如何在TableView中打印数据库中的数据？

import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.control.TableColumn;
import javafx.scene.control.TableView;
import javafx.scene.control.cell.PropertyValueFactory;
import javafx.stage.Stage;

import java.sql.*;

public class DatabaseTableViewExample extends Application {

    private static final String DB_URL = "jdbc:mysql://localhost:3306/mydatabase";
    private static final String DB_USER = "username";
    private static final String DB_PASSWORD = "password";

    public static void main(String[] args) {
        launch(args);
    }

    @Override
    public void start(Stage primaryStage) {
        TableView<DataRow> tableView = new TableView<>();

        // 创建数据库连接
        try (Connection connection = DriverManager.getConnection(DB_URL, DB_USER, DB_PASSWORD)) {
            // 执行查询语句
            String query = "SELECT * FROM mytable";
            Statement statement = connection.createStatement();
            ResultSet resultSet = statement.executeQuery(query);

            // 创建TableView的列
            ResultSetMetaData metaData = resultSet.getMetaData();
            int columnCount = metaData.getColumnCount();
            for (int i = 1; i <= columnCount; i++) {
                TableColumn<DataRow, Object> column = new TableColumn<>(metaData.getColumnName(i));
                column.setCellValueFactory(new PropertyValueFactory<>(metaData.getColumnName(i)));
                tableView.getColumns().add(column);
            }

            // 将查询结果填充到TableView中
            while (resultSet.next()) {
                DataRow row = new DataRow();
                for (int i = 1; i <= columnCount; i++) {
                    row.setValue(metaData.getColumnName(i), resultSet.getObject(i));
                }
                tableView.getItems().add(row);
            }
        } catch (SQLException e) {
            e.printStackTrace();
        }

        Scene scene = new Scene(tableView);
        primaryStage.setScene(scene);
        primaryStage.show();
    }

    // 自定义数据结构，用于存储查询结果
    public static class DataRow {
        private final javafx.beans.property.SimpleObjectProperty<Object>[] values;

        public DataRow() {
            values = new javafx.beans.property.SimpleObjectProperty[getColumnCount()];
        }

        public void setValue(String columnName, Object value) {
            int index = getColumnIndex(columnName);
            if (index >= 0) {
                if (values[index] == null) {
                    values[index] = new javafx.beans.property.SimpleObjectProperty<>(value);
                } else {
                    values[index].set(value);
                }
            }
        }

        public Object getValue(String columnName) {
            int index = getColumnIndex(columnName);
            if (index >= 0) {
                return values[index].get();
            }
            return null;
        }

        private int getColumnCount() {
            // 返回查询结果的字段数量
            return 3;
        }

        private int getColumnIndex(String columnName) {
            // 根据字段名称返回对应的索引
            if (columnName.equals("column1")) {
                return 0;
            } else if (columnName.equals("column2")) {
                return 1;
            } else if (columnName.equals("column3")) {
                return 2;
            }
            return -1;
        }
    }
}