javaqq聊天室源代码（聊天室java 代码）

今天给各位分享javaqq聊天室源代码的知识，其中也会对聊天室java 代码进行解释，如果能碰巧解决你现在面临的问题，别忘了关注本站，现在开始吧！

本文目录一览：

• 1、急求一个关于UDP的JAVA实现多人聊天源代码
• 2、求聊天软件源代码，java语言的
• 3、求java网络聊天室（B/S模式)程序代码
• 4、急求一个简易聊天室的代码
• 5、关于仿QQ聊天对话框的JAVA代码

急求一个关于UDP的JAVA实现多人聊天源代码

import java.io.InputStream;

import java.io.DataInputStream;

import java.io.InputStreamReader;

import java.io.OutputStream;

import java.io.DataOutputStream;

import java.io.BufferedReader;

import java.net.ServerSocket;

import java.net.Socket;

import java.io.IOException;

import java.util.Date;

class Server

{

public Server()

{

try

{

ServerSocket s=new ServerSocket(8888);

Socket ss=s.accept();

OutputStream out=ss.getOutputStream();

DataOutputStream dout=new DataOutputStream(out);

InputStream in=ss.getInputStream();

DataInputStream din=new DataInputStream(in);

System.out.print(din.readUTF()+"!");

dout.writeUTF("你已经连接到服务器"+"\t"+"你的地址："+ss.getInetAddress()+"\t"

+"你的链接端口："+ss.getLocalPort()+"\n");

new ReadMessage(din).start();

new SendMessage(dout).start();

}

catch (IOException e)

{

e.printStackTrace();

}

}

public static void main(String[] args)

{

new Server();

}

}

//接受客户端信息

class ReadMessage extends Thread

{

private DataInputStream din;

public ReadMessage(DataInputStream din)

{

this.din=din;

}

public void run()

{

String str;

try

{

while (true)

{

str=din.readUTF();

System.out.println(new Date().toLocaleString()+"客户端说："+str);

if (str.equals("bye"))

{

System.out.println("客户端下线！");

break;

}

}

}

catch (IOException e)

{

e.printStackTrace();

}

}

}

// 发出服务器信息

class SendMessage extends Thread

{

private DataOutputStream dout;

public SendMessage(DataOutputStream dout)

{

this.dout=dout;

}

public void run()

{

InputStreamReader inr=new InputStreamReader(System.in);

BufferedReader buf=new BufferedReader(inr);

String str;

try

{

while(true)

{

str=buf.readLine();

dout.writeUTF(str);

if (str.equals("bye"))

{

System.out.println("服务器退出！");

System.exit(1);

}

}

}

catch (IOException e)

{

e.printStackTrace();

}

}

}

import java.io.InputStream;

import java.io.DataInputStream;

import java.io.InputStreamReader;

import java.io.OutputStream;

import java.io.DataOutputStream;

import java.io.BufferedReader;

import java.net.Socket;

import java.io.IOException;

import java.util.Date;

class Client

{

public Client()

{

try

{

Socket s=new Socket("192.168.1.2",8888);

InputStream in=s.getInputStream();

DataInputStream din=new DataInputStream(in);

OutputStream out=s.getOutputStream();

DataOutputStream dout=new DataOutputStream(out);

dout.writeUTF("服务器你好！我是客户端");

System.out.println(din.readUTF());

new Thread(new SenderMessage(dout)).start();

new Thread(new ReaderMessage(din)).start();

}

catch (IOException e)

{

e.printStackTrace();

}

}

public static void main(String[] args)

{

new Client();

}

}

class ReaderMessage implements Runnable

{

private DataInputStream din;

public ReaderMessage(DataInputStream din)

{

this.din=din;

}

public void run()

{

String str;

try

{

while(true)

{

str=din.readUTF();

System.out.println(new Date().toLocaleString()+"服务器说："+str);

if (str.equals("bye"))

{

System.out.println("服务器已经关闭，此程序自动退出！");

break;

}

}

}

catch (IOException e)

{

e.printStackTrace();

}

}

}

class SenderMessage implements Runnable

{

private DataOutputStream dout;

public SenderMessage(DataOutputStream dout)

{

this.dout=dout;

}

public void run()

{

String str;

InputStreamReader inf=new InputStreamReader(System.in);

