import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class Test_Login extends javax.swing.JFrame
{
    private JPanel jPanel1, jPanel2;
    private JButton bntLogin;
    private JButton bntCannel;
    private JPasswordField pwd;
    private JTextField username;
    private JTextField computerid;
    private JLabel jLabel2;
    private JLabel jLabel3;
    private JLabel jLabel1;

    public Test_Login()
    {
        super();
        initGUI();
    }

    private void initGUI()
    {
        try
        {
            setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
            {

                getContentPane().setLayout(null);
                jPanel1 = new JPanel();
                jPanel2 = new JPanel();
                getContentPane().add(jPanel1, BorderLayout.CENTER);
                
                jPanel1.setBounds(0, 0, 300, 150);
                jPanel2.setBounds(0, 150, 300, 80);
                jPanel2.setBackground(new java.awt.Color(102, 255, 204));

                jPanel1.setLayout(null);
                jLabel1 = new JLabel();
                jLabel1.setText("用户名");
                jLabel1.setBounds(45, 30, 75, 25);
                jLabel2 = new JLabel();
                jLabel2.setText("密码");
                jLabel2.setBounds(45, 75, 55, 15);
                username = new JTextField();
                username.setBounds(100, 30, 140, 25);
                pwd = new JPasswordField();
                pwd.setBounds(100, 70, 140, 25);

                jPanel1.add(jLabel1);
                jPanel1.add(jLabel2);
                jPanel1.add(username);
                jPanel1.add(pwd);

                // jPanel2.setLayout(new FlowLayout());//new FlowLayout
                //jPanel2.setLayout(null);// new FlowLayout
                bntLogin = new JButton();
                bntLogin.setText("登陆");
                //bntLogin.setBounds(0, 220, 60, 30);
                bntCannel = new JButton();
                bntCannel.setText("取消");
                //bntCannel.setBounds(250, 220, 60, 30);
                jPanel2.add(bntLogin);
                jPanel2.add(bntCannel);
                getContentPane().add(jPanel2, BorderLayout.SOUTH);
                // jPanel2.add(bntLogin);
                // jPanel2.add(bntCannel);
                pack();
                setSize(300, 230);

                bntLogin.addMouseListener(new MouseAdapter()
                {

                    public void mouseClicked(MouseEvent e)
                    {
                        if (username.getText().equals("lisong")
                                && pwd.getText().equals("lisong"))
                        {
                            JOptionPane.showMessageDialog(Test_Login.this,
                                    "登录成功");
                        } else
                        {
                            JOptionPane.showMessageDialog(Test_Login.this,
                                    "登录失败");
                        }

                    }
                });

                bntCannel.addMouseListener(new MouseAdapter()
                {
                    public void mouseClicked(MouseEvent e)
                    {

                        System.exit(0);
                    }
                });
            }
        } catch (Exception e)
        {
            e.printStackTrace();
        }
    }

    public static void main(String[] args)
    {
        Test_Login inst = new Test_Login();
        inst.setLocationRelativeTo(null);
        // inst.setResizable (false); //设置窗口不可放大缩小
        inst.setVisible(true);

    }
}