这个我正好做过,把代码给出粘过来吧,记得把分给我. (后边有图片的)
服务器端程序:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
using System.Net;
using System.Net.Sockets;
using System.Windows.Forms;
namespace WindowsFormsApplication2
{
public partial class Form1 : Form
{
private static TcpListener listener;
private static Socket clientsocket;
private static IPEndPoint listenPort;
private static Thread clientservice;
delegate void setTextSring(string str);
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
string port = textBox1.Text;
if (port == "")
{
MessageBox.Show("请输入监听端口");
return;
}
try
{
if (Int32.Parse(port) > 0)
{
listenPort = new IPEndPoint(IPAddress.Any, Int32.Parse(port));
Thread thr = new Thread(new ThreadStart(StartListening));
thr.Start();
}
else
MessageBox.Show("监听端口号必须大于0，建议使用大于1024的端口");
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
private void StartListening()
{
listener = new TcpListener(listenPort);
SetText("IP: " + Convert.ToString(listenPort) + "\r\n");
listener.Start();
MessageBox.Show("服务已启动。。。");
while (true)
{
try
{
Socket s = listener.AcceptSocket();
clientsocket = s;
clientservice = new Thread(new ThreadStart(ServiceClient));
clientservice.Start();
}
catch (Exception e)
{
MessageBox.Show(e.ToString());
}
}
}
private void SetText(string str)
{
if (textBox2.InvokeRequired)
{
setTextSring sts = new setTextSring(SetText);
Invoke(sts, new object[] { str });
}
else
{
this.textBox2.Text += str;
}
}
public static string byteToHexStr(byte[] bytes)
{
string returnStr = "";
if (bytes != null)
{
for (int i = 0; i < bytes.Length; i++)
{
returnStr += bytes[i].ToString("X2") + " ";
}
}
return returnStr;
}
private void ServiceClient()
{
Socket client = clientsocket;
bool keepalive = true;
while (keepalive)
{
byte[] buffer = new Byte[60];
client.Receive(buffer);
string clientcommand = byteToHexStr(buffer);
clientcommand += "\r\n";
SetText(clientcommand);
}
}
private static void SendToClient(Socket cli, string str)
{
Byte[] sendbytes = System.Text.Encoding.UTF8.GetBytes(str.ToCharArray());
cli.Send(sendbytes);
}
}
}
客户端程序:
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;
using System.Net.Sockets;
using System.Threading;
using System.IO;
namespace WindowsFormsApplication3
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private TcpClient clientsocket;
private NetworkStream ns;
private StreamReader sr;
private bool bConn = false;
private string clientname = "";
private Thread t;
private void button2_Click(object sender, EventArgs e)
{
string ip = textBox1.Text;
int port = Int32.Parse(textBox2.Text);
if (port > 0)
{
if (!EstablishConnection(ip, port))
return;
}
else
{
MessageBox.Show("duankouhaodayu0");
return;
}
t = new Thread(new ThreadStart(recivechat));
t.Start();
MessageBox.Show("连接成功！");
}
private bool EstablishConnection(string IP, int port)
{
try
{
clientsocket = new TcpClient(IP, port);
ns = clientsocket.GetStream();
sr = new StreamReader(ns);
bConn = true;
return true;
}
catch (Exception e)
{
MessageBox.Show(e.ToString());
}
return false;
}
private void recivechat()
{
bool keeplive = true;
while (keeplive)
{
try
{
Byte[] buffer = new Byte[2048];
ns.Read(buffer, 0, buffer.Length);
string chatter = System.Text.Encoding.UTF8.GetString(buffer);
textBox4.Text += chatter;
}
catch (Exception e)
{
MessageBox.Show(e.ToString());
}
}
}
private void button1_Click(object sender, EventArgs e)
{
string msg = textBox3.Text;
Byte[] outbytes = System.Text.Encoding.UTF8.GetBytes(msg.ToCharArray());
ns.Write(outbytes, 0, outbytes.Length);
MessageBox.Show("发送成功！");
}
}
}
我把程序的界面图片给你,你参考下
有现成的类似QQ的源代码
一个服务器，多个客户端可以连接，要就hi我，我一直在线
我有一个类似的案例，你的邮箱
我的邮箱是 yinzuo1988@163.com
晚上发给你，在宿舍里。。。
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