java聊天代码 java在线聊天

急需一个java编程实现的简单聊天窗口代码

import java.awt.*;

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import java.awt.event.*;

import javax.swing.*;

import java.net.*;

import java.io.*;

public class ClientDemo01 {

public static void main(String[] args){

JFrame f=new JFrame("AA");

JPanel p1=new JPanel();

JPanel p2=new JPanel();

JTextArea ta=new JTextArea(15,30);

ta.setEditable(false); //文本域只读

JScrollPane sp=new JScrollPane(ta); //滚动窗格

JTextField tf=new JTextField(20);

JButton b=new JButton("发送");

p1.add(sp);

p2.add(tf);

p2.add(b);

f.add(p1,"Center");

f.add(p2,"South");

f.setBounds(300,300,360,300);

f.setVisible(true);

f.setResizable(false);

f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

Socket socket=null;

BufferedInputStream bis=null;

BufferedOutputStream bos=null;

try{

socket=new Socket("192.168.0.4",5000);

bis=new BufferedInputStream(socket.getInputStream());

bos=new BufferedOutputStream(socket.getOutputStream());

MyThread01 mt=new MyThread01(bis,ta);

mt.start();

}catch(Exception e){

e.printStackTrace();

}

b.addActionListener(new ButtonActionListener01(tf,ta,bos));

}

}

class ButtonActionListener01 implements ActionListener{

JTextField tf;

JTextArea ta;

BufferedOutputStream bos;

public ButtonActionListener01(JTextField tf,JTextArea ta,BufferedOutputStream bos){

this.tf=tf;

this.ta=ta;

this.bos=bos;

}

public void actionPerformed(ActionEvent e){

String message=tf.getText();

if(!message.equals("")){

tf.setText(""); //清空文本框

ta.append("AA:"+message+"\n"); //添加到文本域并换行

try{

bos.write(message.getBytes());

bos.flush();

}catch(Exception ex){

System.out.println("发送失败");

}

}

}

}

class MyThread01 extends Thread{

BufferedInputStream bis;

JTextArea ta;

public MyThread01(BufferedInputStream bis,JTextArea ta){

this.bis=bis;

this.ta=ta;

}

public void run(){

try{

while(true){

byte[] b=new byte[100];

int length=bis.read(b);

String message=new String(b,0,length);

ta.append("BB:"+message+"\n");

}

}catch(Exception e){

e.printStackTrace();

}

}

} import java.awt.*;

import java.awt.event.*;

import javax.swing.*;

import java.net.*;

import java.io.*;

public class ServerDemo01{

public static void main(String[] args){

JFrame f=new JFrame("BB");

JPanel p1=new JPanel();

JPanel p2=new JPanel();

JTextArea ta=new JTextArea(12,30); //文本域，第一个参数为行数，第二个参数为列数

ta.setEditable(false); //文本域只读

JScrollPane sp=new JScrollPane(ta); //滚动窗格

JTextField tf=new JTextField(20);

JButton b=new JButton("发送");

p1.add(sp);

p2.add(tf);

p2.add(b);

f.add(p1,"Center");

f.add(p2,"South");

f.setBounds(300,300,360,300);

f.setVisible(true);

f.setResizable(false);

f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

ServerSocket server=null;

Socket socket=null;

BufferedInputStream bis=null;

BufferedOutputStream bos=null;

try{

server=new ServerSocket(5000);

//ta.append("等待AA连接...\n");

socket=server.accept();

//ta.append("AA已连接\n");

bis=new BufferedInputStream(socket.getInputStream());

bos=new BufferedOutputStream(socket.getOutputStream());

MyThread1 mt=new MyThread1(bis,ta);

mt.start();

}catch(Exception e){

e.printStackTrace();

}

b.addActionListener(new ButtonActionListener1(tf,ta,bos));

}

}

class ButtonActionListener1 implements ActionListener{

JTextField tf;

JTextArea ta;

BufferedOutputStream bos;

public ButtonActionListener1(JTextField tf,JTextArea ta,BufferedOutputStream bos){

this.tf=tf;

this.ta=ta;

this.bos=bos;