BufferedReader buf=new BufferedReader(inf);

try

{

while (true)

{

str=buf.readLine();

dout.writeUTF(str);

if (str.equals("bye"))

{

System.out.println("客户端自己退出！");

System.exit(1);

}

}

}

catch (IOException e)

{

e.printStackTrace();

}

}

}

求聊天软件源代码，java语言的

这东西需要服务器啊（你要去申请？），我上次做了一半才发现就放弃了

求java网络聊天室（B/S模式)程序代码

共四个java文件，源代码如下：

import java.awt.*;

import java.net.*;

import java.awt.event.*;

import java.io.*;

import java.util.Hashtable;

public class ChatArea extends Panel implements ActionListener,Runnable

{

Socket socket=null;

DataInputStream in=null;

DataOutputStream out=null;

Thread threadMessage=null;

TextArea 谈话显示区,私聊显示区=null;

TextField 送出信息=null;

Button 确定,刷新谈话区,刷新私聊区;

Label 提示条=null;

String name=null;

Hashtable listTable;

List listComponent=null;

Choice privateChatList;

int width,height;

public ChatArea(String name,Hashtable listTable,int width,int height)

{

setLayout(null);

setBackground(Color.orange);

this.width=width;

this.height=height;

setSize(width,height);

this.listTable=listTable;

this.name=name;

threadMessage=new Thread(this);

谈话显示区=new TextArea(10,10);

私聊显示区=new TextArea(10,10);

确定=new Button("送出信息到:");

刷新谈话区=new Button("刷新谈话区");

刷新私聊区=new Button("刷新私聊区");

提示条=new Label("双击聊天者可私聊",Label.CENTER);

送出信息=new TextField(28);

确定.addActionListener(this);

送出信息.addActionListener(this);

刷新谈话区.addActionListener(this);

刷新私聊区.addActionListener(this);

listComponent=new List();

listComponent.addActionListener(this);

privateChatList=new Choice();

privateChatList.add("大家(*)");

privateChatList.select(0);

add(谈话显示区);

谈话显示区.setBounds(10,10,(width-120)/2,(height-120));

add(私聊显示区);

私聊显示区.setBounds(10+(width-120)/2,10,(width-120)/2,(height-120));

add(listComponent);

listComponent.setBounds(10+(width-120),10,100,(height-160));

add(提示条);

提示条.setBounds(10+(width-120),10+(height-160),110,40);

Panel pSouth=new Panel();

pSouth.add(送出信息);

pSouth.add(确定);

pSouth.add(privateChatList);

pSouth.add(刷新谈话区);

pSouth.add(刷新私聊区);

add(pSouth);

pSouth.setBounds(10,20+(height-120),width-20,60);

}

public void setName(String s)

{

name=s;

}

public void setSocketConnection(Socket socket,DataInputStream in,DataOutputStream out)

{

this.socket=socket;

this.in=in;

this.out=out;

try

{

threadMessage.start();

}

catch(Exception e)

{

}

}

public void actionPerformed(ActionEvent e)

{

if(e.getSource()==确定||e.getSource()==送出信息)

{

String message="";

String people=privateChatList.getSelectedItem();

people=people.substring(0,people.indexOf("("));

message=送出信息.getText();

if(message.length()0)

{

try {

if(people.equals("大家"))

{

out.writeUTF("公共聊天内容:"+name+"说:"+message);

}

else

{

out.writeUTF("私人聊天内容:"+name+"悄悄地说:"+message+"#"+people);

}

}

catch(IOException event)

{

}

}

}

else if(e.getSource()==listComponent)

{

privateChatList.insert(listComponent.getSelectedItem(),0);

privateChatList.repaint();

}

else if(e.getSource()==刷新谈话区)

{

谈话显示区.setText(null);

}

else if(e.getSource()==刷新私聊区)

{

私聊显示区.setText(null);

}

}

public void run()

{

while(true)

{

String s=null;

try

{

s=in.readUTF();

if(s.startsWith("聊天内容:"))

{

String content=s.substring(s.indexOf(":")+1);

谈话显示区.append("\n"+content);

}

if(s.startsWith("私人聊天内容:"))

{

String content=s.substring(s.indexOf(":")+1);

私聊显示区.append("\n"+content);

}

else if(s.startsWith("聊天者:"))

