将TextField文本设置为TableView列中的数据

import javafx.application.Application;
import javafx.beans.property.SimpleStringProperty;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.scene.Scene;
import javafx.scene.control.*;
import javafx.scene.control.cell.PropertyValueFactory;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;

public class Main extends Application {

    private TableView<Person> tableView;
    private ObservableList<Person> data;

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

    @Override
    public void start(Stage primaryStage) {
        // 创建数据
        data = FXCollections.observableArrayList(
                new Person("John", "Doe"),
                new Person("Jane", "Smith"),
                new Person("Bob", "Johnson")
        );

        // 创建TableView和列
        tableView = new TableView<>();
        TableColumn<Person, String> firstNameCol = new TableColumn<>("First Name");
        TableColumn<Person, String> lastNameCol = new TableColumn<>("Last Name");

        // 设置列的数据源
        firstNameCol.setCellValueFactory(new PropertyValueFactory<>("firstName"));
        lastNameCol.setCellValueFactory(new PropertyValueFactory<>("lastName"));

        // 设置列的CellFactory
        firstNameCol.setCellFactory(column -> {
            return new TableCell<Person, String>() {
                private TextField textField;

                @Override
                protected void updateItem(String item, boolean empty) {
                    super.updateItem(item, empty);

                    if (empty) {
                        setGraphic(null);
                    } else {
                        if (isEditing()) {
                            if (textField != null) {
                                textField.setText(getString());
                            }
                            setGraphic(textField);
                            setContentDisplay(ContentDisplay.GRAPHIC_ONLY);
                        } else {
                            setText(getString());
                            setContentDisplay(ContentDisplay.TEXT_ONLY);
                        }
                    }
                }

                @Override
                public void startEdit() {
                    super.startEdit();

                    if (textField == null) {
                        createTextField();
                    }

                    setText(null);
                    setGraphic(textField);
                    textField.selectAll();
                }

                @Override
                public void cancelEdit() {
                    super.cancelEdit();

                    setText(getString());
                    setContentDisplay(ContentDisplay.TEXT_ONLY);
                }

                @Override
                public void commitEdit(String newValue) {
                    super.commitEdit(newValue);

                    Person person = getTableView().getItems().get(getIndex());
                    person.setFirstName(newValue);
                }

                private void createTextField() {
                    textField = new TextField(getString());
                    textField.setMinWidth(this.getWidth() - this.getGraphicTextGap() * 2);
                    textField.focusedProperty().addListener((observable, oldValue, newValue) -> {
                        if (!newValue) {
                            commitEdit(textField.getText());
                        }
                    });
                }

                private String getString() {
                    return getItem() == null ? "" : getItem();
                }
            };
        });

        // 将列添加到TableView中
        tableView.getColumns().addAll(firstNameCol, lastNameCol);

        // 将数据添加到TableView中
        tableView.setItems(data);

        // 创建一个垂直布局，并将TableView添加到其中
        VBox vbox = new VBox(tableView);

        // 创建一个场景，并将布局添加到场景中
        Scene scene = new Scene(vbox);

        // 设置舞台的场景，并显示舞台
        primaryStage.setScene(scene);
        primaryStage.show();
    }

    public static class Person {
        private final SimpleStringProperty firstName;
        private final SimpleStringProperty lastName;

        public Person(String firstName, String lastName) {
            this.firstName = new SimpleStringProperty(firstName);
            this.lastName = new SimpleStringProperty(lastName);
        }

        public String getFirstName() {
            return firstName.get();
        }

        public void setFirstName(String firstName) {
            this.firstName.set(firstName);
        }

        public String getLastName() {
            return lastName.get();
        }

        public void setLastName(String lastName) {
            this.lastName.set(lastName);
        }
    }
}