ArrayList显示数据库中的所有结果

import java.sql.*;
import java.util.ArrayList;

public class DatabaseExample {
    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";

        // 查询语句
        String query = "SELECT * FROM mytable";

        // 创建ArrayList对象
        ArrayList<String> resultList = new ArrayList<>();

        // 连接数据库并执行查询
        try (Connection connection = DriverManager.getConnection(url, username, password);
             Statement statement = connection.createStatement();
             ResultSet resultSet = statement.executeQuery(query)) {

            // 遍历结果集并将数据添加到ArrayList中
            while (resultSet.next()) {
                String data = resultSet.getString("column_name");
                resultList.add(data);
            }
        } catch (SQLException e) {
            e.printStackTrace();
        }

        // 打印ArrayList中的数据
        for (String data : resultList) {
            System.out.println(data);
        }
    }
}