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JavaFX applications have predefined lifecycle hooks (init(), start(), and stop()) for managing application initialization and lifecycle events. However, injecting Spring dependencies (such as JPA repositories) directly into these methods may not work. This is because JavaFX isolates its lifecycle methods from the Spring application context.
Option 1: Use a Spring Boot Application
Consider converting your JavaFX application to a Spring Boot application. This provides full integration with the Spring framework, including dependency injection, JPA repositories, and other Spring facilities.
Option 2: Manual Dependency Injection
1. Integration via JavaFXMLLoader
Use the setControllerFactory method on FXMLLoader to allow Spring to instantiate FXML controllers and inject Spring dependencies:
<code class="java">fxmlLoader.setControllerFactory(springContext::getBean);</code>
Annotate your JavaFX controllers with @Component and @Autowired Spring annotations to receive dependencies:
<code class="java">@Component @Scope("prototype") public class DemoController { @FXML private Label usernameLabel; @Autowired public SpringService mySpringService; ... }</code>
2. Injecting into JavaFX Application Class
If you want to inject Spring beans into the JavaFX application class:
<code class="java">springContext .getAutowireCapableBeanFactory() .autowireBeanProperties( this, AutowireCapableBeanFactory.AUTOWIRE_BY_TYPE, true );</code>
To maintain separation of concerns, it's recommended to separate the Spring Boot application from the JavaFX application. Run the Spring Boot application to initialize the Spring context and pass it to the JavaFX application.
Use the getParameters().getRaw().toArray(new String[0]) method to pass arguments from JavaFX to Spring Boot.
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