急求一個(gè)JAVA編寫(xiě)的局域網(wǎng)聊天代碼？不要求很復(fù)雜。只要可以在兩臺(tái)機(jī)子上簡(jiǎn)單的對(duì)話就可以。

//以下引入包

讓客戶滿意是我們工作的目標(biāo)，不斷超越客戶的期望值來(lái)自于我們對(duì)這個(gè)行業(yè)的熱愛(ài)。我們立志把好的技術(shù)通過(guò)有效、簡(jiǎn)單的方式提供給客戶，將通過(guò)不懈努力成為客戶在信息化領(lǐng)域值得信任、有價(jià)值的長(zhǎng)期合作伙伴，公司提供的服務(wù)項(xiàng)目有：域名與空間、網(wǎng)頁(yè)空間、營(yíng)銷(xiāo)軟件、網(wǎng)站建設(shè)、扎蘭屯網(wǎng)站維護(hù)、網(wǎng)站推廣。

import javax.swing.*;

import java.awt.*;

import java.awt.event.*;

import java.io.*;

import java.net.*;

import java.applet.*;

public class regit extends JApplet implements ActionListener,ItemListener//接口

{

String s=null;

//對(duì)象的聲明

JLabel labelname,labelpass,labelsxe,labeladdress,labelmail,labelphone;//標(biāo)簽

JTextField textname,textaddress,textmail,textphone;//文本框

JRadioButton r1,r2;//單選按紐

ButtonGroup bg;//組

JPasswordField textpass;//密碼域

JButton buttonregit,buttonreset;//注冊(cè)按紐 重寫(xiě)按紐

JPanel p;//面板

String sex;//定義性別字符串

URL url;//統(tǒng)一資源定位

BufferedWriter out1,out2;//流

BufferedReader in;

//布局方式

GridBagLayout gbl;

GridBagConstraints gc;

AppletContext co;//接口

//初始化

public void init()

{

//new 對(duì)象

labelname=new JLabel("用 戶 名:");

labelpass=new JLabel("用戶密碼:");

labelsxe=new JLabel("性別:");

labeladdress=new JLabel("地址:");

labelmail=new JLabel("電子郵件:");

labelphone=new JLabel("聯(lián)系電話:");

textname=new JTextField(15); textname.setForeground(Color.red);

textname.setToolTipText("請(qǐng)?jiān)谶@輸入你的用戶名");

textaddress=new JTextField(15);textaddress.setForeground(Color.red);

textaddress.setToolTipText("請(qǐng)?jiān)谶@輸入你的地址");

textmail=new JTextField(15); textmail.setForeground(Color.red);

textmail.setToolTipText("請(qǐng)?jiān)谶@里輸入你的E-mail地址");

textphone=new JTextField(15); textphone.setForeground(Color.red);

textphone.setToolTipText("請(qǐng)?jiān)谶@輸入你的電話號(hào)碼");

r1=new JRadioButton("男"); r1.setBackground(new Color(47,177,210));//設(shè)置顏色

r2=new JRadioButton("女"); r2.setBackground(new Color(47,177,210));//設(shè)置顏色

bg=new ButtonGroup();

bg.add(r1);bg.add(r2);//加入組,實(shí)現(xiàn)單選

textpass=new JPasswordField(15);

textpass.setToolTipText("在這里輸入密碼");

textpass.setForeground(Color.red);

buttonregit=new JButton("注冊(cè)"); buttonregit.setBackground(new Color(47,177,210));//設(shè)置顏色

buttonregit.setToolTipText("點(diǎn)擊按紐完成注冊(cè)");

buttonreset=new JButton("填寫(xiě)"); buttonreset.setBackground(new Color(47,177,210));//設(shè)置顏色

buttonreset.setToolTipText("點(diǎn)擊按紐刷新重寫(xiě)");

gbl=new GridBagLayout(); ///////////////////////////////////////

gc=new GridBagConstraints(); //////采用GridBagLayout布局方式////////

p=new JPanel();

p.setLayout(gbl);

p.setBackground(new Color(47,177,210));

this.getContentPane().add(p);//加入面板

gc.anchor=GridBagConstraints.NORTHWEST;

gc.gridx=2;

gc.gridy=2;

gbl.setConstraints(labelname,gc);

p.add(labelname);

gc.anchor=GridBagConstraints.NORTHWEST;

gc.gridx=4;

gc.gridy=2;

gbl.setConstraints(textname,gc);

p.add(textname);

gc.anchor=GridBagConstraints.NORTHWEST;

gc.gridx=2;

gc.gridy=4;

gbl.setConstraints(labelpass,gc);

p.add(labelpass);

gc.anchor=GridBagConstraints.NORTHWEST;

