C#UDP聊天程序

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http://community.csdn.net/Expert/topic/4022/4022940.xml?temp=.5879633

服务端

using System;

using System.Net;

using System.Net.Sockets;

using System.Text;

using System.Collections;

class UdpSocketServer

{

public static void Main()

{

IPEndPoint localEP = new IPEndPoint(IPAddress.Parse("127.0.0.1"), 9060);

ArrayList list = new ArrayList(10);

Socket server = new Socket(AddressFamily.InterNetwork,

SocketType.Dgram, ProtocolType.Udp);

server.Bind(localEP);

EndPoint remoteEP = new IPEndPoint(IPAddress.Any, 0);

int recv;

byte[] data;

while(true)

{

data = new byte[1024];

recv =0;

recv = server.ReceiveFrom(data, ref remoteEP);

Console.WriteLine("Waiting for a client

");

String message = Encoding.ASCII.GetString(data, 0, recv);

switch (message)

{

case "join" :

Console.WriteLine("Received from {0}: ", remoteEP.ToString());

list.Add(remoteEP);

break;

case "quit" :

list.Remove(remoteEP);

break;

default :

int i =0;

String Data = Encoding.ASCII.GetString(data);

while (i < list.Count)

{

server.SendTo(Encoding.ASCII.GetBytes(Data), recv, SocketFlags.None, (EndPoint) list[i]);

++i;

}

break;

}

客户端

using System;

using System.Drawing;

using System.Collections;

using System.ComponentModel;

using System.Windows.Forms;

using System.Data;

using System.Threading;

using System.Net;

using System.Net.Sockets;

using System.Text;

namespace chatClient

{

/// <summary>

/// Summary description for Form1.

/// </summary>

public class Form1 : System.Windows.Forms.Form

{

private System.Windows.Forms.Label label1;

private System.Windows.Forms.TextBox txtIP;

private System.Windows.Forms.Label label2;

private System.Windows.Forms.TextBox txtPort;

private System.Windows.Forms.Label label3;

private System.Windows.Forms.TextBox txtName;

private System.Windows.Forms.Button btnJoin;

private System.Windows.Forms.Button btnQuit;

private System.Windows.Forms.GroupBox groupBox1;

private System.Windows.Forms.TextBox txtOut;

private System.Windows.Forms.Button btnSend;

private System.Windows.Forms.GroupBox groupBox2;

/// <summary>

/// Required designer variable.

/// </summary>

///

Socket client;

EndPoint remoteEP;

byte[] data;

string input;

int recv;

private System.Windows.Forms.TextBox txtIn;

private System.ComponentModel.Container components = null;

public Form1()

{

// Required for Windows Form Designer support

InitializeComponent();

// TODO: Add any constructor code after InitializeComponent call

}

/// <summary>

/// Clean up any resources being used.

/// </summary>

protected override void Dispose( bool disposing )

{

if( disposing )

{

if (components != null)

{

components.Dispose();

}

base.Dispose( disposing );

}

#region Windows Form Designer generated code

/// <summary>

/// Required method for Designer support - do not modify

/// the contents of this method with the code editor.

/// </summary>

private void InitializeComponent()

{

this.label1 = new System.Windows.Forms.Label();

this.txtIP = new System.Windows.Forms.TextBox();

this.label2 = new System.Windows.Forms.Label();

this.txtPort = new System.Windows.Forms.TextBox();

this.label3 = new System.Windows.Forms.Label();

this.txtName = new System.Windows.Forms.TextBox();

this.btnJoin = new System.Windows.Forms.Button();

this.btnQuit = new System.Windows.Forms.Button();

this.groupBox1 = new System.Windows.Forms.GroupBox();

this.txtOut = new System.Windows.Forms.TextBox();

this.btnSend = new System.Windows.Forms.Button();

this.groupBox2 = new System.Windows.Forms.GroupBox();

this.txtIn = new System.Windows.Forms.TextBox();

this.groupBox1.SuspendLayout();

this.groupBox2.SuspendLayout();

this.SuspendLayout();

// label1

this.label1.Location = new System.Drawing.Point(8, 8);

this.label1.Name = "label1";

this.label1.Size = new System.Drawing.Size(56, 24);

this.label1.TabIndex = 0;

this.label1.Text = "ServerIP : ";

this.label1.TextAlign = System.Drawing.ContentAlignment.MiddleRight;

// txtIP

this.txtIP.Location = new System.Drawing.Point(72, 8);

this.txtIP.Name = "txtIP";

this.txtIP.Size = new System.Drawing.Size(144, 20);

this.txtIP.TabIndex = 1;

this.txtIP.Text = " ";

// label2

this.label2.Location = new System.Drawing.Point(240, 8);

this.label2.Name = "label2";

this.label2.Size = new System.Drawing.Size(64, 24);

this.label2.TabIndex = 2;

this.label2.Text = "Port NO :";

this.label2.TextAlign = System.Drawing.ContentAlignment.MiddleRight;

// txtPort

this.txtPort.Location = new System.Drawing.Point(312, 8);

this.txtPort.Name = "txtPort";

this.txtPort.Size = new System.Drawing.Size(72, 20);

this.txtPort.TabIndex = 3;

this.txtPort.Text = " ";

