简单的多人聊天(C#.Socket)

/********************************8chatserver:*************************************************/

using system;

using system.drawing;

using system.collections;

using https://www.360docs.net/doc/4310819901.html,ponentmodel;

using system.windows.forms;

using system.data;

using system.threading;

using https://www.360docs.net/doc/4310819901.html,.sockets;

using https://www.360docs.net/doc/4310819901.html,;

namespace chat_server

{

///

/// form1 的摘要说明。

///

public class form1 : system.windows.forms.form

{

///

/// 必需的设计器变量。

///

private https://www.360docs.net/doc/4310819901.html,ponentmodel.container components = null;

static int listenport=6666;

socket clientsocket;

private system.windows.forms.listbox lbclients;

arraylist clients;

private system.windows.forms.button button1;

thread clientservice;

private https://www.360docs.net/doc/4310819901.html,bel label1;

thread threadlisten;

public form1()

{

initializecomponent();

}

///

/// 清理所有正在使用的资源。

///

protected override void dispose( bool disposing ) {

if( disposing )

{

if(clientservice != null)

{

clientservice.abort();

}

if(threadlisten != null)

{

try

{

threadlisten.abort();

}

catch(exception ex)

{

threadlisten = null;

}

}

if (components != null)

{

components.dispose();

}

}

base.dispose( disposing );

}

#region windows 窗体设计器生成的代码

///

/// 设计器支持所需的方法- 不要使用代码编辑器修改

/// 此方法的内容。

///

private void initializecomponent()

{

this.lbclients = new system.windows.forms.listbox();

this.button1 = new system.windows.forms.button();

https://www.360docs.net/doc/4310819901.html,bel1 = new https://www.360docs.net/doc/4310819901.html,bel();

this.suspendlayout();

//

// lbclients

//

this.lbclients.itemheight = 12;

this.lbclients.location = new system.drawing.point(16, 24);

https://www.360docs.net/doc/4310819901.html, = "lbclients";

this.lbclients.size = new system.drawing.size(184, 268);

this.lbclients.tabindex = 0;

//

// button1

//

this.button1.location = new system.drawing.point(272, 56);

https://www.360docs.net/doc/4310819901.html, = "button1";

this.button1.tabindex = 1;

this.button1.text = "button1";

this.button1.click += new system.eventhandler(this.button1_click); //

// label1

//

https://www.360docs.net/doc/4310819901.html,bel1.location = new system.drawing.point(240, 136);

https://www.360docs.net/doc/4310819901.html, = "label1";

https://www.360docs.net/doc/4310819901.html,bel1.size = new system.drawing.size(120, 32);

https://www.360docs.net/doc/4310819901.html,bel1.tabindex = 2;

https://www.360docs.net/doc/4310819901.html,bel1.text = "label1";

//

// form1

//

this.autoscalebasesize = new system.drawing.size(6, 14); this.clientsize = new system.drawing.size(368, 309);

this.controls.add(https://www.360docs.net/doc/4310819901.html,bel1);

this.controls.add(this.button1);

this.controls.add(this.lbclients);

https://www.360docs.net/doc/4310819901.html, = "form1";

this.text = "form1";

this.load += new system.eventhandler(this.form1_load);

this.resumelayout(false);

}

#endregion

///

/// 应用程序的主入口点。

///

[stathread]

static void main()

{

application.run(new form1());

}

private void startlistening()

{

tcplistener listener = new tcplistener(listenport);

listener.start();

label1.text = "listening....";

while (true)

{

try

{

socket s = listener.acceptsocket();

clientsocket = s;

clientservice = new thread(new threadstart(serviceclient)); clientservice.start();

}

catch(exception ex)

{

messagebox.show("listening error: "+ex.message);

}

}

}

private void serviceclient()

{

socket client = clientsocket;

bool keepalive = true;

while (keepalive)

{

byte[] buffer = new byte[1024];

int buflen = 0;

try

{

buflen = client.available ;

client.receive(buffer,0,buflen,socketflags.none);

if(buflen==0)

continue;

}

catch(exception ex)

{

messagebox.show("receive error:"+ex.message);

return;

}

string clientcommand = system.text.encoding.ascii.getstring(buffer).substring(0,buflen);

string[] tokens = clientcommand.split(new char[]{|});

console.writeline(clientcommand);

if (tokens[0] == "conn")

