JavaFXのGUIウィンドウが表示されない

Question

このアプリケーションはまだ完全には機能していませんが、EclipseでJavaFXを使用して作成しました。問題は、私がプレイを押すと、何も表示されないということです。 GUIウィンドウなし。私はScene Builderを使ってそれを構築しました。私が実行すると、エラーは表示されません。ここに私のコードです：

Main.Java

package application; 

import javafx.application.Application; 
import javafx.collections.FXCollections; 
import javafx.collections.ObservableList; 
import javafx.fxml.FXMLLoader; 
import javafx.stage.Stage; 
import javafx.scene.Scene; 
import javafx.scene.layout.AnchorPane; 


public class Main extends Application { 
    private Stage primaryStage; 
    @Override 
    public void start(Stage primaryStage) { 
     this.primaryStage = primaryStage; 
     mainWindow(); 
    } 

    public void mainWindow() { 
     try{ 
      FXMLLoader loader = new FXMLLoader(Main.class.getResource("MainWindowView.fxml")); 
      AnchorPane pane = loader.load(); 
      Scene scene = new Scene(pane); 

      MainWindowController controller = loader.getController(); 
      controller.setMain(this); 

      primaryStage.setScene(scene); 
      primaryStage.setResizable(false); 
      primaryStage.show(); 

     }catch(Exception e){ 
      e.printStackTrace(); 
     } 
    } 

    private ObservableList<Person> personData = FXCollections.observableArrayList(); 
    public ObservableList<Person> getPersonData() { return personData; } 

    public Main(){ 
     personData.add(new Person("Dr", "Frankenstein", "1234345", "London", "666666")); 
     personData.add(new Person("Steve", "Jobs", "112233", "Silicon Valley", "12345")); 
    } 

    public static void main(String[] args){ 

    } 
} 

MainWindowController.java

package application; 

import javafx.fxml.FXML; 
import javafx.scene.control.TableColumn; 
import javafx.scene.control.TableView; 
import javafx.scene.control.cell.PropertyValueFactory; 

public class MainWindowController { 

    @FXML TableView<Person> tableView; 
    @FXML TableColumn<Person, String> firstNameColumn; 
    @FXML TableColumn<Person, String> lastNameColumn; 

    private Main main; 

    public void initialize(){ 
     firstNameColumn.setCellValueFactory(new PropertyValueFactory<Person, String>("FirstName")); 
     lastNameColumn.setCellValueFactory(new PropertyValueFactory<Person, String>("LastName")); 
    } 

    public void setMain(Main main){ 
     this.main = main; 
     tableView.setItems(main.getPersonData()); 
    } 

    @FXML 
    public void handleNew(){ 

    } 

    @FXML 
    public void handleEdit(){ 

    } 

    @FXML 
    public void handleDelete(){ 

    } 

} 

MainWindowView.fxml

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

<?import javafx.scene.text.*?> 
<?import javafx.scene.control.*?> 
<?import java.lang.*?> 
<?import javafx.scene.layout.*?> 
<?import javafx.scene.layout.AnchorPane?> 


<AnchorPane prefHeight="500.0" prefWidth="800.0" xmlns:fx="http://javafx.com/fxml/1" xmlns="http://javafx.com/javafx/8" fx:controller="application.MainWindowController"> 
    <children> 
     <TableView fx:id="tabelView" layoutX="14.0" layoutY="14.0" prefHeight="200.0" prefWidth="350.0" AnchorPane.bottomAnchor="25.0" AnchorPane.leftAnchor="20.0" AnchorPane.topAnchor="25.0"> 
     <columns> 
      <TableColumn fx:id="firstNameColomn" prefWidth="75.0" text="First Name" /> 
      <TableColumn fx:id="lastNameColumn" prefWidth="75.0" text="Last Name" /> 
     </columns> 
     <columnResizePolicy> 
      <TableView fx:constant="CONSTRAINED_RESIZE_POLICY" /> 
     </columnResizePolicy> 
     </TableView> 
     <GridPane layoutX="418.0" layoutY="61.0"> 
     <columnConstraints> 
      <ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="100.0" /> 
      <ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="100.0" /> 
     </columnConstraints> 
     <rowConstraints> 
      <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" /> 
      <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" /> 
      <RowConstraints minHeight="10.0" prefHeight="45.0" vgrow="SOMETIMES" /> 
      <RowConstraints minHeight="10.0" prefHeight="45.0" vgrow="SOMETIMES" /> 
      <RowConstraints minHeight="10.0" prefHeight="45.0" vgrow="SOMETIMES" /> 
      <RowConstraints minHeight="10.0" prefHeight="45.0" vgrow="SOMETIMES" /> 
      <RowConstraints minHeight="10.0" prefHeight="45.0" vgrow="SOMETIMES" /> 
     </rowConstraints> 
     <children> 
      <Label text="Last Name" GridPane.rowIndex="3" /> 
      <Label text="Details"> 
       <font> 
        <Font name="System Bold" size="18.0" /> 
       </font> 
      </Label> 
      <Label text="First Name" GridPane.rowIndex="2" /> 
      <Label text="Phone" GridPane.rowIndex="4" /> 
      <Label text="City" GridPane.rowIndex="5" /> 
      <Label text="Postcode" GridPane.rowIndex="6" /> 
      <Label fx:id="firstNameLabel" GridPane.columnIndex="1" GridPane.rowIndex="2" /> 
      <Label fx:id="lastNameLabel" GridPane.columnIndex="1" GridPane.rowIndex="3" /> 
      <Label fx:id="phoneLabel" GridPane.columnIndex="1" GridPane.rowIndex="4" /> 
      <Label fx:id="cityLabel" GridPane.columnIndex="1" GridPane.rowIndex="5" /> 
      <Label fx:id="postcodeLabel" GridPane.columnIndex="1" GridPane.rowIndex="6" /> 
     </children> 
     </GridPane> 
     <HBox layoutX="418.0" layoutY="418.0" spacing="20.0"> 
     <children> 
      <Button layoutX="418.0" layoutY="418.0" mnemonicParsing="false" text="New" /> 
      <Button layoutX="518.0" layoutY="418.0" mnemonicParsing="false" text="Edit" /> 
      <Button layoutX="618.0" layoutY="418.0" mnemonicParsing="false" text="Delete" /> 
     </children> 
     </HBox> 
    </children> 
</AnchorPane> 

Answer 1

あなたmain方法が見つからないlaunch()への呼び出し：

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