chatlogframe.java

java学生成绩管理系统.....初学者欢迎下载

/**
 * ChatLogFrame.java
 * Date 10:26 2006-4-2
 */
 package com.herb.teacherclient; 
 import java.awt.*;
 import java.awt.event.*;
 import javax.swing.*; 
 import java.util.*;

 public class ChatLogFrame extends JFrame{
    JLabel namelabel=new JLabel("选择登陆到那个专业讨论区:");
    static JComboBox list=new JComboBox();
    JPanel boxPanel=new JPanel();
    JPanel textPanel=new JPanel();
    JPanel btnPanel=new JPanel();
    JButton okBtn=new JButton("登陆",new ImageIcon("com/herb/teacherclient/icons/ok.gif"));
    JButton noBtn=new JButton("取消",new ImageIcon("com/herb/teacherclient/icons/dis.gif"));
    static JTextField field;
    JPanel fieldPanel=new JPanel();
    private static final String CODE6="006";   // 获得某专业学生名
    private static final String CODE7="007";   // 从服务器获得专业名


    public ChatLogFrame(){
       super("登陆设置");
       ClientPart ct=new ClientPart(CODE7);
       Thread th=new Thread(ct);
       th.start(); 
       boxPanel.add(list);
       field=new JTextField(10);
       list.setPreferredSize(new Dimension(200,20));
 
       list.addItemListener(new ItemListener(){
           public void itemStateChanged(ItemEvent e){
              String chatTo=(String)list.getSelectedItem();
              field.setText(chatTo);
           }
       });
       textPanel.add(namelabel);
       btnPanel.add(okBtn);
       okBtn.addActionListener(new ActionListener(){ 
           public void actionPerformed(ActionEvent e){
              if(field.getText().equals(""))
                  warn();
              else{
                 dispose();
                 ChatFrame chatframe=new ChatFrame();
               try{
                 Thread.sleep(20);
               }catch(InterruptedException ex){
                   System.out.println("thread wrong!"+ex.getMessage());
               } 
                 ClientPart chat=new ClientPart(CODE6,field.getText());
                 Thread th=new Thread(chat);
                 th.start();
                 
                 LocationSet.setFrameLocation(chatframe);
              }
            }
       }); 
       btnPanel.add(noBtn);
       noBtn.addActionListener(new ActionListener(){ 
           public void actionPerformed(ActionEvent e){
               dispose();
           }
       });
       fieldPanel.add(new JLabel("登陆到:"));
       fieldPanel.add(field);
       JPanel panel=new JPanel();
       panel.setLayout(new GridLayout(0,1));
       panel.add(textPanel);
       panel.add(boxPanel);
       panel.add(fieldPanel);
       panel.add(btnPanel);

       getContentPane().setLayout(new BorderLayout(5,5));
       getContentPane().add("Center",panel);
       LocationSet.setFrameLocation(this);
       pack();
       show(); 
       setResizable(false);
       addWindowListener(new WindowAdapter(){
         public void windowClosing(WindowEvent e){  
              dispose();
         }
       });
    }

   //初始化list
   public static void initBox(Vector v){
       if((list.getItemCount())!=0)
          list.removeAllItems();
       for(int i=0;i<v.size();i++)
          list.addItem(v.elementAt(i));
   }    
 
   public void warn(){
       new MsgDialog(this,"不能为空!");
   }

 }