JAVA局域网聊天系统源代码

这是我自己做的简单聊天系统客户端

package LiaoTianSys;

import java.awt.*;

import javax.swing.*;

import java.awt.*;

import java.awt.event.*;

import java.io.*;

import https://www.360docs.net/doc/0a1610167.html,.Socket;

import https://www.360docs.net/doc/0a1610167.html,.UnknownHostException;

public class ConversationFrame extends JFrame {

JScrollPane jsp;

JTextField jtf;

static JTextArea jta;

//JTextArea jat1,jta2;

JButton enter=new JButton("发送");

JButton jb=new JButton("聊天室好友");

JButton jb2=new JButton("进入聊天室");

JButton jb3=new JButton("刷新在线人员列表");

JPanel jp,jp1,jp3,jp4;

DefaultListModel listmodel = new DefaultListModel();

//static String[] NAME=new String[10];

String n[]={"f"};

JList list=new JList(listmodel);

JLabel time=new JLabel("当前系统时间:");

JLabel showtime=new JLabel("显示时间");

JLabel jl=new JLabel("输聊天信息");

JLabel nicheng=new JLabel("昵称");

JTextField NCshuru=new JTextField(10);

static DataOutputStream dos;

static DataInputStream dis;

//final LoginFrame lf;

Socket socket;

public ConversationFrame()

{

Container con=getContentPane();

con.setLayout(new BorderLayout());

jp=new JPanel();

setSize(700,600);

setLocation(100,100);

jta=new JTextArea();

jta.setEditable(false);

jsp=new JScrollPane(jta);

con.add(jsp,BorderLayout.CENTER);

jtf=new JTextField(20);

jp.add(jl);

jp.add(jtf);

jp.add(enter);

con.add(jp,BorderLayout.SOUTH);

jp1=new JPanel(new BorderLayout());

JScrollPane jsp1=new JScrollPane(list);

jp1.add(jsp1,BorderLayout.CENTER);

jp1.add(jb,BorderLayout.NORTH);

con.add(jp1,BorderLayout.EAST);

//pack();

jp3=new JPanel();

jp3.add(nicheng);

jp3.add(NCshuru);

jp3.add(jb2);

con.add(jp3,BorderLayout.NORTH);

jp4=new JPanel(new GridLayout(10,1));

jp4.add(jb3);

jp4.add(time);

jp4.add(showtime);

new getTime(this).start();

con.add(jp4,BorderLayout.WEST);

setVisible(true);

// 发送信息给所有人

enter.addActionListener(new ActionListener()

{

public void actionPerformed(ActionEvent arg0) {

// TODO Auto-generated method stub

String info=jtf.getText();

try {

dos.writeUTF(NCshuru.getText()+" 对所有人说:"+info);

dos.flush();

} catch (IOException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

}

});

//进入聊天室时将自己的昵称发给服务器，首先去验证是否会与已有的人同名，本聊天室是不支持同昵称聊天

jb2.addActionListener(new ActionListener()

{

public void actionPerformed(ActionEvent e)

{

String msg=NCshuru.getText().toString();//得到昵称

if(msg.length()==0)

{

JOptionPane.showMessageDialog(null, "昵称不应该为空,", "温馨提示", https://www.360docs.net/doc/0a1610167.html,RMA TION_MESSAGE);

}

{

try{

dos.writeUTF("name"+msg);

dos.flush();

}catch(Exception ex)

{

System.out.println(ex.getMessage());

}

}

}

});

//向服务器请求更新在线人员列表

jb3.addActionListener(new ActionListener()

{

public void actionPerformed(ActionEvent e)

{

try {

listmodel.removeAllElements();//请求之前删除JList对象中的所有内容

dos.writeUTF("请求更新在线人员列表");

dos.flush();

} catch (IOException e1) {

// TODO Auto-generated catch block

//e1.printStackTrace();

System.out.println(e1.getMessage());

}

}

});

//当有在线人员时，双击JList列表某项弹出私聊对话框事件，匿名内部类实现的

list.addMouseListener(new MouseAdapter()