gc.gridx=4;

gc.gridy=4;

gbl.setConstraints(textpass,gc);

p.add(textpass);

gc.anchor=GridBagConstraints.NORTHWEST;

gc.gridx=2;

gc.gridy=6;

gbl.setConstraints(labelsxe,gc);

p.add(labelsxe);

gc.anchor=GridBagConstraints.NORTHWEST;

gc.gridx=4;

gc.gridy=6;

gbl.setConstraints(r1,gc);

p.add(r1);

gc.anchor=GridBagConstraints.NORTHWEST;

gc.gridx=5;

gc.gridy=6;

gbl.setConstraints(r2,gc);

p.add(r2);

gc.anchor=GridBagConstraints.NORTHWEST;

gc.gridx=2;

gc.gridy=8;

gbl.setConstraints(labeladdress,gc);

p.add(labeladdress);

gc.anchor=GridBagConstraints.NORTHWEST;

gc.gridx=4;

gc.gridy=8;

gbl.setConstraints(textaddress,gc);

p.add(textaddress);

gc.anchor=GridBagConstraints.NORTHWEST;

gc.gridx=2;

gc.gridy=10;

gbl.setConstraints(labelmail,gc);

p.add(labelmail);

gc.anchor=GridBagConstraints.NORTHWEST;

gc.gridx=4;

gc.gridy=10;

gbl.setConstraints(textmail,gc);

p.add(textmail);

gc.anchor=GridBagConstraints.NORTHWEST;

gc.gridx=2;

gc.gridy=12;

gbl.setConstraints(labelphone,gc);

p.add(labelphone);

gc.anchor=GridBagConstraints.NORTHWEST;

gc.gridx=4;

gc.gridy=12;

gbl.setConstraints(textphone,gc);

p.add(textphone);

gc.anchor=GridBagConstraints.NORTHWEST;

gc.gridx=2;

gc.gridy=16;

gbl.setConstraints(buttonregit,gc);

p.add(buttonregit);

gc.anchor=GridBagConstraints.NORTHWEST;

gc.gridx=4;

gc.gridy=16;

gbl.setConstraints(buttonreset,gc);

p.add(buttonreset);

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

co=this.getAppletContext();

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

buttonregit.addActionListener(this);//按紐事件的監(jiān)聽(tīng)

buttonreset.addActionListener(this);//按紐事件的監(jiān)聽(tīng)

r1.addItemListener(this);//選擇事件的監(jiān)聽(tīng)

r2.addItemListener(this);//選擇事件的監(jiān)聽(tīng)

textphone.addActionListener(this);

}

public void actionPerformed(ActionEvent e)

{

//注冊(cè)按紐事件

if(e.getSource()==buttonregit)

{

String s1=textname.getText(); ////////////////////

String s2=new String(textpass.getPassword());////////////////////

String s3=textaddress.getText(); // 定義字符串 //

String s4=textmail.getText(); ////////////////////

String s5=textphone.getText(); ////////////////////

//判斷注冊(cè)資料 信息 是否為空

if(s1.length()==0 || s2.length()==0 ||s3.length()==0 ||s4.length()==0 ||s5.length()==0)

{

int error=JOptionPane.INFORMATION_MESSAGE;

JOptionPane.showMessageDialog(null,"資料不能為空，請(qǐng)重新注冊(cè)！","【溫馨提示】",error);

return;//彈出對(duì)話框并返回

}

try//寫(xiě)入到txt文件

{

in=new BufferedReader(new FileReader("d:\\迷離視線聊天室\\password.txt"));

}

catch(Exception ee){}

String ss=s1;

try

{

while((s=in.readLine())!=null)

{

if(s.startsWith(ss))

{

JOptionPane.showMessageDialog(null,"用戶名已經(jīng)存在，請(qǐng)更換名字！");

textname.setText("");//設(shè)置為空，重新輸入

textpass.setText("");

textaddress.setText("");

textmail.setText("");

textphone.setText("");

return;

}

}

}

catch(Exception ee){}

///////////////////////////以上代碼判斷是否有同名

{

try

{

out1=new BufferedWriter(new FileWriter("d:\\迷離視線聊天室\\password.txt",true));

out2=new BufferedWriter(new FileWriter("d:\\迷離視線聊天室\\message.txt",true));

}//創(chuàng)建文件

catch(Exception ee)

{}

try

{

out1.write(s1+"#"+s2);//寫(xiě)

out1.newLine();

out2.write("用戶名："+s1);

out2.newLine();

out2.write("密碼："+s2);

out2.newLine();

out2.write("性別："+sex);

out2.newLine();

out2.write("地址："+s3);

out2.newLine();

out2.write("電子郵件："+s4);

out2.newLine();

out2.write("電話："+s5);

out2.newLine();

out1.flush();

out2.flush();//清理緩沖

out1.close();

out2.close();

