Server端程式碼：

class Program
{
  static SocketListener listener;
 
  public static void Main(string[] args)
  {
    //例項化Timer類，設定間隔時間為5000毫秒；
    System.Timers.Timer t = new System.Timers.Timer(5000);
    t.Elapsed += new System.Timers.ElapsedEventHandler(CheckListen);
    //到達時間的時候執行事件； 
    t.AutoReset = true;
    t.Start();
 
    listener = new SocketListener();
    listener.ReceiveTextEvent += new SocketListener.ReceiveTextHandler(ShowText);
    listener.StartListen();
 
    Console.ReadKey();
  }
 
  private static void ShowText(string text)
  {
    Console.WriteLine(text);
  }
 
  private static void CheckListen(object sender,System.Timers.ElapsedEventArgs e)
  {
    if (listener != null && listener.Connection != null)
    {
      Console.WriteLine("連線數：" + listener.Connection.Count.ToString());
    }
  }
}
 
public class Connection
{
  Socket _connection;
 
  public Connection(Socket socket)
  {
    _connection = socket;
  }
 
  public void WaitForSendData(object connection)
  {
    try
    {
      while (true)
      {
        byte[] bytes = new byte[1024];
        string data = "";
 
        //等待接收訊息
        int bytesRec = this._connection.Receive(bytes);
 
        if (bytesRec == 0)
        {
          // ReceiveText("客戶端[" + _connection.RemoteEndPoint.ToString() + "]連線關閉...");
          break;
        }
 
        data += Encoding.UTF8.GetString(bytes,bytesRec);
        ReceiveText("收到訊息：" + data);
 
        string sendStr = "服務端已經收到資訊！";
        byte[] bs = Encoding.UTF8.GetBytes(sendStr);
        _connection.Send(bs,bs.Length,0);
      }
    }
    catch (Exception)
    {
      ReceiveText("客戶端[" + _connection.RemoteEndPoint.ToString() + "]連線已斷開...");
      Hashtable hConnection = connection as Hashtable;
      if (hConnection.Contains(_connection.RemoteEndPoint.ToString()))
      {
        hConnection.Remove(_connection.RemoteEndPoint.ToString());
      }
    }
  }
 
  public delegate void ReceiveTextHandler(string text);
  public event ReceiveTextHandler ReceiveTextEvent;
  private void ReceiveText(string text)
  {
    if (ReceiveTextEvent != null)
    {
      ReceiveTextEvent(text);
    }
  }
}
 
public class SocketListener
{
  public Hashtable Connection = new Hashtable();
 
  public void StartListen()
  {
  Agine:
    try
    {
      //埠號、IP地址
      //int port = 8889;
      //string host = "127.0.0.1";
      //IPAddress ip = IPAddress.Parse(host);
      //IPEndPoint ipe = new IPEndPoint(ip,port);
      string ip = string.Empty;
      System.Net.IPHostEntry IpEntry = System.Net.Dns.GetHostEntry(System.Net.Dns.GetHostName());
      for (int i = 0; i != IpEntry.AddressList.Length; i++)
      {
        if (!IpEntry.AddressList[i].IsIPv6LinkLocal)
        {
          ip = IpEntry.AddressList[i].ToString();
        }
      }
      IPEndPoint ipend = new IPEndPoint(IPAddress.Parse(ip),6000);
      //建立一個Socket類
      Socket s = new Socket(AddressFamily.InterNetwork,SocketType.Stream,ProtocolType.Tcp);
      s.Bind(ipend);//繫結2000埠
      s.Listen(0);//開始監聽
 
      ReceiveText("啟動Socket監聽...");
 
      while (true)
      {
        Socket connectionSocket = s.Accept();//為新建連線建立新的Socket
 
        ReceiveText("客戶端[" + connectionSocket.RemoteEndPoint.ToString() + "]連線已建立...");
 
        Connection gpsCn = new Connection(connectionSocket);
        gpsCn.ReceiveTextEvent += new Connection.ReceiveTextHandler(ReceiveText);
 
        Connection.Add(connectionSocket.RemoteEndPoint.ToString(),gpsCn);
 
        //在新執行緒中啟動新的socket連線，每個socket等待，並保持連線
        Thread thread = new Thread(gpsCn.WaitForSendData);
        thread.Name = connectionSocket.RemoteEndPoint.ToString();
        thread.Start(Connection);
      }
    }
    catch (ArgumentNullException ex1)
    {
      ReceiveText("ArgumentNullException:" + ex1);
    }
    catch (SocketException ex2)
    {
      ReceiveText("SocketException:" + ex2);
    }
 
    goto Agine;
  }
 
  public delegate void ReceiveTextHandler(string text);
  public event ReceiveTextHandler ReceiveTextEvent;
  private void ReceiveText(string text)
  {
    if (ReceiveTextEvent != null)
    {
      ReceiveTextEvent(text);
    }
  }
}

Client端程式碼：

class Program
{
  static void Main(string[] args)
  {
    Socket c;
 
    //int port = 4029;
    // 避免使用127.0.0.1,我在本機測試是不能執行的
    //string host = "127.0.0.1";
    //IPAddress ip = IPAddress.Parse(host);
    //IPEndPoint ipe = new IPEndPoint(ip,port);//把ip和埠轉化為IPEndPoint例項
    string ip = string.Empty;
    System.Net.IPHostEntry IpEntry = System.Net.Dns.GetHostEntry(System.Net.Dns.GetHostName());
    for (int i = 0; i != IpEntry.AddressList.Length; i++)
    {
      if (!IpEntry.AddressList[i].IsIPv6LinkLocal)
      {
        ip = IpEntry.AddressList[i].ToString();
      }
    }
    IPEndPoint ipend = new IPEndPoint(IPAddress.Parse(ip),6000);
 
    c = new Socket(AddressFamily.InterNetwork,ProtocolType.Tcp);//建立一個Socket
 
    try
    {
      c.Connect(ipend);//連線到伺服器
 
      Console.WriteLine("連線到Socket服務端...");
 
      Console.WriteLine("傳送訊息到服務端...");
      string sendStr = "m s g";
      byte[] bs = Encoding.UTF8.GetBytes(sendStr);
      c.Send(bs,0);
 
      string recvStr = "";
      byte[] recvBytes = new byte[1024];
      int bytes;
      bytes = c.Receive(recvBytes,recvBytes.Length,0);//從伺服器端接受返回資訊
      recvStr += Encoding.UTF8.GetString(recvBytes,bytes);
 
      Console.WriteLine("伺服器返回資訊：" + recvStr);
    }
    catch (ArgumentNullException ex1)
    {
      Console.WriteLine("ArgumentNullException:{0}",ex1);
    }
    catch (SocketException ex2)
    {
      Console.WriteLine("SocketException:{0}",ex2);
    }
 
    Console.ReadKey();
  }
}

以上就是本文的全部內容，希望對大家的學習有所幫助，也希望大家多多支援我們。