}

public void actionPerformed(ActionEvent e){

String message=tf.getText(); //获取文本框中的内容

if(!message.equals("")){

tf.setText(""); //清空文本框

ta.append("BB:"+message+"\n"); //添加到文本域并换行

try{

bos.write(message.getBytes());

bos.flush();

}catch(Exception ex){

System.out.println("发送失败！");

}

}

}

}

class MyThread1 extends Thread{

BufferedInputStream bis;

JTextArea ta;

public MyThread1(BufferedInputStream bis,JTextArea ta){

this.bis=bis;

this.ta=ta;

}

public void run(){

try{

while(true){

byte[] b=new byte[100];

int length=bis.read(b);

String message=new String(b,0,length);

ta.append("AA:"+message+"\n");

}

}catch(Exception e){

e.printStackTrace();

}

}

}

请问能不能帮我写一个Java的聊天窗口文件源代码，不要很复杂，只要能运行，聊天就行了！我用淘宝金币换,谢

话说网上真的好多啊...

package client;

import java.awt.Color;

import java.awt.Container;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.awt.event.WindowAdapter;

import java.awt.event.WindowEvent;

import java.io.DataInputStream;

import java.io.DataOutputStream;

import java.io.IOException;

import java.net.Socket;

import java.util.Date;

import javax.swing.JButton;

import javax.swing.JFrame;

import javax.swing.JOptionPane;

import javax.swing.JScrollPane;

import javax.swing.JTextArea;

import javax.swing.JTextField;

public class ClientFrame extends JFrame{

private JTextArea allmsg;

private JTextField welcome,copyright,chatmsg;

private JButton send;

private JScrollPane js;

private boolean isConnected = true;

public DataOutputStream out;

public DataInputStream in;

public Socket s = null;

String nic; /* -- 保存用户昵称 --*/

/**

* 初始化客户端资源

* 1.获取从LoginFrame传递过来的参数

* 2.初始化界面元素

* 3.初始化通信所需要的资源 EG：输入/输出流(DataInputStream/DataOutputStream)

* */

public ClientFrame(String name,Socket socket)

{

this.setSize(310,660);

this.setLocation(290,50);

this.setTitle("聊天室客户端"+name+"");/* -- 指定窗口的标题 --*/

this.s = socket;/* -- 接收从LoginFrame中传递过来的Socket --*/

this.nic = name+" 说： ";

welcome = new JTextField(" "+name+" 欢迎您来到聊天室 ",100);

welcome.setBackground(Color.blue);

welcome.setEnabled(false);

copyright = new JTextField(" ----- all copyright @ TOP-king -----");

copyright.setEnabled(false);

allmsg = new JTextArea();

allmsg.setEditable(false);

allmsg.append(" 系统消息: 欢迎登录在线聊天室 \n");

js = new JScrollPane(allmsg);//为JTextArea添加滚动条

chatmsg = new JTextField("在此输入聊天信息");

chatmsg.addActionListener(new listen());

send = new JButton("发送");

send.addActionListener(new listen());/* -- 添加事件监听器 --*/

try {

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

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

} catch (IOException e) {JOptionPane.showMessageDialog(null, "系统异常","错误",JOptionPane.OK_CANCEL_OPTION);}

addcomponettocontainer();

/* -- 当用户关闭窗口时进行相关的处理 eg:Socket Data(Input/Output)Stream 的关闭--*/

this.addWindowListener(new WindowAdapter(){

public void windowClosing(WindowEvent we)

{

sendmsg("quitlogout");/* -- 向服务器端发送关闭信息 --*/

isConnected = false;

destory();/* -- 销毁窗口资源 --*/

}

});

new Thread(new linread()).start();/* -- 启动读取信息线程 --*/

}

public void addcomponettocontainer()

{

Container c = this.getContentPane();

c.setLayout(null);

welcome.setBounds(75,10,150,20);

js.setBounds(10,50,280,500);

chatmsg.setBounds(10,560,180,30);

send.setBounds(220,560,70,30);

copyright.setBounds(10,600,280,20);

c.add(welcome);

c.add(js);

c.add(chatmsg);

c.add(send);

c.add(copyright);

this.setVisible(true);

this.setResizable(false);