}

catch(Exception ee)

{}

JOptionPane.showMessageDialog(null,"注冊(cè)成功！");

try

{

String qss="";

url=new url(/qss);//連接上網(wǎng)址

co.showDocument(url);

}

catch(Exception exx)

{}

}

}

//////////////////////以下為回車(chē)事件

if(e.getSource()==textphone)

{

String s1=textname.getText(); ////////////////////

String s2=new String(textpass.getPassword());////////////////////

String s3=textaddress.getText(); // 定義字符串 //

String s4=textmail.getText(); ////////////////////

String s5=textphone.getText(); ////////////////////

//判斷注冊(cè)資料 信息 是否為空

if(s1.length()==0 || s2.length()==0 ||s3.length()==0 ||s4.length()==0 ||s5.length()==0)

{

int error=JOptionPane.INFORMATION_MESSAGE;

JOptionPane.showMessageDialog(null,"資料不能為空，請(qǐng)重新注冊(cè)！","【溫馨提示】",error);

return;//彈出對(duì)話框并返回

}

try//寫(xiě)入到txt文件

{

in=new BufferedReader(new FileReader("d:\\迷離視線聊天室\\password.txt"));

}

catch(Exception ee){}

String ss=s1;

try

{

while((s=in.readLine())!=null)

{

if(s.startsWith(ss))

{

JOptionPane.showMessageDialog(null,"用戶名已經(jīng)存在，請(qǐng)更換名字！");

textname.setText("");//設(shè)置為空，重新輸入

textpass.setText("");

textaddress.setText("");

textmail.setText("");

textphone.setText("");

return;

}

}

}

catch(Exception ee){}

///////////////////////////以上代碼判斷是否有同名

{

try

{

out1=new BufferedWriter(new FileWriter("d:\\迷離視線聊天室\\password.txt",true));

out2=new BufferedWriter(new FileWriter("d:\\迷離視線聊天室\\message.txt",true));

}//創(chuàng)建文件

catch(Exception ee)

{}

try

{

out1.write(s1+"#"+s2);//寫(xiě)

out1.newLine();

out2.write("用戶名："+s1+"密碼："+s2+"性別："+sex+"地址："+s3+"電子郵件："+s4+"電話："+s5);//寫(xiě)

out2.newLine();

out1.flush();

out2.flush();//清理緩沖

out1.close();

out2.close();

}

catch(Exception ee)

{}

JOptionPane.showMessageDialog(null,"注冊(cè)成功！");

try

{

String qss="";

url=new url(/qss);//連接上網(wǎng)址

co.showDocument(url);

}

catch(Exception exx)

{}

}

}

if(e.getSource()==buttonreset)//刷新重寫(xiě)事件

{

textname.setText("");

textpass.setText("");

textaddress.setText("");

textmail.setText("");

textphone.setText("");

}

}

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

//

public void itemStateChanged(ItemEvent ex)

{

if(ex.getSource()==r1)

{

sex=new String("男");

}

else if(ex.getSource()==r2)

{

sex=new String("女");

}

}

}

參考資料：試試看,剛在網(wǎng)上找的

急需一個(gè)java編程實(shí)現(xiàn)的簡(jiǎn)單聊天窗口代碼

import java.awt.*;

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); //文本域只讀

JScrollPane sp=new JScrollPane(ta); //滾動(dòng)窗格

JTextField tf=new JTextField(20);

JButton b=new JButton("發(fā)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"); //添加到文本域并換行

try{

bos.write(message.getBytes());

bos.flush();

}catch(Exception ex){

System.out.println("發(fā)送失敗");

}

}

}

}

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，第一個(gè)參數(shù)為行數(shù)，第二個(gè)參數(shù)為列數(shù)

ta.setEditable(false); //文本域只讀

JScrollPane sp=new JScrollPane(ta); //滾動(dòng)窗格

JTextField tf=new JTextField(20);

JButton b=new JButton("發(fā)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連接...\n");

socket=server.accept();

//ta.append("AA已連接\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(); //獲取文本框中的內(nèi)容

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

tf.setText(""); //清空文本框

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

try{

bos.write(message.getBytes());

bos.flush();

}catch(Exception ex){

System.out.println("發(fā)送失??！");

}

}

}

}

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();

}

}

}

用JAVA 編寫(xiě)簡(jiǎn)單網(wǎng)絡(luò)聊天程序

/**

* 基于UDP協(xié)議的聊天程序

*

* 2007.9.18

* */

//導(dǎo)入包

import java.awt.*;

import java.awt.event.*;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import javax.swing.*;

import java.net.*;

public class Chat extends JFrame implements ActionListener

{

//廣播地址或者對(duì)方的地址

public static final String sendIP = "172.18.8.255";

