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import java.io.*;
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import java.net.*;
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;//引入包。
public class ChatClient {
public static void main(String[] args) {
ChatClient cc = new ChatClient();
cc.receive();
}
JTextField jtf; // 文本条
JTextArea jta; //文本域。
Socket s; //客户端
PrintWriter out; //输出流
BufferedReader in; //输入流
public ChatClient() {
JFrame frame = new JFrame("ChatClient");//窗口
frame.setSize(400, 300); //大小
jta = new JTextArea(); //文本域
jta.setEditable(false); //不可编辑
jtf = new JTextField();//文件条
jtf.addActionListener(new ActionListener() { //添加监听。
public void actionPerformed(ActionEvent arg0) {
send(); //调用send（）方法
}
});
frame.getContentPane().add(new JScrollPane(jta)); //添加滚动条
frame.getContentPane().add(jtf, "South"); //添加文本条
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); //关闭窗口。
frame.setVisible(true); //可显示的。
try {
s = new Socket("127.0.0.1", 9000); //连接服务端 socket("主机名"，端口号);
in = new BufferedReader(new InputStreamReader(s.getInputStream())); //建立输入流
out = new PrintWriter(s.getOutputStream());//输出流
} catch (UnknownHostException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public void receive() { //接受服务端发来别的客户端的信息。
while (true) {
try {
String text = in.readLine(); //读一行
this.jta.append(text + "\n"); //jta 添加上读入的。
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
return;
}
}
}
public void send() { //发送消息
String text = this.jtf.getText(); //得到你输入的消息
this.jtf.setText(""); //在文本域中显示你输入的消息。
out.println(text); //打印出。
out.flush(); //清空
}
}
Server端
import java.net.*;
import java.io.*;
import java.util.*;//引入包
public class ChatServer {
public static void main(String[] args) throws Exception {
ServerSocket ss = new ServerSocket(9000); //建立服务端，端口号为9000
List list = new ArrayList(); //创建个List集合。
while (true) {
Socket s = ss.accept(); //等待客户端的请求。
list.add(s); //把每一个client都add到集合中去。
Thread t = new ServerThread(s, list); //线程。
t.start(); //启动。
}
}
}
class ServerThread extends Thread {
Socket s;
List list;
BufferedReader in;
PrintWriter out;
public ServerThread(Socket s, List list) { //构造。传入socket和list。
this.s = s;
this.list = list;
try {
in = new BufferedReader(new InputStreamReader(s.getInputStream())); //输入流
out = new PrintWriter(s.getOutputStream()); //输出流
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public void run() { //必须实现其run（）方法。
while (true) {
try {
String str = in.readLine(); //得到client端的message。
if (str == null) //如果没有消息就返回。
return;
Iterator it = list.iterator(); //遍历list。
while (it.hasNext()) { //如果list有下一个
Socket socket = (Socket) (it.next()); //因为list中都是存的socket
PrintWriter o = new PrintWriter(socket.getOutputStream()); //输出流
o.println(str); //输出
o.flush(); //清空
}
} catch (IOException e) {
// TODO Auto-generated catch block
// e.printStackTrace();
return;
}
}
}
}
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");
}
}
}
}
两个类，实现交互
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;
public class MutiChat
{
public static void main(String[] args)
{
MutiChat mc = new MutiChat();
mc.receive().start();
mc.send().start();
}
/**
* 接收信息
*
* @return
*/
private Thread receive()
{
return new Thread()
{
public void run()
{
ServerSocket server_socket = null;
Socket sk = null;
BufferedReader in = null;
try
{
server_socket = new ServerSocket(7777);
sk = server_socket.accept();
in = new BufferedReader(new InputStreamReader(sk
.getInputStream()));
while (true)
{
String str = in.readLine();
System.out.println(str);
}
} catch (Exception e)
{
e.printStackTrace();
}
}
};
}
private Thread send()