}

class listen implements ActionListener

{

public void actionPerformed(ActionEvent e) {

// TODO Auto-generated method stub

if(e.getSource()==send||e.getSource()==chatmsg)

{

String msg = chatmsg.getText().trim();

if("".equals(msg))

{

JOptionPane.showMessageDialog(null,"发送信息不能为空!","错误",JOptionPane.OK_OPTION);

}

else

{sendmsg((new Date()).toLocaleString()+"\n"+nic+msg+"\n");chatmsg.setText("");}

}

}

}

/* -- 向服务器端发送信息 --*/

public void sendmsg(String m)

{

if(isConnected)//如果socket的输出流没关闭

{

try {

out.writeUTF(m);

} catch (IOException e) {

JOptionPane.showMessageDialog(null,"发送信息失败!(系统异常)","错误",JOptionPane.OK_OPTION);

}

}

else

{

JOptionPane.showMessageDialog(null,"发送信息失败!(服务器关闭/网络故障)","错误",JOptionPane.OK_OPTION);

}

}

/* -- 读取信息线程 --*/

class linread implements Runnable

{

public void run()

{

read();

}

public void read()

{

while(isConnected)

{

try {

String msg = in.readUTF();

if("SYSTEM_CLOSED".equals(msg))

{

JOptionPane.showMessageDialog(null,"读取消息失败(服务器关闭/网络故障)！","错误",JOptionPane.OK_OPTION);

isConnected = false;

}

else

allmsg.append(msg+"\n");

} catch (IOException e) {

}

}//end while

JOptionPane.showMessageDialog(null,"读取消息失败(服务器关闭/网络故障)！","错误",JOptionPane.OK_OPTION);

}//end read()

}

public void destory()

{

try {

this.out.close();

this.in.close();

this.s.close();

} catch (IOException e) {

}

this.dispose();

}

}

======================================================

package client;

import java.awt.*;

import javax.swing.*;

import java.awt.event.*;

import java.io.*;

import java.net.*;

public class LoginFrame extends JFrame{

private JTextField name;

private JTextField ip;

private JButton ok,cancle;

public Socket socket;

public LoginFrame()

{

super("登录框");

this.setSize(400,80);

this.setLocation(100,100);

name = new JTextField("昵称");

ip = new JTextField("127.0.0.1");

ok = new JButton("登录");

cancle = new JButton("取消");

ok.addActionListener(new listenEvent());

cancle.addActionListener(new listenEvent());

//建立容器

addcomponettocontainer();

this.setDefaultCloseOperation(EXIT_ON_CLOSE);

}

/**

* 建立容器及控件

*/

public void addcomponettocontainer()

{

Container c = this.getContentPane();

c.setLayout(null);

name.setBounds(10,10,100,30);

ip.setBounds(120,10,100,30);

ok.setBounds(230,10,70,30);

cancle.setBounds(310,10,70,30);

c.add(name);

c.add(ip);

c.add(ok);

c.add(cancle);

this.setVisible(true);

this.setResizable(false);

}

public class listenEvent implements ActionListener

{

public void actionPerformed(ActionEvent event) {

// TODO Auto-generated method stub

if(event.getSource()==ok)

{

String n = name.getText().trim();

String i = ip.getText().trim();

if("".equals(n)||"".equals(i))

{

JOptionPane.showMessageDialog(null,"昵称、IP不能够为空!","错误",JOptionPane.OK_OPTION);

}

else{login(n,i);}

}

if(event.getSource()==cancle)

{

name.setText("");

ip.setText("");

}

}

}

/**

* 进行登录

* @param name

* @param ip

*/

public void login(String name,String ip)

{

try {

socket = new Socket(ip,7777);

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

out.writeUTF(name);

out.flush();//强制输出缓存中的内容

//out.close();

new ClientFrame(name,socket);

destroywindow();

} catch (UnknownHostException e) {

JOptionPane.showMessageDialog(null,"找不到主机地址(IP错误/网络故障)！","错误",JOptionPane.OK_OPTION);

} catch (IOException e) {

}

}

public void destroywindow()

{

this.dispose();

}

public static void main(String[] args)

{

new LoginFrame();

