JavaFX FXML显示更新的TableView

Question

我遇到了在TableView中为我的JavaFX / FXML程序添加类的新增问题。我看过无数的教程，但遗失的部分仍然让我失望。

我遇到了一些错误：JavaFX Adding Rows to TableView on Different Page

然后找到了一个新的教程来解释事情比我所关注的第一个更好（他们的应用程序与我必须做的有点不同）：http://code.makery.ch/library/javafx-8-tutorial/part2/

我有一个输出打印名称字段到控制台只是为了确保它从添加表单中提取正确的值。我还改变了我在Add Part和Main窗口之间导航的方式（现在没有其他工作）。我觉得这很愚蠢，但Java是我无法解决的一种语言。

非常感谢任何关于它为什么不更新的想法。

IMS.java

package ims;

import java.io.IOException;
import javafx.application.Application;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.fxml.FXMLLoader;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.layout.AnchorPane;
import javafx.scene.layout.BorderPane;
import javafx.stage.Stage;

/**
 *
 * @author chelseacamper
 */
public class IMS extends Application {
    private Stage primaryStage;
    private BorderPane rootLayout;

    private ObservableList<Part> partData = FXCollections.observableArrayList();

    public IMS() {
        partData.add(new Part("Part A", 3, 4.00, 1, 5));
        partData.add(new Part("Part B", 2, 14.00, 1, 15));
    }

    public ObservableList<Part> getPartData(){
        return partData;
    }

    @Override
    public void start(Stage stage) throws Exception {

//        Parent root = FXMLLoader.load(getClass().getResource("FXMLDocument.fxml"));
        FXMLLoader loader = new FXMLLoader(getClass().getResource("FXMLDocument.fxml"));
        Parent root = (Parent) loader.load();
        FXMLDocumentController ctrl = loader.getController();
        ctrl.setMainApp(this);
        Scene scene = new Scene(root);
        scene.getStylesheets().add("style.css");
        stage.setScene(scene);
        stage.show();

    }

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        launch(args);
    }

}

FXMLDocumentController.java

package ims;

import java.io.IOException;
import java.net.URL;
import java.util.ResourceBundle;
import javafx.collections.ObservableList;
import javafx.event.ActionEvent;
import javafx.fxml.FXML;
import javafx.fxml.FXMLLoader;
import javafx.fxml.Initializable;
import javafx.scene.Node;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.control.Alert;
import javafx.scene.control.Alert.AlertType;
import javafx.scene.control.Label;
import javafx.scene.control.TableColumn;
import javafx.scene.control.TableView;
import javafx.scene.control.cell.PropertyValueFactory;
import javafx.stage.Stage;

/**
 *
 * @author chelseacamper
 */
public class FXMLDocumentController implements Initializable {

    @FXML
    private Label label;
    @FXML
    private TableView<Part> partTable;
    @FXML
    private TableColumn<Part, Integer> partIDColumn;
    @FXML
    private TableColumn<Part, String> nameColumn;
    @FXML
    private TableColumn<Part, Integer> inventoryColumn;
    @FXML
    private TableColumn<Part, Double> priceColumn;

    private IMS mainApp;

    public FXMLDocumentController(){

    }

    @FXML
    private void addPart(ActionEvent event) throws IOException {
        FXMLLoader loader = new FXMLLoader(getClass().getResource("addPart.fxml"));
        Parent add_part_parent = (Parent) loader.load();
        Stage stage = new Stage();
        stage.setScene(new Scene(add_part_parent));
        stage.show();
    }

    @FXML
    private void modifyPart(ActionEvent event) throws IOException {
        Parent modify_part_parent = FXMLLoader.load(getClass().getResource("modifyPart.fxml"));
        Scene modify_part_scene = new Scene(modify_part_parent);
        modify_part_scene.getStylesheets().add("style.css");
        Stage app_stage = (Stage) ((Node) event.getSource()).getScene().getWindow();
        app_stage.setScene(modify_part_scene);
        app_stage.show();
    }

    @FXML
    private void addProduct(ActionEvent event) throws IOException {
        Parent add_product_parent = FXMLLoader.load(getClass().getResource("addProduct.fxml"));
        Scene add_product_scene = new Scene(add_product_parent);
        add_product_scene.getStylesheets().add("style.css");
        Stage app_stage = (Stage) ((Node) event.getSource()).getScene().getWindow();
        app_stage.setScene(add_product_scene);
        app_stage.show();
    }

