package simplechatserver;import java.net.*;import javax.swing.*;import javax.swing.text.*;import java.util.*;/** * Title:        網絡聊天程序的服務器端 * Description: * Copyright:    Copyright (c) 2001 * Company: * @author * @version 1.0 */public class servThread extends Thread {  private  int servPort;  private ServerSocket servSocket;  private JComboBox clientList;  private JTextComponent outText;  private Vector clients=new Vector();  private boolean running=true;  public servThread(int port) {     servPort=port;     try{          servSocket=new ServerSocket(port);     }catch(Exception e){     }  }  public void setClientList(JComboBox cboComponent){     clientList=cboComponent;  }  public void setOutTextComponent(JTextComponent component){     outText=component;  }  public void run(){     try{         int count=0;         while(running){             Socket newSocket=servSocket.accept();             count++;             String name="Client"+count;             ChatSocket chat=new ChatSocket(name,newSocket);             chat.setOutTextComponent(outText);             chat.setParent(this);             chat.connect();             clientList.addItem(name);             clients.add(chat);            synchronized(this){                 outText.setText(outText.getText()+"接受客戶端"+name+"的請求\n");            }         }     }catch(Exception e){         System.out.println(e);     }  }  public boolean send(String msg,String clientName){     try{         Enumeration temp=clients.elements();         ChatSocket chat=null;         while(temp.hasMoreElements() ){             chat=(ChatSocket)temp.nextElement();             if(chat.getName().equals(clientName))                  break;         }         if(chat==null) {            temp=null;            return false;         }else{            return(chat.send(msg));         }     }catch(Exception e){         return false;     }  }  public synchronized void removeChat(ChatSocket chat){     try{         clientList.removeItem(chat.getName());        if(clients.contains(chat)) clients.remove(chat);        synchronized(this){                 outText.setText(outText.getText()+"關閉客戶端"+chat.getName()+"\n");         }         chat=null;     }catch(Exception e){         System.out.println(e);     }  }  public void stopServer(){     try{           Enumeration temp=clients.elements();           ChatSocket chat=null;          while(temp.hasMoreElements() ){               chat=(ChatSocket)temp.nextElement();               chat.close();               chat=null;          }          running=false;     }catch(Exception e){     }  }}