public class Login extends javax.swing.JFrame implements ActionListener{
private static final long serialVersionUID = 1L;
private JLabel jLabel1;
private JLabel jLabel2;
private JPasswordField txtpassword;
private JButton btnCanel;
private JButton btnOK;
private JTextField txtuser;
public Login() {
super();
initGUI();
}
//初始化界面
private void initGUI() {
try {
setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
getContentPane().setLayout(null);
{
jLabel1 = new JLabel();
getContentPane().add(jLabel1);
jLabel1.setText("\u7528\u6237\u540d:");
jLabel1.setBounds(79, 106, 42, 15);
}
{
jLabel2 = new JLabel();
getContentPane().add(jLabel2);
jLabel2.setText("\u5bc6 \u7801:");
jLabel2.setBounds(79, 140, 42, 15);
}
{
txtuser = new JTextField();
getContentPane().add(txtuser);
txtuser.setBounds(144, 103, 153, 22);
}
{
txtpassword = new JPasswordField();
getContentPane().add(txtpassword);
txtpassword.setBounds(144, 137, 153, 22);
}
{
btnOK = new JButton();
getContentPane().add(btnOK);
btnOK.setText("\u8fdb\u5165");
btnOK.setBounds(103, 178, 60, 22);
btnOK.addActionListener(this);
}
{
btnCanel = new JButton();
getContentPane().add(btnCanel);
btnCanel.setText("\u9000\u51fa");
btnCanel.setBounds(202, 178, 60, 22);
}
pack();
this.setSize(400, 300);
} catch (Exception e) {
e.printStackTrace();
}
}
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
Login inst = new Login();
inst.setLocationRelativeTo(null);
inst.setVisible(true);
}
});
}
public void actionPerformed(ActionEvent e) {
if(e.getSource().equals(btnOK)){
// System.out.println("d2");
User user = new User();
user.setUsername(txtuser.getText());
char ps[] = txtpassword.getPassword();
String psd = new String(ps);
user.setPassword(psd);
UserDAO userdao = new UserDAO();
String flag = userdao.queryAllEmp(user);
if(flag.equals("YES")) {
System.out.println("登录成功");
}else{
JOptionPane.showMessageDialog(this, "用户名或密码不正确!!!");
txtpassword.setText("");
}
}else if(e.getSource().equals(btnCanel)) {
System.exit(0);
}
}
}
请教下用鼠标触发退出程序事件，错在哪里？还是别的错了
------解决方案--------------------