{
return new Thread()
{
public void run()
{
Socket client_socket = null;
BufferedReader in = null;
PrintWriter out = null;
while (true)
{
try
{
client_socket = new Socket("127.0.0.1", 8888);
in = new BufferedReader(
new InputStreamReader(System.in));
out = new PrintWriter(new BufferedWriter(
new OutputStreamWriter(client_socket
.getOutputStream())), true);
while (true)
{
String str = in.readLine();
out.println(str);
}
} catch (Exception e)
{
try
{
Thread.sleep(1000);
} catch (Exception ex)
{
ex.printStackTrace();
}
}
}
}
};
}
}
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;
public class MutiChat2
{
public static void main(String[] args)
{
MutiChat2 mc = new MutiChat2();
mc.receive().start();
mc.send().start();
}
/**
* 接收信息
*
* @return
*/
private Thread receive()
{
return new Thread()
{
public void run()
{
ServerSocket server_socket = null;
Socket sk = null;
BufferedReader in = null;
try
{
server_socket = new ServerSocket(8888);
sk = server_socket.accept();
in = new BufferedReader(new InputStreamReader(sk
.getInputStream()));
while (true)
{
String str = in.readLine();
System.out.println(str);
}
} catch (Exception e)
{
e.printStackTrace();
}
}
};
}
private Thread send()
{
return new Thread()
{
public void run()
{
Socket client_socket = null;
BufferedReader in = null;
PrintWriter out = null;
while (true)
{
try
{
client_socket = new Socket("127.0.0.1", 7777);
in = new BufferedReader(
new InputStreamReader(System.in));
out = new PrintWriter(new BufferedWriter(
new OutputStreamWriter(client_socket
.getOutputStream())), true);
while (true)
{
String str = in.readLine();
out.println(str);
}
} catch (Exception e)
{
try
{
Thread.sleep(1000);
} catch (Exception ex)
{
ex.printStackTrace();
}
}
}
}
};
}
}
文件1：
package com.qq;
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;
public 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();
}
}
}
----------------------------------------
文件2：
package com.qq;
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;
public 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();
}
}
}
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
服务端 用户名 y 密码 1 客户端代码在我的评论里，这敲不了那么多字，没办法。
登陆实现类：class Login
package com.server;
import java.awt.Color;
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPasswordField;
import javax.swing.JTextField;
public class Login {
boolean f=false;//按登录时设置的一个标志
private JFrame frame = new JFrame("Welcome To MLDN") ;
//设置窗体
private JButton submit = new JButton("登陆");//设置登录按钮
private JButton reset = new JButton("重置");//设置重置按钮
private JLabel nameLab = new JLabel("服务器：") ;//标签实例化
private JLabel passLab = new JLabel("密 码："); //标签实例化
private JLabel infoLab = new JLabel("服务器登陆系统"); //标签实例化
private JTextField nameText = new JTextField(10);//单行文本输入条
private JPasswordField passText = new JPasswordField() ;//单行密码文本输入条
public Login(){//登录窗口构造方法
Font fnt = new Font("Serief",Font.ITALIC + Font.BOLD,12); //设置字体
infoLab.setFont(fnt) ; // 设置标签的显示文字
submit.addActionListener(new ActionListener(){ //采用内部匿名类
public void actionPerformed(ActionEvent e){
if(e.getSource()==submit){ //判断触发器源是否是提交按钮
String tname = nameText.getText() ; //得到输入的用户名
String tpass = new String(passText.getPassword()) ;//得到输入的密码,此时通过getPassageword()方法返回的是字符数组
LoginCheck log = new LoginCheck(tname,tpass) ;//实例化LoginCheck对象,传入输入的用户名和密码
if(log.validate()){//对用户名和密码进行验证
try{ //线程异常处理try
Thread.sleep(2000); //2秒后打开聊天窗口
f=true; //登录成功后的表示项为true
frame.dispose(); //关闭本窗口
}catch(Exception e1){//异常获取
e1.printStackTrace();
}
}else{
infoLab.setText("登陆失败，错误的用户名或密码！") ;//登录失败
}
}
}
});