{

for(int n=0; n

{

client cl = (client)clients[n];

sendtoclient(cl, "join|" + tokens[1]);

}

endpoint ep = client.remoteendpoint;

client c = new client(tokens[1], ep, clientservice, client);

string message = "list|" + getchatterlist() +"￥r￥n";

sendtoclient(c, message);

clients.add(c);

lbclients.items.add(c);

}

if (tokens[0] == "chat")

{

for(int n=0; n

{

client cl = (client)clients[n];

sendtoclient(cl, clientcommand);

}

}

if (tokens[0] == "priv")

{

string destclient = tokens[3];

for(int n=0; n

{

client cl = (client)clients[n];

if(https://www.360docs.net/doc/4310819901.html,pareto(tokens[3]) == 0)

sendtoclient(cl, clientcommand);

if(https://www.360docs.net/doc/4310819901.html,pareto(tokens[1]) == 0)

sendtoclient(cl, clientcommand);

}

}

if (tokens[0] == "gone")

{

int remove = 0;

bool found = false;

int c = clients.count;

for(int n=0; n

{

client cl = (client)clients[n];

sendtoclient(cl, clientcommand);

if(https://www.360docs.net/doc/4310819901.html,pareto(tokens[1]) == 0) {

remove = n;

found = true;

lbclients.items.remove(cl);

}

}

if(found)

clients.removeat(remove);

client.close();

keepalive = false;

}

}

}

private string getchatterlist()

{

string result = "";

for(int i=0;i

{

result += ((client)clients[i]).name+"|"; }

return result;

}

private void sendtoclient(client cl,string clientcommand)

{

byte[] message = system.text.encoding.ascii.getbytes(clientcommand); socket s = cl.sock;

if(s.connected)

{

s.send(message,message.length,0);

}

}

private void form1_load(object sender, system.eventargs e)

{

clients = new arraylist();

}

private void button1_click(object sender, system.eventargs e)

{

threadlisten = new thread(new threadstart(startlistening));

threadlisten.start();

}

}

}

/***************************** client类********************/

/************************** 放于chatserver 项目中*********/

using system;

using system.threading;

namespace chat_server

{

using https://www.360docs.net/doc/4310819901.html,.sockets;

using https://www.360docs.net/doc/4310819901.html,;

///

/// client 的摘要说明。

///

public class client

{

private thread clthread;

private endpoint endpoint;

private string name;

private socket sock;

public client(string _name, endpoint _endpoint, thread _thread, socket _sock) {

// todo: 在此处添加构造函数逻辑

clthread = _thread;

endpoint = _endpoint;

name = _name;

sock = _sock;

}

public override string tostring()

{

return endpoint.tostring()+ " : " + name;

}

public thread clthread

{

get{return clthread;}

set{clthread = value;}

}

public endpoint host

{

get{return endpoint;}

set{endpoint = value;}

}

public string name

{

get{return name;}

set{name = value;}

}

public socket sock

{

get{return sock;}

set{sock = value;}

}

}

}

/***************************** chatclient ************************************/

using system;

using system.drawing;

using system.collections;

using https://www.360docs.net/doc/4310819901.html,ponentmodel;

using system.windows.forms;

using system.data;

using system.io;

using https://www.360docs.net/doc/4310819901.html,;

using https://www.360docs.net/doc/4310819901.html,.sockets;

using system.threading;

namespace chat_client

{

///

/// form1 的摘要说明。

///

public class form1 : system.windows.forms.form

{

private system.windows.forms.checkbox checkbox1;

private system.windows.forms.statusbar statusbar1;

networkstream ns;

streamreader sr;

tcpclient clientsocket;

bool connected;

thread receive;

string serveraddress = "219.228.231.85";

int serverport = 6666;

private system.windows.forms.richtextbox rtbchatin;

private system.windows.forms.listbox lbchatters;

private system.windows.forms.textbox chatout;

private system.windows.forms.button btndisconnect;

private system.windows.forms.button btnsend;

private system.windows.forms.textbox clientname;

string clientname;

private system.windows.forms.button btnconnect;

private https://www.360docs.net/doc/4310819901.html,ponentmodel.container components = null;

public form1()

{

initializecomponent();

}

///

/// 清理所有正在使用的资源。

///

protected override void dispose( bool disposing )

{

if( disposing )

{

if(receive != null)