    @FXML
    private void modifyProduct(ActionEvent event) throws IOException {
        Parent modify_product_parent = FXMLLoader.load(getClass().getResource("modifyProduct.fxml"));
        Scene modify_product_scene = new Scene(modify_product_parent);
        modify_product_scene.getStylesheets().add("style.css");
        Stage app_stage = (Stage) ((Node) event.getSource()).getScene().getWindow();
        app_stage.setScene(modify_product_scene);
        app_stage.show();
    }    

    @FXML
    private void closeProgram(ActionEvent event) throws IOException {
        Stage app_stage = (Stage) ((Node) event.getSource()).getScene().getWindow();
        app_stage.close();
    }

    @Override
    public void initialize(URL url, ResourceBundle rb) {
//        nameColumn.setCellValueFactory(cellData -> cellData.getValue().nameProperty());
//        inventoryColumn.setCellValueFactory(cellData -> cellData.getValue().instockProperty().asObject());
//        priceColumn.setCellValueFactory(cellData -> cellData.getValue().priceProperty().asObject());

        nameColumn.setCellValueFactory(new PropertyValueFactory<>("name"));
        inventoryColumn.setCellValueFactory(new PropertyValueFactory<>("instock"));
        priceColumn.setCellValueFactory(new PropertyValueFactory<>("price"));

    }

    public void setMainApp(IMS mainApp) {
        this.mainApp = mainApp;

        // Add observable list data to the table
        partTable.setItems(mainApp.getPartData());
    }

    @FXML
    private void handleDeletePart(){
        int selectedIndex = partTable.getSelectionModel().getSelectedIndex();
        if (selectedIndex >= 0){
            partTable.getItems().remove(selectedIndex);
        } else {
            Alert alert = new Alert(AlertType.WARNING);
            alert.setTitle("No Part Selected");
            alert.setHeaderText("No Part Selected");
            alert.setContentText("Please select the part you would like to delete.");

            alert.showAndWait();
        }
    }
}

FXMLDocument.fxml

<?xml version="1.0" encoding="UTF-8"?>

<?import java.lang.*?>
<?import java.util.*?>
<?import javafx.scene.*?>
<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?>
<?import javafx.scene.control.cell.*?> 
<?import javafx.collections.*?>
<?import fxmltableview.*?>
<?import ims.Part?> 
<?import ims.Inhouse?> 
<?import ims.Outsourced?> 

<BorderPane id="main" xmlns:fx="http://javafx.com/fxml/1" fx:controller="ims.FXMLDocumentController" >
    <top>
        <Label fx:id="mainTitle" text="Inventory Management System" /> 
    </top>
    <center>
        <HBox fx:id="holding">
            <children>
                <VBox styleClass="contentBox">
                    <children>
                        <HBox styleClass="topBox">
                            <HBox styleClass="subHeading">
                                <Label text="Parts" />
                            </HBox>
                            <HBox styleClass="searchBox">
                                <Button text="Search" />
                                <TextField />
                            </HBox>
                        </HBox>
                        <TableView fx:id="partTable" styleClass="dataTable">
                            <columns>
                                <TableColumn fx:id="partIDColumn" text="Part ID" />
                                <TableColumn fx:id="nameColumn" text="Part Name" />
                                <TableColumn fx:id="inventoryColumn" text="Inventory Level" />
                                <TableColumn fx:id="priceColumn" text="Price/Cost per Unit" />
                            </columns>
                        </TableView>
                        <HBox styleClass="modificationButtons">
                            <children>
                                <Button onAction="#addPart" text="Add" /> 
                                <Button onAction="#modifyPart" text="Modify" /> 
                                <Button text="Delete" /> 
                            </children>
                        </HBox>
                    </children>
                </VBox>
                <VBox styleClass="contentBox">
                    <children>
                        <HBox styleClass="topBox">
                            <HBox styleClass="subHeading">
                                <Label text="Products" />
                            </HBox>
                            <HBox styleClass="searchBox">
                                <Button text="Search" />
                                <TextField />
                            </HBox>
                        </HBox>
                        <TableView fx:id="productTable" styleClass="dataTable">
                            <columns>
                                <TableColumn text="Part ID" />
                                <TableColumn text="Part Name" />
                                <TableColumn text="Inventory Level" />
                                <TableColumn text="Price/Cost per Unit" />
                            </columns>
                        </TableView>
                        <HBox styleClass="modificationButtons">
                            <children>
                                <Button onAction="#addProduct" text="Add" /> 
                                <Button onAction="#modifyProduct" text="Modify" /> 
                                <Button text="Delete" /> 
                            </children>
                        </HBox>
                    </children>
                </VBox>
            </children>
        </HBox>
    </center>
    <bottom>
        <HBox fx:id="exitButton">
            <children>
                <Button onAction="#closeProgram" text="Exit" />
            </children>
        </HBox>
    </bottom>
</BorderPane>