// label3

this.label3.Location = new System.Drawing.Point(8, 40);

this.label3.Name = "label3";

this.label3.Size = new System.Drawing.Size(56, 24);

this.label3.TabIndex = 4;

this.label3.Text = "Name :";

this.label3.TextAlign = System.Drawing.ContentAlignment.MiddleRight;

// txtName

this.txtName.Location = new System.Drawing.Point(72, 40);

this.txtName.Name = "txtName";

this.txtName.Size = new System.Drawing.Size(144, 20);

this.txtName.TabIndex = 5;

this.txtName.Text = " ";

// btnJoin

this.btnJoin.Location = new System.Drawing.Point(232, 40);

this.btnJoin.Name = "btnJoin";

this.btnJoin.Size = new System.Drawing.Size(72, 24);

this.btnJoin.TabIndex = 6;

this.btnJoin.Text = "Join Chat";

this.btnJoin.Click += new System.EventHandler(this.btnJoin_Click);

// btnQuit

this.btnQuit.Location = new System.Drawing.Point(312, 40);

this.btnQuit.Name = "btnQuit";

this.btnQuit.Size = new System.Drawing.Size(72, 24);

this.btnQuit.TabIndex = 7;

this.btnQuit.Text = "Quit Chat";

this.btnQuit.Click += new System.EventHandler(this.btnQuit_Click);

// groupBox1

this.groupBox1.Controls.Add(this.btnSend);

this.groupBox1.Controls.Add(this.txtOut);

this.groupBox1.Location = new System.Drawing.Point(8, 72);

this.groupBox1.Name = "groupBox1";

this.groupBox1.Size = new System.Drawing.Size(376, 128);

this.groupBox1.TabIndex = 8;

this.groupBox1.TabStop = false;

this.groupBox1.Text = "Out-going Message";

// txtOut

this.txtOut.Location = new System.Drawing.Point(8, 16);

this.txtOut.Multiline = true;

this.txtOut.Name = "txtOut";

this.txtOut.ScrollBars = System.Windows.Forms.ScrollBars.Both;

this.txtOut.Size = new System.Drawing.Size(288, 104);

this.txtOut.TabIndex = 0;

this.txtOut.Text = " ";

// btnSend

this.btnSend.Location = new System.Drawing.Point(304, 96);

this.btnSend.Name = "btnSend";

this.btnSend.Size = new System.Drawing.Size(64, 24);

this.btnSend.TabIndex = 1;

this.btnSend.Text = "Send";

this.btnSend.Click += new System.EventHandler(this.btnSend_Click);

// groupBox2

this.groupBox2.Controls.Add(this.txtIn);

this.groupBox2.Location = new System.Drawing.Point(8, 208);

this.groupBox2.Name = "groupBox2";

this.groupBox2.Size = new System.Drawing.Size(376, 160);

this.groupBox2.TabIndex = 9;

this.groupBox2.TabStop = false;

this.groupBox2.Text = "In-comming Messages";

// txtIn

this.txtIn.Location = new System.Drawing.Point(8, 16);

this.txtIn.Multiline = true;

this.txtIn.Name = "txtIn";

this.txtIn.ScrollBars = System.Windows.Forms.ScrollBars.Both;

this.txtIn.Size = new System.Drawing.Size(360, 136);

this.txtIn.TabIndex = 0;

this.txtIn.Text = " ";

// Form1

this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);

this.ClientSize = new System.Drawing.Size(400, 374);

this.Controls.Add(this.groupBox2);

this.Controls.Add(this.groupBox1);

this.Controls.Add(this.btnQuit);

this.Controls.Add(this.btnJoin);

this.Controls.Add(this.txtName);

this.Controls.Add(this.label3);

this.Controls.Add(this.txtPort);

this.Controls.Add(this.label2);

this.Controls.Add(this.txtIP);

this.Controls.Add(this.label1);

this.Name = "Form1";

this.Text = "Form1";

this.groupBox1.ResumeLayout(false);

this.groupBox2.ResumeLayout(false);

this.ResumeLayout(false);

}

#endregion

/// <summary>

/// The main entry point for the application.

/// </summary>

[STAThread]

static void Main()

{

Application.Run(new Form1());

}

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

{

client = new Socket(AddressFamily.InterNetwork,SocketType.Dgram, ProtocolType.Udp);

remoteEP = new IPEndPoint(IPAddress.Parse(txtIP.Text.Trim()), int.Parse(txtPort.Text.Trim()));

client.SendTo(Encoding.ASCII.GetBytes("join"), remoteEP);

data = new byte[1024];

Thread thread1 = new Thread(new ThreadStart(Rec));

thread1.Start();

}

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

{

client.SendTo(Encoding.ASCII.GetBytes("quit"), remoteEP);

}

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

{

Thread thread = new Thread (new ThreadStart(Send));

thread.Start();

}

public void Send()

{

client.SendTo(Encoding.ASCII.GetBytes(txtName.Text.Trim() + " :" + txtOut.Text.Trim()), remoteEP);

}

public void Rec() {

while(true)

{

recv = client.ReceiveFrom(data, ref remoteEP);

txtIn.Text += Encoding.ASCII.GetString(data, 0, recv) + "\r\n" ;

}

posted on 2005-05-20 19:35 登峰阅读(3408) 评论(2) 收藏举报