使用eclipse的WindowBuilder插件的可视化方式拖拉组件快速生成登陆界面
安装好WindowBuilder插件之后，在eclipse里面使用快捷键ctrl+N ==> new JFrame：
给面板设置需要的布局，然后通过拖拉组件画出登陆界面：
然后再修改一下代码，编写登陆按钮和重置按钮的方法：
public class LoginFrame extends JFrame {
private JPanel contentPane;
private JTextField userNameTf;
private JPasswordField passwordField;
/**
* Launch the application.
*/
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
LoginFrame frame = new LoginFrame();
frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
/**
* Create the frame.
*/
public LoginFrame() {
setResizable(false);
setTitle("登陆界面");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.setSize(600,400);
this.setLocationRelativeTo(null);
// setBounds(100, 100, 600, 400);
contentPane = new JPanel();
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
setContentPane(contentPane);
contentPane.setLayout(null);
JLabel userNameLbl = new JLabel("用户名：");
userNameLbl.setFont(new Font("微软雅黑", Font.PLAIN, 20));
userNameLbl.setBounds(100, 70, 93, 40);
contentPane.add(userNameLbl);
userNameTf = new JTextField();
userNameTf.setBounds(239, 75, 239, 30);
contentPane.add(userNameTf);
userNameTf.setColumns(10);
JLabel passwordLbl = new JLabel("密码：");
passwordLbl.setFont(new Font("微软雅黑", Font.PLAIN, 20));
passwordLbl.setBounds(100, 137, 93, 40);
contentPane.add(passwordLbl);
passwordField = new JPasswordField();
passwordField.setBounds(239, 142, 239, 30);
contentPane.add(passwordField);
JButton loginBtn = new JButton("登陆");
loginBtn.setFont(new Font("微软雅黑", Font.PLAIN, 20));
loginBtn.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
login();
}
});
loginBtn.setBounds(132, 238, 113, 40);
contentPane.add(loginBtn);
JButton resetBtn = new JButton("重置");
resetBtn.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
reset();
}
});
resetBtn.setFont(new Font("微软雅黑", Font.PLAIN, 20));
resetBtn.setBounds(331, 238, 113, 40);
contentPane.add(resetBtn);
}
//登陆
public void login() {
if(userNameTf.getText().equals("admin")&&String.valueOf(passwordField.getPassword()).equals("123456")) {
JOptionPane.showMessageDialog(null, "登陆成功");
}else {
JOptionPane.showMessageDialog(null, "登陆失败");
}
}
//重置
public void reset() {
userNameTf.setText("");
passwordField.setText("");
}
}
即可快速生成简单的登陆界面。