『壹』 用java編寫用戶注冊界面，包含：用戶名、密碼、密碼確認、郵箱，以及注冊和清空兩個按鈕。求高手，感謝!
界面建議用可視化來做，美觀且便捷。下面這個是完全用代碼寫的，僅供參考。
import javax.swing.*;
import java.awt.event.*;
import java.awt.*;
import java.sql.*;
public class Register extends JFrame {
JLabel jl1 = new JLabel("用戶名");
JTextField jt1 = new JTextField();
JLabel jl2 = new JLabel("郵箱");
JTextField jt2 = new JTextField();
JLabel jl3 = new JLabel("密碼");
JPasswordField jpw1 = new JPasswordField();
JLabel jl4 = new JLabel("密碼確認");
JPasswordField jpw2 = new JPasswordField();
JButton register = new JButton("注冊");
JButton clean = new JButton("清空");
public Register(){
setLayout(new GridLayout(5,2));
add(jl1);
add(jt1);
add(jl2);
add(jt2);
add(jl3);
add(jpw1);
add(jl4);
add(jpw2);
add(register);
add(clean);
String name = jt1.getText();
String email = jt2.getText();
String pw = jpw1.getText();
register.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
try{
Class.forName("com.mysql.jdbc.Driver");
Connection con = DriverManager.getConnection("jdbc:mysql://localhost/db","root","");
Statement sta = con.createStatement();
sta.executeUpdate("INSERT INTO register VALUES(name,email,pw)");
JOptionPane.showMessageDialog(null,"注冊成功","提示",JOptionPane.INFORMATION_MESSAGE);
}
catch(Exception ex){
ex.getStackTrace();
}
}
});
clean.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
jt1.setText("");
jt2.setText("");
jpw1.setText("");
jpw2.setText("");
}
});
}
public static void main(String[] args){
Register frame = new Register();
frame.setTitle("用戶注冊");
frame.setLocationRelativeTo(null);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(400,400);
frame.setVisible(true);
}
}