reset.addActionListener(new ActionListener(){ //采用内部匿名类
public void actionPerformed(ActionEvent e){
if(e.getSource()==reset){ //判断触发器源是否是提交按钮
nameText.setText(""); //设置文本框中的内容
passText.setText(""); //设置文本框中的内容
infoLab.setText("服务器登陆系统"); //恢复标签显示
}
}
});
frame.addWindowListener(new WindowAdapter(){//加入窗口监听
public void windowClosing(WindowEvent e){ }
}); // 加入事件
frame.setLayout(null); //使用绝对定位
nameLab.setBounds(5,5,60,20); //设置标签的位置及大小
passLab.setBounds(5,30,60,20); //设置标签的位置及大小
infoLab.setBounds(5,65,220,30); //设置标签的位置及大小
nameText.setBounds(65,5,100,20); //设置文本域的位置及大小
passText.setBounds(65,30,100,20); //设置密码域的位置及大小
submit.setBounds(165,5,60,20); //设置按钮的位置及大小
reset.setBounds(165,30,60,20); //设置按钮的位置及大小
frame.add(nameLab); //向窗体加入标签
frame.add(passLab); //向窗体加入标签
frame.add(infoLab); //向窗体加入标签
frame.add(nameText); //向窗体加入文本框
frame.add(passText); //向窗体加入密码框
frame.add(submit); //向窗体加入按钮
frame.add(reset) ;//向窗体加入按钮
frame.setSize(280,130); //设置窗体大小
frame.getContentPane().setBackground(Color.green) ;//设置窗体的背景颜色
frame.setLocation(300,200) ;//设置窗体在电脑桌面上的位置
frame.setVisible(true); //显示窗口
while(f==false){ //当登录失败时,一直循环运行,
}
new MyServer();//显示窗体页面
}
}
验证登陆实现类 class LoginCheck
package com.server;
public class LoginCheck {
private String name ;//用户名
private String password ;//密码
//构造方法
public LoginCheck(String name,String password){
this.name = name ;//传递用户名
this.password = password ;//传递密码
}
//验证用户名和密码
public boolean validate(){
//验证方法
if("y".equals(name)"1".equals(password)){ //判断用户名和密码是否正确
return true; //返回true
}else{
return false ;//返回false
}
}
}
package com.server;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;
import java.text.DateFormat;
import java.util.Date;
import javax.swing.*;
聊天实现类 class MyServer
public class MyServer {
protected JLabel lab10;
// 全体变量,做传递的一个组件
String s = "已经成功连接";
// 初始字符串,在两个聊天窗口链接成功时输出,同时作为两个窗口传递字符的一个变量
// 构造方法
public MyServer(){
try{//异常处理
JFrame frame=new JFrame("服务器窗口");
//设置窗体
frame.setLayout(null);
//让布局管理器为空,使用绝对定位
Font fnt=new Font("Serief",Font.PLAIN,40);//字体设置
Font fnt1=new Font("Serief",Font.PLAIN,20);//字体设置
//我的用户名显示
JLabel lab1=new JLabel("服务器名:",JLabel.LEFT);
//标签实例化,文本左对齐
lab1.setBounds(8, 10, 100, 20);
//设置组件位置及大小
frame.add(lab1);
//添加组件
JTextField text2=new JTextField(30); //单行文本输入组件
text2.setBounds(150, 10, 200, 20);//设置组件位置及大小
text2.setEnabled(false);//文本条不可编辑
text2.setText("笑笑聊天室");//输入内容
text2.setFont(fnt1);//设置字体
frame.add(text2);//添加组件
//服务器IP显示
JLabel lab2=new JLabel("当前服务器IP:",JLabel.LEFT);
//标签实例化,文本左对齐
lab2.setBounds(8, 45, 100, 20);//设置组件位置及大小
frame.add(lab2);//添加组件
JTextField text3=new JTextField(30);//单行文本输入组件
text3.setBounds(150, 45, 200, 20);//设置组件位置及大小
text3.setEnabled(false);
//文本不可编辑
text3.setText("127.0.0.1");//输入内容
text3.setFont(fnt1);//设置字体
frame.add(text3);
//添加组件
//服务器端口显示
JLabel lab3=new JLabel("当前服务器端口:",JLabel.LEFT);
//标签实例化,文本左对齐
lab3.setBounds(8, 80, 100, 20);//设置组件位置及大小
frame.add(lab3);//添加组件
JTextField text4=new JTextField(30);//单行文本输入组件
text4.setBounds(150, 80, 200, 20);//设置组件位置及大小
text4.setEnabled(false);//文本不可编辑
text4.setText("8888");//输入内容
text4.setFont(fnt1);//设置字体
frame.add(text4);//添加组件
//聊天记录显示
JLabel lab4=new JLabel("聊天记录如下:",JLabel.LEFT);
//标签实例化 文本左对齐
lab4.setBounds(8, 115, 100, 20);//设置组件位置及大小
frame.add(lab4);//添加组件
final JTextArea text1=new JTextArea();//多行文本输入组件
text1.setEnabled(false);//文本不可编辑
text1.setLineWrap(true);//自动换行
JScrollPane scr=new JScrollPane(text1,JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS); //设置滚动条,水平和垂直滚动条始终显示
scr.setBounds(8, 150, 450, 350);//设置组件位置及大小
frame.add(scr);//添加组件
//聊天输入窗口及确定
JLabel lab5=new JLabel("请输入聊天内容:",JLabel.LEFT); //标签实例化,文本左对齐