{

quitchat();

}

if (components != null)

{

components.dispose();

}

}

base.dispose( disposing );

}

#region windows 窗体设计器生成的代码

///

/// 设计器支持所需的方法- 不要使用代码编辑器修改

/// 此方法的内容。

///

private void initializecomponent()

{

this.lbchatters = new system.windows.forms.listbox();

this.rtbchatin = new system.windows.forms.richtextbox();

this.checkbox1 = new system.windows.forms.checkbox(); this.chatout = new system.windows.forms.textbox();

this.btnsend = new system.windows.forms.button();

this.statusbar1 = new system.windows.forms.statusbar(); this.btndisconnect = new system.windows.forms.button(); this.clientname = new system.windows.forms.textbox();

this.btnconnect = new system.windows.forms.button();

this.suspendlayout();

//

// lbchatters

//

this.lbchatters.itemheight = 12;

this.lbchatters.location = new system.drawing.point(32, 40); https://www.360docs.net/doc/4310819901.html, = "lbchatters";

this.lbchatters.size = new system.drawing.size(112, 172); this.lbchatters.tabindex = 0;

//

// rtbchatin

//

this.rtbchatin.location = new system.drawing.point(160, 40);

https://www.360docs.net/doc/4310819901.html, = "rtbchatin";

this.rtbchatin.size = new system.drawing.size(208, 176);

this.rtbchatin.tabindex = 2;

this.rtbchatin.text = "";

//

// checkbox1

//

this.checkbox1.location = new system.drawing.point(16, 248);

https://www.360docs.net/doc/4310819901.html, = "checkbox1";

this.checkbox1.tabindex = 3;

this.checkbox1.text = "checkbox1";

//

// chatout

//

this.chatout.location = new system.drawing.point(136, 248);

https://www.360docs.net/doc/4310819901.html, = "chatout";

this.chatout.size = new system.drawing.size(136, 21);

this.chatout.tabindex = 4;

this.chatout.text = "message";

//

// btnsend

//

this.btnsend.location = new system.drawing.point(336, 248);

https://www.360docs.net/doc/4310819901.html, = "btnsend";

this.btnsend.tabindex = 5;

this.btnsend.text = "send";

this.btnsend.click += new system.eventhandler(this.btnsend_click); //

// statusbar1

//

this.statusbar1.location = new system.drawing.point(0, 287);

https://www.360docs.net/doc/4310819901.html, = "statusbar1";

this.statusbar1.size = new system.drawing.size(464, 22);

this.statusbar1.tabindex = 6;

this.statusbar1.text = "statusbar1";

//

// btndisconnect

//

this.btndisconnect.enabled = false;

this.btndisconnect.location = new system.drawing.point(392, 112);

https://www.360docs.net/doc/4310819901.html, = "btndisconnect";

this.btndisconnect.size = new system.drawing.size(64, 32);

this.btndisconnect.tabindex = 7;

this.btndisconnect.text = "断开";

this.btndisconnect.click += new system.eventhandler(this.btndisconnect_click); //

// clientname

//

this.clientname.location = new system.drawing.point(96, 8);

https://www.360docs.net/doc/4310819901.html, = "clientname";

this.clientname.tabindex = 8;

this.clientname.text = "name";

//

// btnconnect

//

this.btnconnect.location = new system.drawing.point(392, 56);

https://www.360docs.net/doc/4310819901.html, = "btnconnect";

this.btnconnect.size = new system.drawing.size(64, 32);

this.btnconnect.tabindex = 9;

this.btnconnect.text = "连接";

this.btnconnect.click += new system.eventhandler(this.btnconnect_click);

//

// form1

//

this.autoscalebasesize = new system.drawing.size(6, 14);

this.clientsize = new system.drawing.size(464, 309);

this.controls.add(this.btnconnect);

this.controls.add(this.clientname);

this.controls.add(this.btndisconnect);

this.controls.add(this.statusbar1);

this.controls.add(this.btnsend);

this.controls.add(this.chatout);

this.controls.add(this.checkbox1);

this.controls.add(this.rtbchatin);

this.controls.add(this.lbchatters);

https://www.360docs.net/doc/4310819901.html, = "form1";

this.text = "form1";

this.resumelayout(false);

}

#endregion

///

/// 应用程序的主入口点。

///

[stathread]

static void main()

{

application.run(new form1());

