自己写的一个支持200人在线的聊天室服务器(简化版)-------主程序文件:chatServer

专业版尚未开始(04-12-17)
三峡大学内的同学可以到http://ftp.ctgu.edu.cn/soft/down.php?act=up&id=2800下载
/*
 * date: 2004-11-29 author：zhangyu6050;
 * email:   dazuibazhangyu@eyou.com
 *           ctgu  (china three groges university)
 * todo: 服务器主程序
 * bugs:
 */
import util.DateUtil;
import java.net.*;
import java.awt.*;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.io.*;

import javax.swing.*;
import java.applet.*;
import java.util.*;
public class ChatServer {
    private int port = 1775;      //端口号
    private ServerSocket serverS; //服务器套节字
    public static Broadcast broad;//通讯专用类,单态模式设计
    private JTextArea display;
 
    /**
  *初始化
  */
 public ChatServer() {
  setupGui();
  runServer();
    }
 public void runServer(){
  try {
   serverS=new ServerSocket(port);
  } catch (IOException e2) {
   
    showMSg("在指定端口无法监听"+e2.getMessage());
  }
  
  try {
   broad= Broadcast.getInstence();//做好准备
            while(true)
            {
             showMSg("等待接入......");
                Socket socket = serverS.accept();
                //记录登录时间
                String s = DateUtil.format(Calendar.getInstance(),DateUtil.ymdhms)+"/r";
                showMSg("接入时间:"+s);
                //实例化一个代理
                Angent angent = new Angent(socket);
                //实例化一个服务线程
                ServerThread serverthread = new ServerThread(angent);
                serverthread.start();
                serverS.close();
            }
        }
        catch(IOException e)
        {
             showMSg(e.getMessage()+"服务器异常在要关闭"); 
   
        }
    }
    public void closeServer(){
     System.out.print("服务器正在关闭!");
     try {
   serverS.close();
  } catch (IOException e) {
   System.err.println(e.getMessage()+"/n服务器无法关闭");
   e.printStackTrace();
  }
    }
 //set up a Frame and return it
   private  JFrame   setupGui(){
     //setup a Frame and set title
     JFrame jf=new JFrame();
     port=Integer.parseInt(JOptionPane.showInputDialog("input port please:"));
     jf.setTitle("server");
     //get the pane of the Frame
     Container pane=jf.getContentPane();
     //set up modules
      display=new JTextArea();//显示区
     JLabel sendLable=new JLabel("enter msg");
     JTextField sysBroadcast=new JTextField(20);//系统广播发送
     JPanel sendPane=new  JPanel();
     sendPane.add(sendLable);sendPane.add(sysBroadcast);
     pane.add(sendPane, BorderLayout.NORTH);
     pane.add("Center",new JScrollPane(display));
        jf.setSize(400,300);
        jf.setVisible(true);
        jf.addWindowListener(new
             WindowAdapter()
             {
                public void windowClosing(WindowEvent e)
                {
                   System.exit(0);
                }
             });

     return jf;
    }
   
   void showMSg(String s){
    display.append(s+"/n");
   }
  
   public static void main(String args[]){
         
       new ChatServer();
    }
}