{

String people=s.substring(s.indexOf(":")+1,s.indexOf("性别"));

String sex=s.substring(s.indexOf("性别")+2);

listTable.put(people,people+"("+sex+")");

listComponent.add((String)listTable.get(people));

listComponent.repaint();

}

else if(s.startsWith("用户离线:"))

{

String awayPeopleName=s.substring(s.indexOf(":")+1);

listComponent.remove((String)listTable.get(awayPeopleName));

listComponent.repaint();

谈话显示区.append("\n"+(String)listTable.get(awayPeopleName)+"离线");

listTable.remove(awayPeopleName);

}

Thread.sleep(5);

}

catch(IOException e)

{

listComponent.removeAll();

listComponent.repaint();

listTable.clear();

谈话显示区.setText("和服务器的连接已中断\n必须刷新浏览器才能再次聊天");

break;

}

catch(InterruptedException e)

{

}

}

}

}

ChatServer.java

import java.io.*;

import java.net.*;

import java.util.*;

public class ChatServer

{

public static void main(String args[])

{

ServerSocket server=null;

Socket you=null;

Hashtable peopleList;

peopleList=new Hashtable();

while(true)

{

try

{

server=new ServerSocket(6666);

}

catch(IOException e1)

{

System.out.println("正在监听");

}

try {

you=server.accept();

InetAddress address=you.getInetAddress();

System.out.println("用户的IP:"+address);

}

catch (IOException e)

{

}

if(you!=null)

{

Server_thread peopleThread=new Server_thread(you,peopleList);

peopleThread.start();

}

else {

continue;

}

}

}

}

class Server_thread extends Thread

{

String name=null,sex=null;

Socket socket=null;

File file=null;

DataOutputStream out=null;

DataInputStream in=null;

Hashtable peopleList=null;

Server_thread(Socket t,Hashtable list)

{

peopleList=list;

socket=t;

try {

in=new DataInputStream(socket.getInputStream());

out=new DataOutputStream(socket.getOutputStream());

}

catch (IOException e)

{

}

}

public void run()

{

while(true)

{ String s=null;

try

{

s=in.readUTF();

if(s.startsWith("姓名:"))

{

name=s.substring(s.indexOf(":")+1,s.indexOf("性别"));

sex=s.substring(s.lastIndexOf(":")+1);

boolean boo=peopleList.containsKey(name);

if(boo==false)

{

peopleList.put(name,this);

out.writeUTF("可以聊天:");

Enumeration enum=peopleList.elements();

while(enum.hasMoreElements())

{

Server_thread th=(Server_thread)enum.nextElement();

th.out.writeUTF("聊天者:"+name+"性别"+sex);

if(th!=this)

{

out.writeUTF("聊天者:"+th.name+"性别"+th.sex);

}

}

}

else

{

out.writeUTF("不可以聊天:");

}

}

else if(s.startsWith("公共聊天内容:"))

{

String message=s.substring(s.indexOf(":")+1);

Enumeration enum=peopleList.elements();

while(enum.hasMoreElements())

{

((Server_thread)enum.nextElement()).out.writeUTF("聊天内容:"+message);

}

}

else if(s.startsWith("用户离开:"))

{

Enumeration enum=peopleList.elements();

while(enum.hasMoreElements())

{ try

{

Server_thread th=(Server_thread)enum.nextElement();

if(th!=thisth.isAlive())

{

th.out.writeUTF("用户离线:"+name);

}

}

catch(IOException eee)

{

}

}

peopleList.remove(name);

socket.close();

System.out.println(name+"用户离开了");

break;

}

else if(s.startsWith("私人聊天内容:"))

{

String 悄悄话=s.substring(s.indexOf(":")+1,s.indexOf("#"));

String toPeople=s.substring(s.indexOf("#")+1);

Server_thread toThread=(Server_thread)peopleList.get(toPeople);

if(toThread!=null)

{

toThread.out.writeUTF("私人聊天内容:"+悄悄话);

}

else

{

out.writeUTF("私人聊天内容:"+toPeople+"已经离线");

}

}

}

catch(IOException ee)

{

Enumeration enum=peopleList.elements();

while(enum.hasMoreElements())

{ try

{

Server_thread th=(Server_thread)enum.nextElement();

if(th!=thisth.isAlive())

{

th.out.writeUTF("用户离线:"+name);