lab5.setBounds(8, 500, 100, 20);//设置组件位置及大小
frame.add(lab5);//添加组件
final JTextArea text5=new JTextArea();//多行文本输入组件
text5.setLineWrap(true);//自动换行
JScrollPane scr2=new JScrollPane(text5,JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);//设置滚动条,水平和垂直滚动条始终显示
scr2.setBounds(150, 500, 300, 50);//设置组件位置及大小
frame.add(scr2);//添加组件
final JButton but=new JButton("确定");//设置确定按钮
but.setFont(fnt);//添加字体设置
but.setBounds(480, 500, 200, 50);//设置组件位置及大小
but.addActionListener(
new ActionListener(){ //采用内部匿名类
public void actionPerformed(ActionEvent e){
if(e.getSource()==but){ //判断触发器源是否是提交按钮
text1.append("笑笑: "+lab10.getText()+"\n ");//在聊天记录上添加文本
text1.append(text5.getText()+"\n"); //将输入的聊天内容输出在聊天记录上
s=text5.getText(); //得到聊天内容
text5.setText(""); // 将聊天窗口内容设置为空
}
}
});
frame.add(but);//添加组件
//当前时间显示
JLabel lab7=new JLabel("时间显示:",JLabel.LEFT);//标签实例化,文本左对齐
lab7.setBounds(450, 20, 100, 20);//设置组件位置及大小
frame.add(lab7);//添加组件
DateFormat df=DateFormat.getDateTimeInstance();//取得系统时间
String df2= df.format(new Date()); //将时间转换成字符串
JLabel lab8=new JLabel(df2,JLabel.LEFT);//标签实例化,文本左对齐
lab8.setBounds(520, 20, 130, 20);//设置组件位置及大小
frame.add(lab8);//添加组件
lab10=lab8; //传递时间显示,以便能在聊天记录上显示记录时间
new Time(lab8); //使时间动态显示
//用户列表显示
JLabel lab6=new JLabel("用户列表:",JLabel.LEFT);//标签实例化,文本左对齐
lab6.setBounds(500, 40, 100, 20);//设置组件位置及大小
frame.add(lab6);//添加组件
JTextArea text6=new JTextArea();//标签实例化,文本左对齐
text6.setEnabled(false);//文本不可编辑
text6.setLineWrap(true);//自动换行
JScrollPane scr3=new JScrollPane(text6,JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);//设置滚动条,水平和垂直滚动条始终显示
scr3.setBounds(460, 70, 220, 420);//设置组件位置及大小
frame.add(scr3);//添加组件
//窗口的属性
frame.setSize(700,600);//窗口大小
frame.getContentPane().setBackground(Color.pink);//窗口的背景颜色
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);//关闭窗口时关闭程序
frame.setLocation(100,50);//在电脑桌面上出现的位置
frame.setVisible(true);//显示窗口
//连个窗口连接
//建立Server Socket并等待连接请求
ServerSocket server =new ServerSocket(8889);
Socket socket=server.accept();
//连接建立，通过Socket获取连接上的输入/输出流
BufferedReader in=new BufferedReader(new InputStreamReader(socket.getInputStream()));
final PrintWriter out =new PrintWriter(socket.getOutputStream());
//先读取Client发送的数据，然后从标准输入读取数据发送给Client当接收到bye时关闭连接
String s1="",s2="";
//标志字符串,作为传递字符串使用
//得到其他窗口传递的字符串,并判断是否结束
while(!(s1=in.readLine()).equals("bye")){
text6.setText("可可在线"); //当连接成功是在用户列表中 输出用户名字
if(!s1.equals("")){ //如果传递的字符串不为 空
text1.append("可可: "+lab10.getText()+"\n ");//在聊天记录上添加文本
text1.append(s1+"\n"); //将输入的聊天内容输出在聊天记录上
}
s2=s;//将在聊天窗口中得到的字符串传递给输出字符串
for(;s2.equals("")||s2.equals(null);s2=s){//当传递的字符串为空时等待用户输入聊天内容
}
s="";//将在聊天窗口中得到的字符串设为空
if(!s2.equals("")!s2.equals(null)){// s2不为空时做
out.println(s2); //向其他窗口输出字符串
}
out.flush();//输出聊天内容
}
//关闭连接
in.close();
out.close();
socket.close();
server.close();
}catch(Exception e){
}
}
//main函数
public static void main(String args[]){
new Login();//登录实现 } }
}
}
时间类 class Time
package com.server;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.text.SimpleDateFormat;
import java.util.Date;
import javax.swing.JLabel;
import javax.swing.Timer; //时间类
public class Time {
public Time(JLabel time){
//构造方法 this.setTimer(time);
//设置时间
}
public void setTimer(JLabel time){
//设置时间方法
final JLabel varTime = time;
//传递组件
Timer timeAction = new Timer(1000, new ActionListener() {
//时间监听
public void actionPerformed(ActionEvent e) {
long timemillis = System.currentTimeMillis();//得到系统时间
SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");//转换日期显示格式
varTime.setText(df.format(new Date(timemillis)));//输出得到的时间
}
});
timeAction.start(); //开启线程
}
}