新建两个Form程序
引用命名空间：using System.Net; using System.Net.Sockets;
Server 端：
放两个Button和两个TextBox
public partial class Form1 : Form
{
Socket s = null;
IPEndPoint iep = null;
byte[] buf = new byte[1024];
Socket worker = null;
public Form1()
{
InitializeComponent();
Control.CheckForIllegalCrossThreadCalls = false;
}
private void button1_Click(object sender,EventArgs e)
{
//创建一个通道
s = new Socket(AddressFamily.InterNetwork,SocketType.Stream,ProtocolType.Tcp);
//创建一个侦听点
iep = new IPEndPoint(IPAddress.Any,20000);
//绑定到通道上
s.Bind(iep);
//侦听
s.Listen(6);
//通过异步来处理
s.BeginAccept(new AsyncCallback(Accept),s);
this.button1.Visable = false;
}
void Accept(IAsyncResult ia)
{
s = ia.AsyncState as Socket;
worker = s.EndAccept();
s.BeginAccept(new AsyncCallback(Accept),s);
try
{
worker.BeginReceive(buf,0,buf.Length,Socket.Flogs.None, new AsyncCallback(Receive),worker);
}
catch
{ throw ;}
}
void Receive(IAsyncResult ia)
{
worker = ia.AsyncState as Socket;
int count = worker.EndReceive(ia);
worker.BeginReceive(buf,0,buf.Length,Socket.Flogs.None,new AsyncCallback(Receive),worker);
string context = Encoding.GetEncoding("gb2312").GetString(buf,0,count);
this.textbox1.text += Environment.NewLine;
this.textbox1.text += context;
}
private void button2_Click(object sender, EventArgs e)
{
string context ="XXXXX" + this.textbox2.Text.Trim();
if(context != "")
{
this.textbox1.Text += Environment.NewLine;
this.textbox1.Text += context;
this.textbox2.Text = "";
worker.Send(Encoding.GetEncoding("gb2312").GetBytes(context));
}
}
}
客户端：
主要代码：
public partial class Form1 : Form
{
Socket s = null;
IPEndPoint iep = null;
byte[] buf = new byte[1024];
public Form1()
{
InitializeComponent();
Control.CheckForIllegalCrossThreadCalls = false;
}
private void button1_Click(object sender,EventArgs e)
{
s = new Socket(AddressFamily.InterNetwork,SocketType.Stream,ProtocolType.Tcp);
iep = new IPEndPoint(IPAddress.Parse("127.0.0.1"),20000);
try
{
s.Connect(iep);
this.label1.Text = "连接成功";
this.button1.Visable =false;
}
catch
{ throw ;}
}
private void button2_Click(object sender, EventArgs e)
{
string context = iep.ToString() + ":" + this.textbox2.Text.Trim();
if(context != "")
{
this.textbox1.Text += Environment.NewLine;
this.textbox1.Text += context;
this.tetxbox2.Text ="";
s.Send(Encoding.GetEncoding("gb2312").GetBytes(context));
try
{
s.BeginReceive(buf,0,buf.Length,Socket.Flogs.None, new AsyncCallback(Receive),s);
}
catch
{ throw ;}
}
}
void Receive(IAsynvResult ia)
{
s = ia.AsyncState as Socket;
int count = s.EndReceive(ia);
s.BeginReceive(buf,0,buf.Length,Socket.Flogs.None, new AsyncCallback(Receive),s);
string context =Encoding.GetEncoding("gb2312").GetString(buf,0,count);
this.textbox1.Text += Environment.NewLine;
this.textbox1.Text += context;
}
}