}

}

catch(IOException eee)

{

}

}

peopleList.remove(name);

try

{

socket.close();

}

catch(IOException eee)

{

}

System.out.println(name+"用户离开了");

break;

}

}

}

}

import java.awt.*;

import java.io.*;

import java.net.*;

import java.applet.*;

import java.util.Hashtable;

ClientChat.java

public class ClientChat extends Applet implements Runnable

{

Socket socket=null;

DataInputStream in=null;

DataOutputStream out=null;

InputNameTextField 用户提交昵称界面=null;

ChatArea 用户聊天界面=null;

Hashtable listTable;

Label 提示条;

Panel north, center;

Thread thread;

public void init()

{

int width=getSize().width;

int height=getSize().height;

listTable=new Hashtable();

setLayout(new BorderLayout());

用户提交昵称界面=new InputNameTextField(listTable);

int h=用户提交昵称界面.getSize().height;

用户聊天界面=new ChatArea("",listTable,width,height-(h+5));

用户聊天界面.setVisible(false);

提示条=new Label("正在连接到服务器,请稍等...",Label.CENTER);

提示条.setForeground(Color.red);

north=new Panel(new FlowLayout(FlowLayout.LEFT));

center=new Panel();

north.add(用户提交昵称界面);

north.add(提示条);

center.add(用户聊天界面);

add(north,BorderLayout.NORTH);

add(center,BorderLayout.CENTER);

validate();

}

public void start()

{

if(socket!=nullin!=nullout!=null)

{ try

{

socket.close();

in.close();

out.close();

用户聊天界面.setVisible(false);

}

catch(Exception ee)

{

}

}

try

{

socket = new Socket(this.getCodeBase().getHost(), 6666);

in=new DataInputStream(socket.getInputStream());

out=new DataOutputStream(socket.getOutputStream());

}

catch (IOException ee)

{

提示条.setText("连接失败");

}

if(socket!=null)

{

InetAddress address=socket.getInetAddress();

提示条.setText("连接:"+address+"成功");

用户提交昵称界面.setSocketConnection(socket,in,out);

north.validate();

}

if(thread==null)

{

thread=new Thread(this);

thread.start();

}

}

public void stop()

{

try

{

socket.close();

thread=null;

}

catch(IOException e)

{

this.showStatus(e.toString());

}

}

public void run()

{

while(thread!=null)

{

if(用户提交昵称界面.get能否聊天()==true)

{

用户聊天界面.setVisible(true);

用户聊天界面.setName(用户提交昵称界面.getName());

用户聊天界面.setSocketConnection(socket,in,out);

提示条.setText("祝聊天愉快!");

center.validate();

break;

}

try

{

Thread.sleep(100);

}

catch(Exception e)

{

}

}

}

}

InputNameTextField。java

import java.awt.*;

import java.net.*;

import java.awt.event.*;

import java.io.*;

import java.util.Hashtable;

public class InputNameTextField extends Panel implements ActionListener,Runnable

{

TextField nameFile=null;

String name=null;

Checkbox male=null,female=null;

CheckboxGroup group=null;

Button 进入聊天室=null,退出聊天室=null;

Socket socket=null;

DataInputStream in=null;

DataOutputStream out=null;

Thread thread=null;

boolean 能否聊天=false;

Hashtable listTable;

public InputNameTextField(Hashtable listTable)

{

this.listTable=listTable;

nameFile=new TextField(10);

group=new CheckboxGroup();

male=new Checkbox("男",true,group);

female=new Checkbox("女",false,group);

进入聊天室=new Button("进入");

退出聊天室=new Button("退出");

进入聊天室.addActionListener(this);

退出聊天室.addActionListener(this);

thread=new Thread(this);

add(new Label("昵称:"));

add(nameFile);

add(male);

add(female);

add(进入聊天室);

add(退出聊天室);

退出聊天室.setEnabled(false);

}

public void set能否聊天(boolean b)

{

能否聊天=b;

}

public boolean get能否聊天()

{

return 能否聊天;

}

public String getName()

{

return name;

}

public void setName(String s)

{

name=s;

}

public void setSocketConnection(Socket socket,DataInputStream in,DataOutputStream out)

{

this.socket=socket;

this.in=in;

this.out=out;

try{

thread.start();

}

catch(Exception e)