}

}

==================================================

package server;

import java.awt.Container;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.awt.event.WindowAdapter;

import java.awt.event.WindowEvent;

import java.io.DataInputStream;

import java.io.DataOutputStream;

import java.io.IOException;

import java.net.ServerSocket;

import java.net.Socket;

import java.util.ArrayList;

import java.util.Date;

import javax.swing.JButton;

import javax.swing.JFrame;

import javax.swing.JOptionPane;

import javax.swing.JScrollPane;

import javax.swing.JTextArea;

import javax.swing.JTextField;

public class ServerFrame extends JFrame{

/**

*

*/

private static final long serialVersionUID = 1L;

private JTextArea allmsg;

private JTextField currnum,totalnum,copyright,chatmsg;

private JButton send;

private JScrollPane js;

int num1,num2,port;/* -- num1:当前在线人数 num2:总上线人数 port:服务端口号 --*/

private ServerSocket ss;

ArrayListuser lists;//存放所有在线用户

public ServerFrame()

{

super("聊天室服务器端");

this.setSize(310,660);

this.setLocation(200,50);

lists = new ArrayListuser();

num1 = num2 =0;

port = 7777;

currnum = new JTextField(" 当前在线人数： "+num1);

currnum.setEnabled(false);

totalnum = new JTextField(" 上线总人数： "+num2);

totalnum.setEnabled(false);

copyright = new JTextField(" ----- all copyright @ TOP-king -----");

copyright.setEnabled(false);

allmsg = new JTextArea();

allmsg.append(" --------------- 系统消息 --------------\n");

allmsg.setEditable(false);

allmsg.setLineWrap(true); //允许自动换行

js = new JScrollPane(allmsg);//为JTextArea添加滚动条

chatmsg = new JTextField("在此输入系统信息");

chatmsg.addActionListener(new ActionListener(){

@SuppressWarnings("deprecation")

public void actionPerformed(ActionEvent arg0) {

String str = chatmsg.getText().trim();

if(!"".equals(str))

{sendmsg((new Date()).toLocaleString()+" -- 系统消息： "+str);chatmsg.setText("");}

else

JOptionPane.showMessageDialog(null, "消息不能为空","错误",JOptionPane.OK_OPTION);

chatmsg.setText("");/* -- 发送信息后，将输入栏中的信息清空 -- */

}

});

send = new JButton("发送");

send.addActionListener(new ActionListener(){

@SuppressWarnings("deprecation")

public void actionPerformed(ActionEvent arg0) {

String str = chatmsg.getText().trim();

if(!"".equals(str))

{sendmsg((new Date()).toLocaleString()+" -- 系统消息： "+str);chatmsg.setText("");}

else

JOptionPane.showMessageDialog(null, "消息不能为空","错误",JOptionPane.OK_OPTION);

chatmsg.setText("");/* -- 发送信息后，将输入栏中的信息清空 -- */

}

});

//建立容器

addcomponettocontainer();

this.addWindowListener(new WindowAdapter(){

public void windowClosing(WindowEvent we)

{

sendmsg("SYSTEM_CLOSED");/* -- 向客户端发送服务器关闭信息 -- */

destory();

}

});

start(); /* -- 启动连接服务 -- */

}

public void addcomponettocontainer()

{

//Container建立容器

Container c = this.getContentPane();

c.setLayout(null);

currnum.setBounds(20,15,130,20);

totalnum.setBounds(155,15,125,20);

js.setBounds(10,50,280,500);

chatmsg.setBounds(10,560,180,30);

send.setBounds(220,560,70,30);

copyright.setBounds(10,600,280,20);

c.add(currnum);

c.add(totalnum);

c.add(js);

c.add(chatmsg);

c.add(send);

c.add(copyright);

this.setVisible(true);

this.setResizable(false);

}

/**

* start()方法监听客户的连接

* 并且保存客户端的相关信息EG：用户昵称、用户所使用的Socket

* 用户连接到服务器成功之后，将其保存到用户列表中，并为该用户启动一个线程用于通信 */

@SuppressWarnings("deprecation")

public void start()

{

boolean isStarted = false;/* -- 用于标记服务器是否已经正常启动 -- */

try {

this.ss = new ServerSocket(port);

isStarted = true;

this.allmsg.append((new Date()).toLocaleString()+" 服务器启动 @ 端口: "+port+"\n");

while(isStarted)

