inputnametextfield.java

用java开发的网络聊天室

/*
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 * and open the template in the editor.
 */

package client;

/**
 *
 * @author Administrator
 */
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!=null&&name!=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");
           }
       }
  }
}