{

public void mouseClicked(MouseEvent e)

{

if(e.getClickCount()==2)

{

int index=list.locationToIndex(e.getPoint());// 获得list表中的索引值

String recevier=(String)listmodel.getElementAt(index);//得到索引对应的值

String sender=NCshuru.getText();

new Danliao(sender,recevier,socket);

}

}

});

}

public static void main(String[] args) {

ConversationFrame Con=new ConversationFrame();

Con.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

Con.kaishi();

}

public void kaishi()

{

try {

socket=new Socket("172.16.14.60",8888);

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

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

pc pc1=new pc(socket,this);//传送套接字，本类对象给pc线程

pc1.start();

} catch (UnknownHostException e) {

// TODO Auto-generated catch block

e.printStackTrace();

} catch (IOException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

}

}

// pc线程类，负责接收服务器发送来的信息

class pc extends Thread

{ ConversationFrame conver;

Socket socket;

public pc(Socket socket,ConversationFrame conver)

{

this.conver=conver;

this.socket=socket;

}

public void run()

{

try {

int i=0;

while(true)

{

String line;

//从线路读取信息

line=ConversationFrame.dis.readUTF();

// 将所有的在线人员昵称发送给JList,并添加到在线人列表中

if(line.startsWith("N"))// 服务器发送过来的信息的格式是N+https://www.360docs.net/doc/0a1610167.html,

{

String na=line.substring(1);

try{

conver.listmodel.addElement(na);

System.out.println(na);

}catch(Exception e)

{

System.out.println(e.getMessage());

}

}

//接受服务器发来的广播聊天信息

else

{

ConversationFrame.jta.append(line+"\n");

}

}

} catch (IOException e) {

// TODO Auto-generated catch block

e.printStackTrace();

System.out.println(e.getMessage());

}

}

}

服务器端

package LiaoTianSys;

import java.io.*;

import https://www.360docs.net/doc/0a1610167.html,.*;

import java.util.*;

public class Server implements Runnable{

public static final int port=8888;

protected ServerSocket ss;

static Vector connections;

Thread connect;

public Server()

{

try {

ss=new ServerSocket(port);

connections=new Vector(1000);

connect=new Thread(this);

connect.start();

} catch (IOException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

}

public static void main(String[] args) {

new Server();

}

public void run()

{

try{

while(true)

{

Socket client=ss.accept();

System.out.println("客户端连接上");

firstthread f=new firstthread(this,client);

f.setPriority(Thread.MIN_PRIORITY);

f.start();

connections.addElement(f);

}

}catch(IOException e)

{

System.out.println(e.getMessage());

}

}

//向所有人发送聊天信息

public void SenAll(String msg)

{

int i;

firstthread ft;

for(i=0;i

{

ft=(firstthread)connections.elementAt(i);

try{

ft.out.writeUTF(msg);

}catch(Exception e)

{

System.out.println(e.getMessage());

}

}

}

//发送单聊信息的方法

public void SenOne(String msg)

{

int i;

firstthread ft;

/*String s1,s2,s3;

s1=new String("people");

s2=new String(msg.substring(2));//私信为两个字

s3=s1.conString msg="我悄悄的对小花说你好啊";

cat(s2);*/

int begin=msg.indexOf("对");

int end=msg.indexOf("说");

begin=begin+1;

String strNew=msg.substring(begin,end);

for(i=0;i

ft=(firstthread)connections.elementAt(i);//遍历线程

if(strNew.startsWith(https://www.360docs.net/doc/0a1610167.html,))

{

System.out.println(https://www.360docs.net/doc/0a1610167.html,);

try{

String MSG=msg.substring(7);

ft.out.writeUTF(MSG);

}catch(IOException e)

{

System.out.println(e.getMessage());

}

}

}

}

}

class firstthread extends Thread

{

protected Socket client;

String line,name=null;

DataOutputStream firstout,out;

DataInputStream in;

Server server;

public firstthread(Server server,Socket socket)