{

Socket client = this.ss.accept(); /* -- 监听客户端的连接 -- */

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

String name = in.readUTF();

user u = new user();

u.name = name;

u.socket = client;

lists.add(u); //将该用户加到列表中去

num1++;

num2++;

currnum.setText(" 当前在线人数： "+num1);

totalnum.setText(" 上线总人数： "+num2);

this.allmsg.append((new Date()).toLocaleString()+" : "+u.name+" 登录 \n");

new Thread(new ClientThread(u)).start();/* -- 为该用户启动一个通信线程 -- */

}

} catch (IOException e) {

System.out.println("服务器已经启动......");

System.exit(0);

}

}

/**

* 通信线程主要功能包括：

* 1.监听客户端输入的信息

* 2.将接收到的信息转发给其他用户 */

class ClientThread implements Runnable

{

user user = null;

boolean isConnected = true;

DataInputStream dis = null;

DataOutputStream dos = null;

public ClientThread(user u)

{

this.user = u;

try {

this.dis = new DataInputStream(this.user.socket.getInputStream());

this.dos = new DataOutputStream(this.user.socket.getOutputStream());

} catch (IOException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

}

public void run()

{

readmsg();

}

/* -- 读取客户的聊天信息 -- */

@SuppressWarnings("deprecation")

public void readmsg()

{

while(isConnected)

{

try {

String msg = dis.readUTF();

if("quitlogout".equals(msg))//当用户关闭客户端窗口时，发送quit字符串 表示用户已经退出

{

num1--;

try{

this.dis.close();

this.dos.close();

this.user.socket.close();

this.isConnected = false;

}catch(IOException ioe)

{

ioe.printStackTrace();

}finally{

this.isConnected = false;

if(dis!=null) this.dis.close();

if(dos!=null) this.dos.close();

if(this.user.socket!=null) this.user.socket.close();

}

lists.remove(this.user);//从列表中删除该用户

currnum.setText(" 当前在线人数： "+num1);

allmsg.append((new Date()).toLocaleString()+" : "+this.user.name+" 退出\n");

}

else

sendmsg(msg);

} catch (IOException e) {

e.printStackTrace();

}

}

}

}

/* -- 将信息进行转发 -- */

public void sendmsg(String msg)

{

user us = new user();

DataOutputStream os = null;

if(lists.size()0)

{

for(int i=0;ilists.size();i++)

{

us = lists.get(i);

try {

os = new DataOutputStream(us.socket.getOutputStream());

os.writeUTF(msg);

} catch (IOException e) {

e.printStackTrace();

}

}

}

else

JOptionPane.showMessageDialog(null, "当前无用户在线。发送消息失败","失败",JOptionPane.OK_OPTION);

}

public void destory()

{

try {

this.ss.close();

} catch (IOException e) {

e.printStackTrace();

}

this.dispose();

}

public static void main(String[] args)

{

new ServerFrame();

}

}

=================================================

package server;

import java.net.*;

public class user {

String name;

Socket socket;

}

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();

}

}

}

java 聊天室 源代码

【ClientSocketDemo.java 客户端Java源代码】

import java.net.*;

import java.io.*;

public class ClientSocketDemo

{

//声明客户端Socket对象socket

Socket socket = null;

//声明客户器端数据输入输出流

DataInputStream in;

DataOutputStream out;

//声明字符串数组对象response，用于存储从服务器接收到的信息

String response[];

//执行过程中，没有参数时的构造方法，本地服务器在本地，取默认端口10745

public ClientSocketDemo()

{

try

{

//创建客户端socket，服务器地址取本地，端口号为10745

socket = new Socket("localhost",10745);

//创建客户端数据输入输出流，用于对服务器端发送或接收数据

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

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

//获取客户端地址及端口号

String ip = String.valueOf(socket.getLocalAddress());

String port = String.valueOf(socket.getLocalPort());

//向服务器发送数据

out.writeUTF("Hello Server.This connection is from client.");

out.writeUTF(ip);

out.writeUTF(port);

//从服务器接收数据

response = new String[3];

for (int i = 0; i response.length; i++)

{

response[i] = in.readUTF();