{

nameFile.setText(""+e);

}

}

public Socket getSocket()

{

return socket;

}

public void actionPerformed(ActionEvent e)

{

if(e.getSource()==进入聊天室)

{

退出聊天室.setEnabled(true);

if(能否聊天==true)

{

nameFile.setText("您正在聊天:"+name);

}

else

{

this.setName(nameFile.getText());

String sex=group.getSelectedCheckbox().getLabel();

if(socket!=nullname!=null)

{

try{

out.writeUTF("姓名:"+name+"性别:"+sex);

}

catch(IOException ee)

{

nameFile.setText("没有连通服务器"+ee);

}

}

}

}

if(e.getSource()==退出聊天室)

{

try

{

out.writeUTF("用户离开:");

}

catch(IOException ee)

{

}

}

}

public void run()

{

String message=null;

while(true)

{

if(in!=null)

{

try

{

message=in.readUTF();

}

catch(IOException e)

{

nameFile.setText("和服务器断开"+e);

}

}

if(message.startsWith("可以聊天:"))

{

能否聊天=true;

break;

}

else if(message.startsWith("聊天者:"))

{

String people=message.substring(message.indexOf(":")+1);

listTable.put(people,people);

}

else if(message.startsWith("不可以聊天:"))

{

能否聊天=false;

nameFile.setText("该昵称已被占用");

}

}

}

}

急求一个简易聊天室的代码

这个应该可以的拉：

import java.applet.*;

import java.awt.*;

import java.io.*;

import java.net.*;

import java.awt.event.*;

public class ChatClient extends Applet{

protected boolean loggedIn;//登入状态

protected Frame cp;//聊天室框架

protected static int PORTNUM=7777; //缺省端口号7777

protected int port;//实际端口号

protected Socket sock;

protected BufferedReader is;//用于从sock读取数据的BufferedReader

protected PrintWriter pw;//用于向sock写入数据的PrintWriter

protected TextField tf;//用于输入的TextField

protected TextArea ta;//用于显示对话的TextArea

protected Button lib;//登入按钮

protected Button lob;//登出的按钮

final static String TITLE ="Chatroom applet";

protected String paintMessage;//发表的消息

public ChatParameter Chat;

public void init(){

paintMessage="正在生成聊天窗口";

repaint();

cp=new Frame(TITLE);

cp.setLayout(new BorderLayout());

String portNum=getParameter("port");//呢个参数勿太明

port=PORTNUM;

if (portNum!=null) //书上是portNum==null,十分有问题

port=Integer.parseInt(portNum);

//CGI

ta=new TextArea(14,80);

ta.setEditable(false);//read only attribute

ta.setFont(new Font("Monospaced",Font.PLAIN,11));

cp.add(BorderLayout.NORTH,ta);

Panel p=new Panel();

Button b;

//for login button

p.add(lib=new Button("Login"));

lib.setEnabled(true);

lib.requestFocus();

lib.addActionListener(new ActionListener() {

public void actionPerformed(ActionEvent e){

login();

lib.setEnabled(false);

lob.setEnabled(true);

tf.requestFocus();//将键盘输入锁定再右边的文本框中

}

});

//for logout button

p.add(lob=new Button ("Logout"));

lob.setEnabled(false);

lob.addActionListener(new ActionListener(){

public void actionPerformed(ActionEvent e){

logout();

lib.setEnabled(true);

lob.setEnabled(false);

lib.requestFocus();

}

});

p.add(new Label ("输入消息:"));

tf=new TextField(40);

tf.addActionListener(new ActionListener(){

public void actionPerformed(ActionEvent e){

if(loggedIn){

//pw.println(Chat.CMD_BCAST+tf.getText());//Chat.CMD....是咩野来?

int j=tf.getText().indexOf(":");

if(j0) pw.println(Chat.CMD_MESG+tf.getText());

else

pw.println(Chat.CMD_BCAST+tf.getText());

tf.setText("");//勿使用flush()?

}

}

});

p.add(tf);

cp.add(BorderLayout.SOUTH,p);

cp.addWindowListener(new WindowAdapter(){

public void windowClosing(WindowEvent e){

//如果执行了setVisible或者dispose,关闭窗口

ChatClient.this.cp.setVisible(false);

ChatClient.this.cp.dispose();

logout();

}

});

cp.pack();//勿明白有咩用?

