Springboot multimodule project

Question

I'm trying to get a clean springboot maven multimodule project. I'm using springboot 2.0.1.RELEASE

What I want to achieve is similar to this: SpringBootMultipleMavenModules

The problem I have is that I want to be able to inject my dependencies in any modules.

For example in this class: DBSeeder.java looks as follow:

private HotelRepository hotelRepository;

public DbSeeder(HotelRepository hotelRepository){
    this.hotelRepository = hotelRepository;
}
..

I would like to use instead:

@Autowired
private HotelRepository hotelRepository;

The Application class look as follow:

@SpringBootApplication
@EnableJpaRepositories(basePackages = {"rc"})
@EntityScan(basePackages = {"rc"})
@ComponentScan(basePackages = {"rc"})
public class DemoApplication {
    public static void main(String[] args) {
        SpringApplication.run(DemoApplication.class, args);
    }
}

Any idea that could link me to the solution would be welcome.

Answer 1

Looking at your code, you cannot Autowire a Hotel bean, because it's not registered properly.

https://github.com/IDCS1426/SpringBootMultipleMavenModules/blob/master/domain/src/main/java/rc/domain/Hotel.java#L10

You need to add @Component there to be able to inject it in https://github.com/IDCS1426/SpringBootMultipleMavenModules/blob/master/persistence/src/main/java/rc/persistence/DbSeeder.java#L21

Also, the project will never compile, as you're adding a non-existing module: https://github.com/IDCS1426/SpringBootMultipleMavenModules/blob/master/pom.xml#L14. You need to remove that :).

Having said all of that, it's very weird to me the way you're trying to inject an Entity like that, but that's not part of this question.

By doing that, the code compiles just fine.