System.out.println(response[i]);

}

}

catch(UnknownHostException e){e.printStackTrace();}

catch(IOException e){e.printStackTrace();}

}

//执行过程中，有一个参数时的构造方法，参数指定服务器地址，取默认端口10745

public ClientSocketDemo(String hostname)

{

try

{

//创建客户端socket，hostname参数指定服务器地址，端口号为10745

socket = new Socket(hostname,10745);

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

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

String ip = String.valueOf(socket.getLocalAddress());

String port = String.valueOf(socket.getLocalPort());

out.writeUTF("Hello Server.This connection is from client.");

out.writeUTF(ip);

out.writeUTF(port);

response = new String[3];

for (int i = 0; i response.length; i++)

{

response[i] = in.readUTF();

System.out.println(response[i]);

}

}

catch(UnknownHostException e){e.printStackTrace();}

catch(IOException e){e.printStackTrace();}

}

//执行过程中，有两个个参数时的构造方法，第一个参数hostname指定服务器地址

//第一个参数serverPort指定服务器端口号

public ClientSocketDemo(String hostname,String serverPort)

{

try

{

socket = new Socket(hostname,Integer.parseInt(serverPort));

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

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

String ip = String.valueOf(socket.getLocalAddress());

String port = String.valueOf(socket.getLocalPort());

out.writeUTF("Hello Server.This connection is from client.");

out.writeUTF(ip);

out.writeUTF(port);

response = new String[3];

for (int i = 0; i response.length; i++)

{

response[i] = in.readUTF();

System.out.println(response[i]);

}

}

catch(UnknownHostException e){e.printStackTrace();}

catch(IOException e){e.printStackTrace();}

}

public static void main(String[] args)

{

String comd[] = args;

if(comd.length == 0)

{

System.out.println("Use localhost(127.0.0.1) and default port");

ClientSocketDemo demo = new ClientSocketDemo();

}

else if(comd.length == 1)

{

System.out.println("Use default port");

ClientSocketDemo demo = new ClientSocketDemo(args[0]);

}

else if(comd.length == 2)

{

System.out.println("Hostname and port are named by user");

ClientSocketDemo demo = new ClientSocketDemo(args[0],args[1]);

}

else System.out.println("ERROR");

}

}

////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

【ServerSocketDemo.java 服务器端Java源代码】

import java.net.*;

import java.io.*;

public class ServerSocketDemo

{

//声明ServerSocket类对象

ServerSocket serverSocket;

//声明并初始化服务器端监听端口号常量

public static final int PORT = 10745;

//声明服务器端数据输入输出流

DataInputStream in;

DataOutputStream out;

//声明InetAddress类对象ip，用于获取服务器地址及端口号等信息

InetAddress ip = null;

//声明字符串数组对象request，用于存储从客户端发送来的信息

String request[];

public ServerSocketDemo()

{

request = new String[3]; //初始化字符串数组

try

{

//获取本地服务器地址信息

ip = InetAddress.getLocalHost();

//以PORT为服务端口号，创建serverSocket对象以监听该端口上的连接

serverSocket = new ServerSocket(PORT);

//创建Socket类的对象socket，用于保存连接到服务器的客户端socket对象

Socket socket = serverSocket.accept();

System.out.println("This is server:"+String.valueOf(ip)+PORT);

//创建服务器端数据输入输出流，用于对客户端接收或发送数据

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

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

//接收客户端发送来的数据信息，并显示

request[0] = in.readUTF();

request[1] = in.readUTF();

request[2] = in.readUTF();

System.out.println("Received messages form client is:");

System.out.println(request[0]);

System.out.println(request[1]);

System.out.println(request[2]);

//向客户端发送数据

out.writeUTF("Hello client!");

out.writeUTF("Your ip is:"+request[1]);

out.writeUTF("Your port is:"+request[2]);

}

catch(IOException e){e.printStackTrace();}

}

public static void main(String[] args)

{

ServerSocketDemo demo = new ServerSocketDemo();

}

}

JAVA聊天室 客户端 和 服务器 完整代码

CS模式的QQ这是服务器:ChatServer.javaimport java.net.*;

import java.io.*;

public class ChatServer

{

final static int thePort=8189;