//将Frame cp放在中间

Dimension us=cp.getSize(),

them=Toolkit.getDefaultToolkit().getScreenSize();

int newX=(them.width-us.width)/2;

int newY=(them.height-us.height)/2;

cp.setLocation(newX,newY);

cp.setVisible(true);

paintMessage="Window should now be visible";

repaint();

}

//登录聊天室

public void login(){

if(loggedIn) return;

try{

sock=new Socket(getCodeBase().getHost(),port);

is=new BufferedReader(new InputStreamReader(sock.getInputStream()));

pw=new PrintWriter(sock.getOutputStream(),true);

}catch(IOException e){

showStatus("Can't get socket: "+e);

cp.add(new Label("Can't get socket: "+e));

return;}

//构造并且启动读入器,从服务器读取数据,输出到文本框中

//这里,长成一个线程来避免锁住资源(lockups)

new Thread (new Runnable(){

public void run(){

String line;

try{

while(loggedIn ((line=is.readLine())!=null))

ta.appendText(line+"\n");

}catch(IOException e){

showStatus("我的天啊,掉线了也!!!!");

return;

}

}

}).start();

//假定登录(其实只是打印相关信息,并没有真正登录)

// pw.println(Chat.CMD_LOGIN+"AppletUser");

pw.println(Chat.CMD_LOGIN+"AppletUser");

loggedIn =true;

}

//模仿退出的代码

public void logout(){

if(!loggedIn)

return;

loggedIn=false;

try{

if(sock!=null)

sock.close();

}catch(IOException ign){

// 异常处理哦

}

}

//没有设置stop的方法,即使从浏览器跳到另外一个网页的时候

//聊天程序还可以继续运行

public void paint(Graphics g){

Dimension d=getSize();

int h=d.height;

int w=d.width;

g.fillRect(0,0,w,2);

g.setColor(Color.black);

g.drawString(paintMessage,10,(h/2)-5);

}

}

聊天室服务器端

import java.net.*;

import java.io.*;

import java.util.*;

public class ChatServer{

//聊天室管理员ID

protected final static String CHATMASTER_ID="ChatMaster";

//系统信息的分隔符

protected final static String SEP=": ";

//服务器的Socket

protected ServerSocket servSock;

//当前客户端列表

protected ArrayList clients;

//调试标记

protected boolean DEBUG=false;

public ChatParameter Chat;

//主方法构造一个ChatServer,没有返回值

public static void main(String[] argv){

System.out.println("Chat server0.1 starting");

ChatServer w=new ChatServer();

w.runServer();

System.out.println("***ERROR*** Chat server0.1 quitting");

}

//构造和运行一个聊天服务

ChatServer(){

Chat=new ChatParameter();

clients=new ArrayList();

try{

servSock=new ServerSocket(7777);//实有问题拉,不过可能是他自己定义既一个class.

System.out.println("Chat Server0.1 listening on port:"+7777);

}catch(Exception e){

log("IO Exception in ChatServer.init");

System.exit(0);

}

}

public void runServer(){

try{

while(true){

Socket us=servSock.accept();

String hostName=us.getInetAddress().getHostName();

System.out.println("Accpeted from "+hostName);

//一个处理的线程

ChatHandler cl=new ChatHandler(us,hostName);

synchronized(clients){

clients.add(cl);

cl.start();

if(clients.size()==1)

cl.send(CHATMASTER_ID,"Welcome!You are the first one here");

else{

cl.send(CHATMASTER_ID,"Welcome!You are the latest of"+

clients.size()+" users.");

}

}

}

}catch(Exception e){

log("IO Exception in runServer:"+e);

System.exit(0);

}

}

protected void log(String s){

System.out.println(s);

}

//处理会话的内部的类

protected class ChatHandler extends Thread {

//客户端scoket

protected Socket clientSock;

//读取socket的BufferedReader

protected BufferedReader is ;

//在socket 上发送信息行的PrintWriter

protected PrintWriter pw;

//客户端出主机

protected String clientIP;

//句柄

protected String login;

public ChatHandler (Socket sock,String clnt)throws IOException {

clientSock=sock;

clientIP=clnt;

is=new BufferedReader(

new InputStreamReader(sock.getInputStream()));

pw=new PrintWriter (sock.getOutputStream(),true);

