如何在Javafx中为TableView添加可扩展列？

import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.TableCell;
import javafx.scene.control.TableColumn;
import javafx.scene.control.TableView;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;

public class TableViewExample extends Application {

    @Override
    public void start(Stage primaryStage) {
        TableView<Person> tableView = new TableView<>();
        TableColumn<Person, String> nameColumn = new TableColumn<>("Name");
        nameColumn.setCellValueFactory(cellData -> cellData.getValue().nameProperty());

        TableColumn<Person, Void> expandColumn = new TableColumn<>("Expand");
        expandColumn.setCellFactory(column -> {
            TableCell<Person, Void> cell = new TableCell<>() {
                private final Button expandButton = new Button("Expand");

                {
                    expandButton.setOnAction(event -> {
                        // 处理按钮点击事件
                        Person person = getTableView().getItems().get(getIndex());
                        System.out.println("Expand button clicked for: " + person.getName());
                    });
                }

                @Override
                protected void updateItem(Void item, boolean empty) {
                    super.updateItem(item, empty);
                    if (empty) {
                        setGraphic(null);
                    } else {
                        setGraphic(expandButton);
                    }
                }
            };
            return cell;
        });

        tableView.getColumns().addAll(nameColumn, expandColumn);

        // 添加示例数据
        tableView.getItems().addAll(
                new Person("John"),
                new Person("Jane"),
                new Person("Bob")
        );

        VBox root = new VBox(tableView);
        Scene scene = new Scene(root, 400, 300);
        primaryStage.setScene(scene);
        primaryStage.show();
    }

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

    public static class Person {
        private final String name;

        public Person(String name) {
            this.name = name;
        }

        public String getName() {
            return name;
        }
    }
}