Part.java

package ims;

import javafx.beans.property.DoubleProperty;
import javafx.beans.property.IntegerProperty;
import javafx.beans.property.SimpleDoubleProperty;
import javafx.beans.property.SimpleIntegerProperty;
import javafx.beans.property.SimpleStringProperty;
import javafx.beans.property.StringProperty;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;

/**
 *
 * @author chelseacamper
 */
public class Part {

    private final SimpleStringProperty name;
    private final SimpleIntegerProperty instock;
    private final SimpleDoubleProperty price;
    private final SimpleIntegerProperty min;
    private final SimpleIntegerProperty max;


    public Part(){
        this("", 0, 0.00, 0, 0);

    }

    public Part(String name, int instock, double price, int min, int max) {
        this.name = new SimpleStringProperty(name);
        this.instock = new SimpleIntegerProperty(instock);
        this.price = new SimpleDoubleProperty(price);
        this.min = new SimpleIntegerProperty(min);
        this.max = new SimpleIntegerProperty(max);
    }

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

    public void setName(String name) {
        this.name.set(name);
    }

    public StringProperty nameProperty() {
        return name;
    }

    public Double getPrice() {
        return price.get();
    }

    public void setPrice(Double price) {
        this.price.set(price);
    }

    public DoubleProperty priceProperty(){
        return price;
    }

    public int getInstock() {
        return instock.get();
    }

    public void setInstock(int instock) {
        this.instock.set(instock);
    }

    public IntegerProperty instockProperty(){
        return instock;
    }

    public int getMin() {
        return min.get();
    }

    public void setMin(int min) {
        this.min.set(min);
    }

    public IntegerProperty minProperty(){
        return min;
    }

    public int getMax() {
        return max.get();
    }

    public void setMax(int max) {
        this.max.set(max);
    }

    public IntegerProperty maxProperty(){
        return max;
    }
}

addPartController.java

package ims;

import java.io.IOException;
import java.net.URL;
import java.util.ResourceBundle;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.event.ActionEvent;
import javafx.fxml.FXML;
import javafx.fxml.Initializable;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.control.TableView;
import javafx.scene.control.TextField;
import javafx.scene.control.ToggleButton;
import javafx.stage.Stage;

/**
 * FXML Controller class
 *
 * @author chelseacamper
 */
public class AddPartController implements Initializable {
    @FXML
    ToggleButton inhouse;
    @FXML
    ToggleButton outsourced;
    @FXML
    Label inhouseLabel;
    @FXML
    Label outsourcedLabel;
    @FXML
    TextField inhouseTextField;
    @FXML
    TextField outsourcedTextField;
    @FXML
    private TableView<Part> partTable;
    @FXML
    private TextField partNameField;
    @FXML
    private TextField partInstockField;
    @FXML
    private TextField partPriceField;
    @FXML
    private TextField partMaxField;
    @FXML
    private TextField partMinField;
    @FXML
    private Button cancel;
    @FXML
    private Button save;

    private Part part = new Part();
//    private ObservableList<Part> partData = FXCollections.observableArrayList();
    private ObservableList<Part> tableItems;

    /**
     * Initializes the controller class.
     * @param url
     * @param rb
     */
    @Override
    public void initialize(URL url, ResourceBundle rb) {
        inhouseLabel.visibleProperty().bind( inhouse.selectedProperty() );
        outsourcedLabel.visibleProperty().bind( outsourced.selectedProperty() );
        inhouseTextField.visibleProperty().bind( inhouse.selectedProperty() );
        outsourcedTextField.visibleProperty().bind( outsourced.selectedProperty() );
        inhouseLabel.managedProperty().bind( inhouse.selectedProperty() );
        outsourcedLabel.managedProperty().bind( outsourced.selectedProperty() );
        inhouseTextField.managedProperty().bind( inhouse.selectedProperty() );
        outsourcedTextField.managedProperty().bind( outsourced.selectedProperty() );

    }

    @FXML
    public void addInhouse(ActionEvent event) throws IOException{
//        Part tempPart = new Part(partNameField.getText(),
//                Integer.parseInt(partInstockField.getText()),
//                Double.parseDouble(partPriceField.getText()),
//                Integer.parseInt(partMaxField.getText()),
//                Integer.parseInt(partMinField.getText()));


