());

         IPAddress ip = iep.AddressList[0];

         return ip;

     }



     private void SeverSend()

     {

         byte[] byteData = Encoding.Default.GetBytes(serverSendValue);

         newSocket.Send(byteData);//发送信息即由服务器往客户端上发信息

     }



 }