//發(fā)送端口9527

public static final int sendPort = 9527;

JPanel p = new JPanel();

List lst = new List(); //消息顯示

JTextField txtIP = new JTextField(18); //填寫(xiě)IP地址

JTextField txtMSG = new JTextField(20); //填寫(xiě)發(fā)送消息

JLabel lblIP = new JLabel("IP地址:");

JLabel lblMSG = new JLabel("消息:");

JButton btnSend = new JButton("發(fā)送");

byte [] buf;

//定義DatagramSocket的對(duì)象必須進(jìn)行異常處理

//發(fā)送和接收數(shù)據(jù)報(bào)包的套接字

DatagramSocket ds = null;

//=============構(gòu)造函數(shù)=====================

public Chat()

{

CreateInterFace();

//注冊(cè)消息框監(jiān)聽(tīng)器

txtMSG.addActionListener(this);

btnSend.addActionListener(this);

try

{

//端口:9527

ds =new DatagramSocket(sendPort);

}

catch(Exception ex)

{

ex.printStackTrace();

}

//============接受消息============

//匿名類(lèi)

new Thread(new Runnable()

{

public void run()

{

byte buf[] = new byte[1024];

//表示接受數(shù)據(jù)報(bào)包

while(true)

{

try

{

DatagramPacket dp = new DatagramPacket(buf,1024,InetAddress.getByName(txtIP.getText()),sendPort);

ds.receive(dp);

lst.add("【消息來(lái)自】◆" + dp.getAddress().getHostAddress() + "◆"+"【說(shuō)】:" + new String (buf,0,dp.getLength()) /*+ dp.getPort()*/,0);

}

catch(Exception e)

{

if(ds.isClosed())

{

e.printStackTrace();

}

}

}

}

}).start();

//關(guān)閉窗體事件

this.addWindowListener(new WindowAdapter()

{

public void windowClosing(WindowEvent w)

{

System.out.println("test");

int n=JOptionPane.showConfirmDialog(null,"是否要退出?","退出",JOptionPane.YES_NO_OPTION);

if(n==JOptionPane.YES_OPTION)

{

dispose();

System.exit(0);

ds.close();//關(guān)閉ds對(duì)象//關(guān)閉數(shù)據(jù)報(bào)套接字

}

}

});

}

//界面設(shè)計(jì)布局

public void CreateInterFace()

{

this.add(lst,BorderLayout.CENTER);

this.add(p,BorderLayout.SOUTH);

p.add(lblIP);

p.add(txtIP);

p.add(lblMSG);

p.add(txtMSG);

p.add(btnSend);

txtIP.setText(sendIP);

//背景顏色

lst.setBackground(Color.yellow);

//JAVA默認(rèn)風(fēng)格

this.setUndecorated(true);

this.getRootPane().setWindowDecorationStyle(JRootPane.FRAME);

this.setSize(600,500);

this.setTitle("〓聊天室〓");

this.setResizable(false);//不能改變窗體大小

this.setLocationRelativeTo(null);//窗體居中

this.setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE);

this.setVisible(true);

txtMSG.requestFocus();//消息框得到焦點(diǎn)

}

//===============================Main函數(shù)===============================

public static void main(String[]args)

{

new Chat();

}

//================================發(fā)送消息===============================

//消息框回車(chē)發(fā)送消息事件

public void actionPerformed(ActionEvent e)

{

//得到文本內(nèi)容

buf = txtMSG.getText().getBytes();

//判斷消息框是否為空

if (txtMSG.getText().length()==0)

{

JOptionPane.showMessageDialog(null,"發(fā)送消息不能為空","提示",JOptionPane.WARNING_MESSAGE);

}

else{

try

{

InetAddress address = InetAddress.getByName(sendIP);

DatagramPacket dp = new DatagramPacket(buf,buf.length,InetAddress.getByName(txtIP.getText()),sendPort);

ds.send(dp);

}

catch(Exception ex)

{

ex.printStackTrace();

}

}

txtMSG.setText("");//清空消息框

//點(diǎn)發(fā)送按鈕發(fā)送消息事件

if(e.getSource()==btnSend)

{

buf = txtMSG.getText().getBytes();

try

{

DatagramPacket dp = new DatagramPacket(buf,buf.length,InetAddress.getByName(txtIP.getText()),sendPort);

}

catch(Exception ex)

{

ex.printStackTrace();

}

txtMSG.setText("");//清空消息框

txtMSG.requestFocus();

}

}

}