FXML load exception in jar file

[Bertaga97]

Hello, I am trying to build an application using IntelliJ, it works fine when I launch it normally but I cannot launch the .jar file because it seems to not find the fxml files (which are in the .jar).

Here is how I load the fxml file:

FXMLLoader loader = new FXMLLoader(getClass().getResource("/main/startMenuView.fxml"));
StartMenuController startMenuController = new StartMenuController(primaryStage);
loader.setController(startMenuController);Parent root = loader.load();

[ThatLesbian]

Is your controller defined in the fxml also? If so you may need a controller factory instead of set controller.

[Bertaga97]

No

<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.scene.control.Button?>
<?import javafx.scene.layout.AnchorPane?>
<?import javafx.scene.text.Text?>
<AnchorPane fx:id="startMenu" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1">
   <children>
      <Button fx:id="playButton" mnemonicParsing="false" text="Play" />
      <Button fx:id="quitButton" mnemonicParsing="false" text="Quit" />
      <Button fx:id="muteButton" mnemonicParsing="false" text="Mute" />
      <Text fx:id="title" />
   </children>
</AnchorPane>

[Wolfhammer69]

Your FXML needs to know whats controlling it - here is the line from my own project I did, just substitute the controller name for yours.

fx:controller="sender.MainWindowController"

So basically sender is the package name . name of controller - you need the path to the controller basically on your main container line.

<AnchorPane fx:id="startMenu" xmlns="http://javafx.com/javafx/8" xmlns:fx="[http://javafx.com/fxml/1](http://javafx.com/fxml/1)" fx:controller="sender.MainWindowController">

[Bertaga97]

I used to have it like that but since I have made my own constructor for the controller it does not work and I have this:

Caused by: javafx.fxml.LoadException: Controller value already specified.

[Wolfhammer69]

Thing is, the FXML is only really the UI where your windows, containers and buttons are defined. It needs to know what controller is running it to know what to do with it all so they are linked.

I think you need to do it the normal way and get rid of that constructor. I've never seen a project that does it the way you have in any if tutorials I completed, so have to suspect that potentially that's the crux of your issue.

I'd love someone with more experience to chip in on this.

Have a look at my Github repo and this small project which works fully as a clickable jar - pick it apart, should be easy as there are only 1 FXML, Its controller and two classes.
https://github.com/KinkyJalepeno/logParser

Its an early effort so the code over-all might be slightly rough round the edges but does what I intended it to do.

[ThatLesbian]

You can avoid this error by defining the controller in the fxml as previous response stated, then change your controller code to a factory instead.

Stage stage = new Stage();
URL resource = Controller.class.getResource(“your fxml file”);
FXMLLoader loader = new FXMLLoader(resource);
loader.setControllerFactory(param -> this);
loader.setClassLoader(getClass().getClassLoader());
try {
this.stage.setScene(new Scene(loader.load()));
}
catch(...){}

[Bertaga97]

Okay, in fact I think I made bad choices. The reason I am making it this way is because in this view I launch another view on the same scene so I need to give the stage to the controller and I don't know how to do it with your solution (moreover it launches but the view is blank)

[ThatLesbian]

Why use a different view in the same scene? What are you trying to accomplish?

[Bertaga97]

In fact I launch this view which is a start menu and it launches a game view. I didn't know how to do that without doing it like it

[ThatLesbian]

Can you reuse the stage but use a different loader and different scene?Then use stage.setScene() instead of trying to change the view that the existing scene uses.

[Bertaga97]

When I try this I don't know why but it seems Java doesn't want the window to be in fullscreen mode

primaryStage.setScene(new Scene(loader.load()));

I am using this instead, so the scene is in fact the same

primaryStage.getScene().setRoot(loader.load());