}

private void establishconnection()

{

statusbar1.text = "正在连接到服务器";

try

{

clientsocket = new tcpclient(serveraddress,serverport); ns = clientsocket.getstream();

sr = new streamreader(ns);

connected = true;

}

catch (exception)

{

messagebox.show("不能连接到服务器！","错误",

messageboxbuttons.ok, messageboxicon.exclamation); statusbar1.text = "已断开连接";

}

}

private void registerwithserver()

{

lbchatters.items.clear();

clientname = clientname.text;

try

{

string command = "conn|" + clientname; //+"￥r￥n";

byte[] outbytes = system.text.encoding.ascii.getbytes(command.tochararray()); ns.write(outbytes,0,outbytes.length);

string serverresponse = sr.readline();

serverresponse.trim();

string[] tokens = serverresponse.split(|);

if(tokens[0] == "list")

{

statusbar1.text = "已连接";

btndisconnect.enabled = true;

}

if(tokens[1] != "")

{

for(int n=1; n

lbchatters.items.add(tokens[n].trim(new char[]{￥r,￥n}));

}

this.text = clientname + "：已连接到服务器";

}

catch (exception ex)

{

messagebox.show("注册时发生错误！"+ex.message,"错误",

messageboxbuttons.ok, messageboxicon.exclamation);

connected = false;

}

}

private void receivechat()

{

bool keepalive = true;

while (keepalive)

{

try

{

byte[] buffer = new byte[1024]; // 2048???

ns.read(buffer,0,buffer.length);

string chatter = system.text.encoding.ascii.getstring(buffer); string[] tokens = chatter.split(new char[]{|});

if (tokens[0] == "chat")

{

rtbchatin.appendtext(tokens[1]);

// if(logging)

// logwriter.writeline(tokens[1]);

}

if (tokens[0] == "priv")

{

rtbchatin.appendtext("private from ");

rtbchatin.appendtext(tokens[1].trim() );

rtbchatin.appendtext(tokens[2] + "￥r￥n");

// if(logging)

// {

// logwriter.write("private from ");

// logwriter.write(tokens[1].trim() );

// logwriter.writeline(tokens[2] + "￥r￥n");

// }

}

if (tokens[0] == "join")

{

rtbchatin.appendtext(tokens[1].trim() );

rtbchatin.appendtext(" has joined the chat￥r￥n");

// if(logging)

// {

// logwriter.writeline(tokens[1]+" has joined the chat");

// }

string newguy = tokens[1].trim(new char[]{￥r,￥n});

lbchatters.items.add(newguy);

}

if (tokens[0] == "gone")

{

rtbchatin.appendtext(tokens[1].trim() );

rtbchatin.appendtext(" has left the chat￥r￥n");

// if(logging)

// {

// logwriter.writeline(tokens[1]+" has left the chat");

// }

lbchatters.items.remove(tokens[1].trim(new char[]{￥r,￥n})); }

if (tokens[0] == "quit")

{

ns.close();

clientsocket.close();

keepalive = false;

statusbar1.text = "服务器端已停止";

connected= false;

btnsend.enabled = false;

btndisconnect.enabled = false;

}

}

catch(exception){}

}

}

private void quitchat()

{

if(connected)

{

try

{

string command = "gone|" + clientname;

byte[] outbytes = system.text.encoding.ascii.getbytes(command.tochararray()); ns.write(outbytes,0,outbytes.length);

clientsocket.close();

}

catch(exception ex)

{

messagebox.show(ex.message);

}

}

// if(logging)

// logwriter.close();

if(receive != null && receive.isalive)

receive.abort();

this.text = "客户端";

connected = false;

}

private void btnsend_click(object sender, system.eventargs e)

{

if(connected)

{

try

{

string command = "chat|" + clientname+": "+chatout.text+"￥r￥n";

byte[] outbytes = system.text.encoding.ascii.getbytes(command.tochararray()); ns.write(outbytes,0,outbytes.length);

//clientsocket.close();

}

catch(exception ex)

{

messagebox.show(ex.message);

}

}

}

private void btnconnect_click(object sender, system.eventargs e)

{

establishconnection();

registerwithserver();

if(connected)

{

receive = new thread(new threadstart(receivechat));

receive.start();

}

}

private void btndisconnect_click(object sender, system.eventargs e) {

quitchat();

}

}

}