Java – inject @ controller into another spring bean

In a spring MVC project, I want to inject a @ controller into a different bean, as shown below:

@Controller
public class MyController {
  ..
}

@Component
public class SomeSpringBean {
  @Resource
  private MyController myController;

  ..
}

This doesn't seem to work, although the @ controller annotation is a specialization of @ component, such as @ service (indeed valid):

org.springframework.beans.factory.NoSuchBeanDeFinitionException: No qualifying bean of type [com..Mycontroller] is defined

I also try to get beans directly from ApplicationContext

I want to avoid discussing why I want to inject the controller. I'd rather create an additional level of abstraction and inject it:)

Solution

I'll assume that your somespringbean class is a component of the root context scan loaded by the contextloaderlistener

I'll assume that your @ controller annotation class is scanned by the servlet context loaded by the dispatcher servlet

In this case, the root context does not have access to beans in the servlet context Only the reverse is true

You need to place the somespringbean class in some other package that must be scanned by the servlet context

If my assumption is wrong, please add your context configuration

This is not a good idea@ The controller bean means that it is managed by the handlermapping stack of the dispatcher servlet I can't think of anything you want from @ controller bean