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();
}
}
}
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;
}
【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();
}
}