//        tableItems.add(new Part(partNameField.getText(),
//                Integer.parseInt(partInstockField.getText()),
//                Double.parseDouble(partPriceField.getText()),
//                Integer.parseInt(partMaxField.getText()),
//                Integer.parseInt(partMinField.getText())
//        ));

        part
                .setName(partNameField.getText());
        part.setPrice(Double.parseDouble(partPriceField.getText()));
        part.setInstock(Integer.parseInt(partInstockField.getText()));
        part.setMin(Integer.parseInt(partMinField.getText()));
        part.setMax(Integer.parseInt(partMaxField.getText()));

        System.out.println(partNameField.getText());

        Stage stage = (Stage) cancel.getScene().getWindow();
        stage.close();
    }

    @FXML
    private void close(ActionEvent event) throws IOException {
        Stage stage = (Stage) cancel.getScene().getWindow();
        stage.close();
    }

    void setTableItems(ObservableList<Part> tableItems) {
       this.tableItems = tableItems;
    }

}

addPart.fxml

<?xml version="1.0" encoding="UTF-8"?>

<?import java.lang.*?>
<?import java.net.*?>
<?import java.util.*?>
<?import javafx.scene.*?>
<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?>

<BorderPane id="addPage" xmlns:fx="http://javafx.com/fxml/1" fx:controller="ims.AddPartController">
    <stylesheets>
        <String fx:value="style.css" />
    </stylesheets>
    <fx:define>
        <ToggleGroup fx:id="inOutGroup" />
    </fx:define>
    <center>
        <VBox fx:id="verticalHolding">
            <children>
                <HBox fx:id="topRow">
                    <Label text="Add Part"/>
                    <RadioButton fx:id="inhouse" toggleGroup="$inOutGroup" text="In-House"/>
                    <RadioButton fx:id="outsourced" toggleGroup="$inOutGroup" selected="true" text="Outsourced"/>
                </HBox>
                <HBox styleClass="fullWidth">
                    <HBox styleClass="halfWidthLeft">
                        <Label text="ID" />
                    </HBox>
                    <HBox styleClass="halfWidthRight">
                        <TextField promptText="Auto Gen - Disabled" disable="true" />
                    </HBox>
                </HBox>
                <HBox styleClass="fullWidth">
                    <HBox styleClass="halfWidthLeft">
                        <Label text="Name" />
                    </HBox>
                    <HBox styleClass="halfWidthRight">
                        <TextField fx:id="partNameField" promptText="Part Name" />
                    </HBox>
                </HBox>
                <HBox styleClass="fullWidth">
                    <HBox styleClass="halfWidthLeft">
                        <Label text="Inv" />
                    </HBox>
                    <HBox styleClass="halfWidthRight">
                        <TextField fx:id="partInstockField" promptText="Inv" />
                    </HBox>
                </HBox>
                <HBox styleClass="fullWidth">
                    <HBox styleClass="halfWidthLeft">
                        <Label text="Price/Cost" />
                    </HBox>
                    <HBox styleClass="halfWidthRight">
                        <TextField fx:id="partPriceField" promptText="Price/Cost" />
                    </HBox>
                </HBox>
                <HBox styleClass="fullWidth">
                    <HBox styleClass="halfWidthLeft">
                        <Label text="Max" />
                    </HBox>
                    <HBox styleClass="halfWidthRight">
                        <TextField styleClass="smallTextField" fx:id="partMaxField" promptText="Max" />
                        <Label text="Min" />
                        <TextField styleClass="smallTextField" fx:id="partMinField" promptText="Min" />
                    </HBox>
                </HBox>
                <HBox styleClass="fullWidth">
                    <HBox styleClass="halfWidthLeft">
                        <Label fx:id="inhouseLabel" text="Machine ID" />
                        <Label fx:id="outsourcedLabel" text="Company Name" />
                    </HBox>
                    <HBox styleClass="halfWidthRight">
                        <TextField fx:id="inhouseTextField" promptText="Mach ID" />
                        <TextField fx:id="outsourcedTextField" promptText="Comp Nm" />
                    </HBox>
                </HBox>
                <HBox styleClass="fullWidth">
                    <HBox styleClass="halfWidthLeft">
                    </HBox>
                    <HBox styleClass="halfWidthRight">
                        <Button onAction="#addInhouse" fx:id="save" text="Save" />
                        <Button onAction="#close" fx:id="cancel" text="Cancel" />
                    </HBox>
                </HBox>
            </children>
        </VBox>
    </center>
</BorderPane>