Socket通信基础

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Socket通信传递数据

服务端：

using System.Net;

using System.Net.Sockets;

using System.Text;

using System.Threading;

Thread mythread ;

Socket socket;

// 清理所有正在使用的资源。

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:";

msg+=newSocket.RemoteEndPoint.ToString()+Encoding.Default.GetString(byteMessage);

this.listBox1.Items.Add(msg);

}

catch(SocketException ex)

{

this.label1.Text+=ex.ToString();

}

// while(byteMessage!=null);

}

//开始监听

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);

}

客户端：

using System.Net;

using System.Net.Sockets;

using System.Text;

private void button1_Click(object sender, System.EventArgs e)

{

BeginSend();

}

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);

}