Using Spring beans inside a Rest @Controller

after migrating from spring 3 to 5 i can't do this anymore in a rest controller:

@Lazy@Controller@RequestMapping("/Portability4CtRestService")public class Portability4CtRestService extends AbstractP4CtRestService {    private P4CtAccountRoutingService accountRoutingService;    /**     * @param accountRoutingService the accountRoutingService to set     */    @Autowired    public void setAccountRoutingService(P4CtAccountRoutingService p4ctAccountRoutingService) {        this.accountRoutingService = p4ctAccountRoutingService;    }    @RequestMapping(value = "/searchAccountRouting", method = RequestMethod.POST, consumes = { "application/json" }, produces = { "application/json" })    public @ResponseBody    String searchAccountRouting(HttpServletRequest request) {            //do something with accountRoutingService....    }}

the objet autowired with @Autowired annotation is always null, the same happens if i use

@Autowiredprivate P4CtAccountRoutingService accountRoutingService;or @Resourcesprivate P4CtAccountRoutingService accountRoutingService;

A possible workaround is to make something like this in the costructor:

public Portability4CtRestService() {        setAccountRoutingService((P4CtAccountRoutingService) it.vtfinance.vtpie.core.configuration.spring.ContextSupport.getContext().getBean(P4CtAccountRoutingService.BEAN_NAME));    }

But i wondering if this is the right way and why i can't use anymore spring annotation to call a spring bean.