ServerSocket theServer;

ChatHandler[] chatters;

int numbers=0;

public static void main(String args[])

{

ChatServer app=new ChatServer();

app.run();

}

public ChatServer()

{

try

{

theServer=new ServerSocket(thePort);

chatters=new ChatHandler[10];

}

catch(IOException io){}

}

public void run()

{

try

{

System.out.println("服务器已经建立！");

while(numbers10)

{

Socket theSocket=theServer.accept();

ChatHandler chatHandler=new ChatHandler(theSocket,this);

chatters[numbers]=chatHandler;

numbers++;

}

}catch(IOException io){}

}

public synchronized void removeConnectionList(ChatHandler c)

{

int index=0;

for(int i=0;i=numbers-1;i++)

if(chatters[i]==c)index=i;

for(int i=index;inumbers-1;i++)

chatters[i]=chatters[i+1];

chatters[numbers-1]=null;

numbers--;

}

public synchronized String returnUsernameList()

{

String line="";

for(int i=0;i=numbers-1;i++)

line=line+chatters[i].user+":";

return line;

}

public void broadcastMessage(String line)

{

System.out.println("发布信息:"+line);

for(int i=0;i=numbers-1;i++)

chatters[i].sendMessage(line);

}

}====================================================这是客户端：ChatClient.javaimport java.awt.*;

import java.awt.event.*;

import javax.swing.*;

import java.net.*;

import java.io.*;

public class ChatClient extends Thread implements ActionListener

{

JTextField messageField,IDField,ipField,portField;

JTextArea message,users;

JButton connect,disconnect;

String user="";

String userList[]=new String[10];

Socket theSocket;

BufferedReader in;

PrintWriter out;

boolean connected=false;

Thread thread;

public static void main(String args[])

{

JFrame frame=new JFrame("聊天室");

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

ChatClient cc=new ChatClient();

JPanel content=cc.createComponents();

frame.getContentPane().add(content);

frame.setSize(550,310);

frame.setVisible(true);

}

public JPanel createComponents()

{

JPanel pane=new JPanel(new BorderLayout());

message=new JTextArea(10,35);

message.setEditable(false);

JPanel paneMsg=new JPanel();

paneMsg.setBorder(BorderFactory.createTitledBorder("聊天内容"));

paneMsg.add(message);

users=new JTextArea(10,10);

JPanel listPanel=new JPanel();

listPanel.setBorder(BorderFactory.createTitledBorder("在线用户:"));

listPanel.add(users);

messageField=new JTextField(50);

IDField=new JTextField(5);

ipField=new JTextField("LocalHost");

portField=new JTextField("8189");

connect=new JButton("连 接");

disconnect=new JButton("断 开");

disconnect.setEnabled(false);

JPanel buttonPanel=new JPanel();

buttonPanel.add(new Label("服务器IP:"));

buttonPanel.add(ipField);

buttonPanel.add(new Label("端口："));buttonPanel.add(portField);

buttonPanel.add(new Label("用户名："));

buttonPanel.add(IDField);

buttonPanel.add(connect);

buttonPanel.add(disconnect);

pane.add(messageField,"South");

pane.add(buttonPanel,"North");

pane.add(paneMsg,"Center");

pane.add(listPanel,"West");

connect.addActionListener(this);

disconnect.addActionListener(this);

messageField.addActionListener(this);

IDField.addActionListener(this);

ipField.addActionListener(this);

return pane;

}

public void actionPerformed(ActionEvent e)

{

if(e.getSource()==connect){

user=IDField.getText();

String ip=ipField.getText();

int port =Integer.parseInt(portField.getText());

if(!user.equals("")connectToServer(ip,port,user))

{

disconnect.setEnabled(true);

connect.setEnabled(false);

}

}

if(e.getSource()==disconnect)disconnectFromServer();

if(e.getSource()==messageField)

if(theSocket!=null)

{

out.println("MESSAGE:"+messageField.getText());

messageField.setText("");

}

}

public void disconnectFromServer()

{

if(theSocket!=null)

{

try

{

connected=false;

out.println("LEAVE:"+user);

disconnect.setEnabled(false);

connect.setEnabled(true);

thread=null;

theSocket.close();

