Java – extending annotated controllers in spring MVC

I'm developing a small project and have some existing code. I want to keep clearing my changes, so I need to extend an annotated controller, but it doesn't work:

package a;

@controller
public class BaseController {
    // Autowired fields

    protected x toExtend() {
         // do stuff
    }

    @RequestMapping(value = "/start")
    protected ModelAndView setupForm(...) {
        toExtend();
        // more stuff
    }
}



package b;

@controller
public class NewController extends BaseController {
    // Autowired fields

    @Override
    protected x toExtend() {
         super.toExtend();
         //new stuff
    }
}

Scan package a and B scan controller, I can't change it I really don't want this job because @ requestmapping (value = "/ start") is redundant in both controllers So I got an exception

So my question is, can I actually extend such an annotation driven controller without changing the basecontroller?

Solution

You can extend a spring controller with another spring controller

When the spring MVC controller extends another controller, the function of the sub controller can be directly used by the sub controller using the request URL of the sub controller You can get more details here