Socket基本编程

两台机器的聊天程序!服务端打开,准备接受客户端数据,然后在另外一台机器上运行客户端,
输入服务端IP,端口,就可以聊天了.

===Client客户端===

using System;
 using ;
 using .Sockets;
 using System.Text;
 //客户端
 class SocketClientTester
 { 
 
   private void BeginSend()
   {   
    string ip=this.txtip.Text;
    string port=this.txtport.Text;
    IPAddress serverIp=IPAddress.Parse(ip);   
    int serverPort=Convert.ToInt32(port);
    IPEndPoint iep=new IPEndPoint(serverIp,serverPort);  
    byte[] byteMessage;  
 //   do
 //   { 
 
     Socket socket=new Socket(AddressFamily.InterNetwork,SocketType.Stream,ProtocolType.Tcp);
     socket.Connect(iep);   
     byteMessage=Encoding.ASCII.GetBytes(textBox1.Text);
     socket.Send(byteMessage);
     socket.Shutdown(SocketShutdown.Both);
     socket.Close();
 //   }
 //   while(byteMessage!=null);
  
   }
   private void button1_Click(object sender, System.EventArgs e)
   { 
 
    BeginSend();  
   }
  
 }

===Server服务器端===

using System;
 using ;
 using .Sockets;
 using System.Text;
   using System.Threading;class SocketTester   //Server(Port:8000)
 { 
 
   Thread mythread ;
   Socket socket;
  
   protected override void Dispose( bool disposing )
   { 
 
    try 
 　   { 　　   
 　　   socket.Close();//释放资源 
 　　   mythread.Abort ( ) ;//中止线程 
 　   } 
 　   catch{ } 
  
    if( disposing )
    { 
 
     if (components != null) 
     { 
 
      components.Dispose();
     }
    }
    base.Dispose( disposing );
   }
  public static IPAddress GetServerIP()
  { 
 
   IPHostEntry ieh=Dns.GetHostByName(Dns.GetHostName());
   return ieh.AddressList[0];
  }
   private void BeginListen()
   { 
 
    IPAddress ServerIp=GetServerIP();
    IPEndPoint iep=new IPEndPoint(ServerIp,8000);
    socket=new Socket(AddressFamily.InterNetwork,SocketType.Stream,ProtocolType.Tcp);
    
    byte[] byteMessage=new byte[100];  
    this.label1.Text=iep.ToString();
  
    socket.Bind(iep);  
 //   do
    while(true)
    { 
 
     try
     { 
 
      socket.Listen(5);
      Socket newSocket=socket.Accept();
      newSocket.Receive(byteMessage);
  
      string sTime = DateTime.Now.ToShortTimeString ( ) ;
      string msg=sTime+":"+"Message from:"+newSocket.RemoteEndPoint.ToString()+Encoding.Default.GetString(byteMessage);
      this.listBox1.Items.Add(msg);
      
     }
     catch(SocketException ex)
     { 
 
      this.label1.Text+=ex.ToString();
     }
    }
 //   while(byteMessage!=null);
   }
   private void button1_Click(object sender, System.EventArgs e)
   { 
 
    try
    { 
 
     mythread = new Thread(new ThreadStart(BeginListen));
     mythread.Start();
  
    }
    catch(System.Exception er)
    { 
 
     MessageBox.Show(er.Message,"完成",MessageBoxButtons.OK,MessageBoxIcon.Stop);
    }            
   }
   private void btnexit_Click(object sender, System.EventArgs e)
   { 
 
    if(mythread!=null)
    { 
 
     if(mythread.IsAlive)
     { 
 
      mythread.Abort();
     }
    }
    Application.Exit() ;
   }
  }