{

this.server=server;

this.client=socket;

try

{

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

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

firstout=new DataOutputStream(client.getOutputStream());

}catch(IOException e)

{

server.connections.removeElement(this);

}

}

//客户线程运行的方法，不断监听客户线路发送的来的信息，然后决定转发方式public void run()

{

try

{

while(true)

{

line=in.readUTF();

if(line.startsWith("name"))

{

//获取当前线程

firstthread

d=(firstthread)(server.connections.elementAt(server.connections.indexOf(this)));

line=line.substring(4);

if(https://www.360docs.net/doc/0a1610167.html,==null)

{

https://www.360docs.net/doc/0a1610167.html,=line;

}

}

//将服务器的所有在线人员的昵称发送给所有的客户端

else if(line.startsWith("请求更新在线人员列表"))

{

try

{

for(int i=0;i

{

firstthread c=(firstthread)(server.connections.elementAt(i));

if(https://www.360docs.net/doc/0a1610167.html,!=null)

{

firstout.writeUTF("N"+https://www.360docs.net/doc/0a1610167.html,);//发送昵称

}

}

}catch(Exception e)

{

System.out.println(e.getMessage());

}

}

else if(line.startsWith("private"))

{

server.SenOne(line);

}

//发送聊天信息给所有的pc客户端

else

{

server.SenAll(line);

}

}

}catch(IOException e)

{

System.out.println(e.getMessage());

}

}

}

显示时间

package LiaoTianSys;

import java.text.SimpleDateFormat;

import java.util.Date;

public class getTime extends Thread{

String time;

ConversationFrame conver;

public getTime(ConversationFrame conver)

{

this.conver=conver;

System.out.println("获得系统时间");

}

public void run()

{

while(true)

{

SimpleDateFormat df=new SimpleDateFormat("HH:mm:ss");

time= df.format(new Date());

//System.out.println(time);

conver.showtime.setText(time);

try{

this.sleep(1000);

}catch(Exception e)

{

System.out.println(e.getMessage());

}

}

}

public static void main(String []args)

{

}

}

单聊

package LiaoTianSys;

import java.io.DataOutputStream;

import java.io.IOException;

import https://www.360docs.net/doc/0a1610167.html,.*;

import java.awt.*;

import java.awt.event.*;

import javax.swing.*;

public class Danliao extends JFrame implements ActionListener{ JButton jb=new JButton("发送");

JPanel jp1=new JPanel();

JLabel jl=new JLabel("输入聊天信息");

JTextField jtf=new JTextField(20);

JTextArea jta=new JTextArea();

JScrollPane jsp=new JScrollPane(jta);

String recevier;

String sender;

Socket socket;

public Danliao(String sender,String recevier,Socket socket) { this.recevier=recevier;

this.sender=sender;

this.socket=socket;

setBackground(Color.red);

setTitle("与"+recevier+"单聊");

setSize(400,400);

setLocation(200,200);

Container con=getContentPane();

con.setLayout(new BorderLayout());

con.add(jsp,BorderLayout.CENTER);

jp1.add(jl);

jp1.add(jtf);

jp1.add(jb);

/*addWindowListener(new WindowAdapter()

{

public void windowClosing(WindowEvent e)

{

//System.exit(0);

//this.dispose();

//this.hide();

this.setVisible(false);

}

});*/

addWindowListener(new Close(this));

con.add(jp1,BorderLayout.SOUTH);

jb.addActionListener(this);

setVisible(true);

}

public void actionPerformed(ActionEvent e)

{ String msg=jtf.getText();

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

jtf.setText(null);

try{

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

dos.writeUTF("private"+sender+"悄悄的对"+recevier+"说: "+msg);

jtf.setText(null);

}catch(Exception e1)

{

e1.printStackTrace();

}

}

public static void main(String[] args)

{

}

}

//单击关闭窗口事件，隐藏单聊窗口

class Close extends WindowAdapter

{

Danliao danliao;

public Close(Danliao danliao)

{

this.danliao=danliao;

}

public void windowClosing(WindowEvent e) {

danliao.setVisible(false);

}

}