How to inject JpaRepository to not service class

Question

I have interface like this

@Repository
public interface CarRepository extends JpaRepository<Car, Long> {
}

In class adnotated @RestController Spring is able to wired with proper field.

But how can I do this if I want to create class without any adnotation in spring? I have to create implementation of this repository? If yes, can I do it like spring is?

Possible duplicate of [How to inject dependencies into a self-instantiated object in Spring?](https://stackoverflow.com/questions/3813588/how-to-inject-dependencies-into-a-self-instantiated-object-in-spring) — Lesiak, Apr 20 '19 at 13:18

Alex B · Answer 1 · 2019-04-20T20:03:05.373

Inject

private final ConfigurableApplicationContext configurableApplicationContext;

into the class instantiating your desired class. Then call:

YourClass yourClass = (YourClass) configurableApplicationContext.getBeanFactory().initializeBean(new YourClass(), "YourClassName");

yourClass will then hold an instance of YourClass which has been initialized as if it was a Spring @Component (or a @RestController, which is the same from the dependency-injection point of view).

score -1 · Answer 2 · answered Apr 20 '19 at 20:59

@SpringBootApplication
public class MainApplication  extends SpringBootServletInitializer implements ApplicationContextAware {

    private static ApplicationContext appContext;

    public static void main(String[] args) {
        SpringApplication.run(CrawlerApplication.class, args);
    }

    @Override
    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
        this.appContext = applicationContext;
    }

....

MainApplication.getAppContext().getBean(CarRepository.class)

Code-only answers are of low quality. Please try to add an explanation. — S.S. Anne, Apr 20 '19 at 21:07

How to inject JpaRepository to not service class

2 Answers2