}catch(IOException io){}

theSocket=null;

message.setText("");

users.setText("");

}

}

public boolean connectToServer(String ip,int port,String ID)

{

if(theSocket!=null)

return false;

try

{

theSocket=new Socket(ip,port);

in=new BufferedReader(new InputStreamReader(theSocket.getInputStream()));

out=new PrintWriter(new OutputStreamWriter(theSocket.getOutputStream()),true);

out.println("USER:"+user);

message.setText("");

connected=true;

thread=new Thread(this);

thread.start();

}catch(Exception e){return false;}

return true;

}

public void extractMessage(String line)

{

System.out.println(line);

Message messageline;

messageline=new Message(line);

if(messageline.isValid())

{

if(messageline.getType().equals("JOIN"))

{

user=messageline.getBody();

message.append(user+"进入了聊天室\n");

}

else if(messageline.getType().equals("LIST"))

updateList(messageline.getBody());

else if(messageline.getType().equals("MESSAGE"))

message.append(messageline.getBody()+"\n");

else if(messageline.getType().equals("REMOVE"))

message.append(messageline.getBody()+"离开了聊天室\n");

}

else

message.append("出现问题："+line+"\n");

}

public void updateList(String line)

{

users.setText("");

String str=line;

for(int i=0;i10;i++)

userList[i]="";

int index=str.indexOf(":");

int a=0;

while(index!=-1){

userList[a]=str.substring(0,index);

str=str.substring(index+1);

a++;

index=str.indexOf(":");

}

for(int i=0;i10;i++)

users.append(userList[i]+"\n");

}

public void run(){

try{

String line="";

while(connected line!=null){

line=in.readLine();

if(line!=null) extractMessage(line);

}

}catch(IOException e){}

}

} =======================================================import java.net.*;

import java.io.*;

class ChatHandler extends Thread{

Socket theSocket;

BufferedReader in;

PrintWriter out;

int thePort;

ChatServer parent;

String user="";

boolean disconnect=false;

public ChatHandler(Socket socket,ChatServer parent){

try{

theSocket=socket;

this.parent=parent;

in=new BufferedReader(new InputStreamReader(theSocket.getInputStream()));

out=new PrintWriter(new OutputStreamWriter(theSocket.getOutputStream()),true);

thePort=theSocket.getPort();

start();

}catch(IOException io){}

}

public void sendMessage(String line){

out.println(line);

}

public void setupUserName(String setname){

user=setname;

//System.out.print(user+"参加");

parent.broadcastMessage("JOIN:"+user);

}

public void extractMessage(String line){

Message messageline;

messageline = new Message(line);

if(messageline.isValid()){

if(messageline.getType().equals("USER")){

setupUserName(messageline.getBody());

parent.broadcastMessage("LIST:"+parent.returnUsernameList());

}

else if(messageline.getType().equals("MESSAGE")){

parent.broadcastMessage("MESSAGE:"+user+"说: "+messageline.getBody());

}

else if(messageline.getType().equals("LEAVE")){

String c=disconnectClient();

parent.broadcastMessage("REMOVE:"+c);

parent.broadcastMessage("LIST:"+parent.returnUsernameList());

}

}

else

sendMessage("命令不存在!");

}

public String disconnectClient(){

try{

in.close();

out.close();

theSocket.close();

parent.removeConnectionList(this);

disconnect=true;

}catch(Exception ex){}

return user;

}

public void run(){

String line,name;

boolean valid=false;

try{

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

System.out.println("收到:"+line);

extractMessage(line);

}

}catch(IOException io){}

}

}

=========================================================

Message.javapublic class Message{

private String type;

private String body;

private boolean valid;

public Message(String messageLine){

valid=false;

type=body=null;

int pos=messageLine.indexOf(":");

if(pos=0){

type=messageLine.substring(0,pos).toUpperCase();

body=messageLine.substring(pos+1);

valid=true;

}

}

public Message(String type,String body){

valid=true;

this.type=type;

this.body=body;

}

public String getType(){

return type;

}

public String getBody(){

return body;

}

public boolean isValid(){

return valid;

}

} ==================================================共有4个文件，先运行服务段端。。。 这是我以前学的时候写过的！希望能帮的上你