如何在更改时显示数据库中的信息

import java.sql.*;

public class DisplayDatabaseInfo {
    public static void main(String[] args) {
        // 数据库连接信息
        String url = "jdbc:mysql://localhost:3306/mydatabase";
        String username = "root";
        String password = "password";

        // 建立数据库连接
        try (Connection conn = DriverManager.getConnection(url, username, password)) {
            // 创建查询语句
            String sql = "SELECT * FROM users";

            // 执行查询
            try (Statement stmt = conn.createStatement();
                 ResultSet rs = stmt.executeQuery(sql)) {
                // 遍历查询结果并显示
                while (rs.next()) {
                    int id = rs.getInt("id");
                    String name = rs.getString("name");
                    String email = rs.getString("email");
                    System.out.println("ID: " + id + ", Name: " + name + ", Email: " + email);
                }
            }
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}