Spring Boot and Java Fx - spring-boot

Question

To start my application, I'm avoiding the "implements CommandLineRunner" process to do the setup but I am facing a problem in this line
fxmlLoader.setControllerFactory(springContext::getBean);
where fxmlLoader is an instance of FxmlLoader and springContext ia an instance of ConfigurableApplicationContext. I am facing this error,
"The method setControllerFactory(Callback<Class<?>,Object>) in the
type FXMLLoader is not applicable for the arguments
(springContext::getBean)".
Can anyone help me with the exact syntax? My imported package reports an error as
"The type org.springframework.beans.factory.annotation.Autowire
cannot be resolved. It is indirectly referenced from required .class
files" .

Answer 1

ok, ive understood that this would require a little code, but ive found already built project with a solution similar to what ive proposed - heres example https://github.com/ruslanys/sample-spring-boot-javafx
you just to tie javafx to spring with context.getAutowireCapableBeanFactory().autowireBean(this);
in AbstractJavaFxApplicationSupport.java file
code will look like this
public abstract class AbstractJavaFxApplicationSupport extends Application {
private static String[] savedArgs;
protected ConfigurableApplicationContext context;
#Override
public void init() throws Exception {
context = SpringApplication.run(getClass(), savedArgs);
context.getAutowireCapableBeanFactory().autowireBean(this);
}
#Override
public void stop() throws Exception {
super.stop();
context.close();
}
protected static void launchApp(Class<? extends AbstractJavaFxApplicationSupport> appClass, String[] args) {
AbstractJavaFxApplicationSupport.savedArgs = args;
Application.launch(appClass, args);
}
}
and tie all you view like bean
#Configuration
public class ControllersConfiguration {
#Bean(name = "mainView")
public ViewHolder getMainView() throws IOException {
return loadView("fxml/main.fxml");
}
#Bean
public MainController getMainController() throws IOException {
return (MainController) getMainView().getController();
}
protected ViewHolder loadView(String url) throws IOException {
InputStream fxmlStream = null;
try {
fxmlStream = getClass().getClassLoader().getResourceAsStream(url);
FXMLLoader loader = new FXMLLoader();
loader.load(fxmlStream);
return new ViewHolder(loader.getRoot(), loader.getController());
} finally {
if (fxmlStream != null) {
fxmlStream.close();
}
}
}
public class ViewHolder {
private Parent view;
private Object controller;
public ViewHolder(Parent view, Object controller) {
this.view = view;
this.controller = controller;
}
public Parent getView() {
return view;
}
public void setView(Parent view) {
this.view = view;
}
public Object getController() {
return controller;
}
public void setController(Object controller) {
this.controller = controller;
}
}
}
then in controller you may enjoy spring magic and javafx magic together
public class MainController {
#Autowired private ContactService contactService;
#FXML private TableView<Contact> table;
#FXML private TextField txtName;
#FXML private TextField txtPhone;
#FXML private TextField txtEmail;}
and just start your app like this
#SpringBootApplication
public class Application extends AbstractJavaFxApplicationSupport {
#Value("${ui.title:JavaFX приложение}")//
private String windowTitle;
#Qualifier("mainView")
#Autowired
private ControllersConfiguration.ViewHolder view;
#Override
public void start(Stage stage) throws Exception {
stage.setTitle(windowTitle);
stage.setScene(new Scene(view.getView()));
stage.setResizable(true);
stage.centerOnScreen();
stage.show();
}
public static void main(String[] args) {
launchApp(Application.class, args);
}}