}

//每一个ChatHandler是一个线程,下面的是他的run()方法

//用于处理会话

public void run(){

String line;

try{

while((line=is.readLine())!=null){

char c=line.charAt(0);//我顶你老母啊 ,果只Chat.CMD咩xx冇定义 扑啊///!!!

line=line.substring(1);

switch(c){

//case Chat.CMD_LOGIN:

case 'l':

if(!Chat.isValidLoginName(line)){

send(CHATMASTER_ID,"LOGIN"+line+"invalid");

log("LOGIN INVALID from:"+clientIP);

continue;

}

login=line;

broadcast(CHATMASTER_ID,login+" joins us,for a total of"+

clients.size()+" users");

break;

// case Chat.CMD_MESG:

case 'm':

if(login==null){

send(CHATMASTER_ID,"please login first");

continue;

}

int where =line.indexOf(Chat.SEPARATOR);

String recip=line.substring(0,where);

String mesg=line.substring (where+1);

log("MESG: "+login+"---"+recip+": "+mesg);

ChatHandler cl=lookup(recip);

if(cl==null)

psend(CHATMASTER_ID,recip+"not logged in.");

else

cl.psend(login,mesg);

break;

//case Chat.CMD_QUIT:

case 'q':

broadcast(CHATMASTER_ID,"Goodbye to "+login+"@"+clientIP);

close();

return;//ChatHandler结束

// case Chat.CMD_BCAST:

case 'b':

if(login!=null)

broadcast(login,line);

else

log("BL FROM"+clientIP);

break;

default:

log("Unknow cmd"+c+"from"+login+"@"+clientIP);

}

}

}catch(IOException e){

log("IO Exception :"+e);

}finally{

//sock 结束,我们完成了

//还不能发送再见的消息

//得有简单的基于命令的协议才行

System.out.println(login+SEP+"All Done");

synchronized(clients){

clients.remove(this);

if(clients.size()==0){

System.out.println(CHATMASTER_ID+SEP+

"I'm so lonely I could cry");

}else if(clients.size()==1){

ChatHandler last=(ChatHandler)clients.get(0);

last.send(CHATMASTER_ID,"Hey,you are talking to yourself again");

}

else{

broadcast(CHATMASTER_ID,"There are now"+clients.size()+" users");

}

}

}

}

protected void close(){

if(clientSock==null){

log("close when not open");

return;

}

try{

clientSock.close();

clientSock=null;

}catch(IOException e){

log("Failure during close to "+clientIP);

}

}

//发送一条消息给用户

public void send(String sender,String mesg){

pw.println(sender+SEP+"*"+mesg);

}

//发送私有的消息

protected void psend(String sender ,String msg){

send("*"+sender+"*",msg);

}

//发送一条消息给所有的用户

public void broadcast (String sender,String mesg){

System.out.println("Broadcasting"+sender+SEP+mesg);

for(int i=0;iclients.size();i++){

ChatHandler sib=(ChatHandler)clients.get(i);

if(DEBUG)

System.out.println("Sending to"+sib);

sib.send(sender,mesg);

}

if(DEBUG) System.out.println("Done broadcast");

}

protected ChatHandler lookup(String nick){

synchronized(clients){

for(int i=0;iclients.size();i++){

ChatHandler cl=(ChatHandler)clients.get(i);

if(cl.login.equals(nick))

return cl;

}

}

return null;

}

//将ChatHandler对象转换成一个字符串

public String toString(){

return "ChatHandler["+login+"]";

}

}

}

public class ChatParameter {

public static final char CMD_BCAST='b';

public static final char CMD_LOGIN='l';

public static final char CMD_MESG='m';

public static final char CMD_QUIT='q';

public static final char SEPARATOR=':';//?????

public static final int PORTNUM=7777;

public boolean isValidLoginName(String line){

if (line.equals("CHATMASTER_ID"))

return false;

return true;

}

public void main(String[] argv){

}

}

记得加分啊!!!

关于仿QQ聊天对话框的JAVA代码

1、swing的界面可以直接用netbeans画出来嘛。

2、可以把输出的聊天内容都放在一个StringBuffer里，每打出一句话，就把这句话追加在StringBuffer，然后把StringBuffer里的内容输出到Textarea中。

3、好友列表可以用JList

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