如何在这段代码中显示数据库的日期？

SELECT CURDATE();

SELECT SYSDATE FROM DUAL;

SELECT GETDATE();

import java.sql.*;
import java.util.Date;

public class Main {
    public static void main(String[] args) {
        try {
            Connection conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/mydb", "username", "password");
            Statement stmt = conn.createStatement();
            ResultSet rs = stmt.executeQuery("SELECT CURDATE() AS currentDate");
            
            if (rs.next()) {
                Date currentDate = rs.getDate("currentDate");
                System.out.println("Current date: " + currentDate);
            }
            
            rs.close();
            stmt.close();
            conn.close();
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}

$.ajax({
    url: '/get-current-date',
    type: 'GET',
    success: function(response) {
        $('#date').text(response.currentDate);
    },
    error: function(xhr, status, error) {
        console.error(error);
    }
});

app.get('/get-current-date', function(req, res) {
    var currentDate = new Date().toDateString();
    res.json({ currentDate: currentDate });
});