开发工具:
文件大小: 6kb
下载次数: 0
上传时间: 2010-06-28
详细说明： 用java写GUI图形界面 public class login extends JFrame { private JComboBox nameJComboBox; private JPanel userJPanel; private JLabel pictureJLabel; private JButton okJButton,cancelJButton; private JLabel nameJLabel,passwordJLabel,note; private JPasswordField passwordJPasswordField; private String name1; private String password1; private String user; private ImageIcon myImageIcon; public login( ) { createUserInterface( ); // 调用创建用户界面方法 } private void createUserInterface() { Container contentPane = getContentPane(); contentPane.setLayout( null ); userJPanel = new JPanel(); userJPanel.setBounds( 35, 120, 300, 96 ); userJPanel.setBorder(BorderFactory.createEtchedBorder() ); //显示一圈边儿 userJPanel.setLayout( null ); contentPane.add( userJPanel ); nameJComboBox = new JComboBox(); nameJComboBox.setBounds( 100, 12, 170, 25 ); nameJComboBox.addItem( "admin" ); nameJComboBox.addItem( "aloie" ); nameJComboBox.setSelectedIndex( 0 ); nameJComboBox.setEditable(true); userJPanel.add( nameJComboBox ); pictureJLabel=new JLabel(); pictureJLabel.setBounds(45,0,380,118); pictureJLabel.setIcon(new ImageIcon("pic.gif")); contentPane.add(pictureJLabel); nameJLabel=new JLabel("姓 名："); nameJLabel.setBounds(20,12,80,25); userJPanel.add(nameJLabel); passwordJPasswordField=new JPasswordField(); passwordJPasswordField.setBounds(100,60,170,25); userJPanel.add(passwordJPasswordField); passwordJLabel=new JLabel("密 码："); passwordJLabel.setBounds(20,60,80,25); userJPanel.add(passwordJLabel); note=new JLabel("密码与用户名相同"); note.setBounds(0,295,180,25); add(note); okJButton=new JButton("登 陆"); okJButton.setBounds(60,250,80,25); contentPane.add(okJButton); okJButton.addActionListener( new ActionListener() { public void actionPerformed(ActionEvent event) { okJButtonActionPerformed(event); } } ); cancelJButton=new JButton("取 消"); cancelJButton.setBounds(210,250,80,25); contentPane.add(cancelJButton); cancelJButton.addActionListener( new ActionListener() { public void actionPerformed( ActionEvent event ) { System.exit(0); //退出登陆 } } ); setTitle( "登陆窗口" ); setSize( 380, 350 ); setResizable( false ); //将最大化按钮设置为不可用 } private void okJButtonActionPerformed( ActionEvent event ) { //okJButton响应事件,检查用户名和密码的匹配 name1= nameJComboBox.getSelectedItem().toString(); if (name1.equals("admin") ) { if (passwordJPasswordField.getText().equals("admin")) { showNewWindow(); setVisible( false); } else { JOptionPane.showMessageDialog( this,"密码错误，拒绝登陆", "密码错误 ！", JOptionPane.ERROR_MESSAGE ); } } else if (name1.equals("aloie")) { if ( passwordJPasswordField.getText().equals("aloie") ) { showNewWindow(); setVisible(false); } else { JOptionPane.showMessageDialog( this,"密码错误，拒绝登陆", "密码错误 ！", JOptionPane.ERROR_MESSAGE ); } } } public void showNewWindow() { JFrame jf=new JFrame("main Frame"); jf.setSize(500,400); jf.setVisible(true); jf.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE ); } public static void main( String[] args ) { JFrame.setDefaultLookAndFeelDecorated(true); login mylogin = new login( ); mylogin.setVisible( true ); mylogin.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE ); } } ...展开收缩
(系统自动生成,下载前可以参看下载内容)
下载文件列表
相关说明
- 本站资源为会员上传分享交流与学习,如有侵犯您的权益,请联系我们删除.
- 本站是交换下载平台，提供交流渠道，下载内容来自于网络，除下载问题外，其它问题请自行百度。
- 本站已设置防盗链，请勿用迅雷、QQ旋风等多线程下载软件下载资源，下载后用WinRAR最新版进行解压.
- 如果您发现内容无法下载，请稍后再次尝试；或者到消费记录里找到下载记录反馈给我们.
- 下载后发现下载的内容跟说明不相乎，请到消费记录里找到下载记录反馈给我们，经确认后退回积分.
- 如下载前有疑问，可以通过点击"提供者"的名字，查看对方的联系方式，联系对方咨询.
