C#Socket 聊天室

服务端：

********************************************************************************

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Threading;
using System.Net.Sockets;
using System.Net;

namespace renycForm
{
    public partial class Server : Form
    {
        public Server()
        {
            InitializeComponent();
        }
        Thread LisThread;
        Socket LisSocket;
        Socket newSocket;
        EndPoint point;
        string strmes = String.Empty;
        int port = 8899;//定义侦听端口号

        private void btListen_Click(object sender, EventArgs e)
        {
            LisThread = new Thread(new ThreadStart(BeginListern));//开线程执行BeginListern方法
            LisThread.Start();//线程开始执行
        }
        public IPAddress GetIP()
        {     /*获取本地服务器的ip地址  */
            IPHostEntry iep = Dns.GetHostEntry(Dns.GetHostName());
            IPAddress ip = IPAddress.Parse("169.254.238.154");
            return ip;
        }
        public 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 */
            //toolStripStatusLabel1.Text = iep.ToString() + "正在监听";fe80::ecb5:8ecb:e765:ee9a%11
            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[1024];
                    newSocket.Receive(byteMessage);//接收信息
                    //MessageBox.Show(Encoding.Default.GetString(byteMessage));
                    Control.CheckForIllegalCrossThreadCalls = false;
                    point = newSocket.RemoteEndPoint;//获取客户端的Socket的相关信息
                    IPEndPoint IPpoint = (IPEndPoint)point;
                    strmes += IPpoint.Address.ToString() + " " + DateTime.Now.ToString() + "说:/r/n" + Encoding.Default.GetString(byteMessage).Trim(new char[] { '/0' }) + "/r/n";
                    this.RtRecive.Text = strmes;
                }
                catch (SocketException ex)
                {
                    //toolStripStatusLabel1.Text += ex.ToString();
                }
            }
        }
        private void BtCancle_Click(object sender, EventArgs e)
        {
            try
            {
                LisSocket.Close();//关闭Socket
                LisThread.Abort();//线程停止
                LisThread = null;
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
            finally
            {
                Application.Exit();
            }
        }
        private void btSend_Click(object sender, EventArgs e)
        {
            byte[] byteData = Encoding.Default.GetBytes(this.RtSend.Text);
            newSocket.Send(byteData);//发送信息即由服务器往客户端上发信息
            this.RtSend.Text = null;
        }
    }
}

 

客户端：

**********************************************************************************

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Net.Sockets;
using System.Net;
using System.Threading;

namespace RenSocket_Client
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        public static Socket ClientSocket;

        private void btContent_Click(object sender, EventArgs e)
        {
            ClientSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
            string ip = "169.254.238.154";//服务器ip
            IPAddress ipa = IPAddress.Parse(ip);
            IPEndPoint iep = new IPEndPoint(ipa, 8899);
            //this.toolStripStatusLabel1.Text = "已经建立连接.";
            Control.CheckForIllegalCrossThreadCalls = false;/*如果尝试访问控件的方法或属性之一的线程不是创建该控件的线程，
                                                             * 则通常会导致不可预知的结果。
                                                             * 通常，无效的线程活动是对访问控件的 Handle 属性的错误线程的调用。
                                                             * 将 CheckForIllegalCrossThreadCalls 设置为 true 可以在调试时更容易查找并诊断此线程活动。
                                                             * 请注意在调试器外部启动应用程序时，非法跨线程调用将始终引发异常。*/
            try
            {
                ClientSocket.Connect(iep);//连接到服务器
                Thread thread = new Thread(new ThreadStart(targett));
                thread.Start();
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }

        }

        private void btSend_Click(object sender, EventArgs e)
        {
            if (ClientSocket.Connected)//判断Socket是否已连接
            {

                byte[] SendMessage = new byte[100];
                SendMessage = Encoding.ASCII.GetBytes(this.RtSend.Text);
                ClientSocket.Send(SendMessage);//从数据中的指示位置开始将数据发送到连接的Socket。
                //MessageBox.Show(Encoding.Default.GetString(SendMessage) + "发送成功!");
                this.RtSend.Text = null;
            }
            else
            {
                MessageBox.Show("未建立连接！");
            }

        }
        public void targett()
        {
            //this.toolStripStatusLabel1.Text = "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);
                this.RtRecive.AppendText("服务器对客户端说: /r/n" + strev + "/r/n");
            }
        }

        private void btExit_Click(object sender, EventArgs e)
        {
            ClientSocket.Shutdown(SocketShutdown.Both);//发送完成之后停止Socket
            ClientSocket.Close();//发送完成之后关闭Socket
            Application.Exit();

        }
    }
}