覆盖子Spring Controller中的@RequestMapping

Question

We use Spring 3.2 for our projects with a parent and child (maven) projects (child project extends the parent project).

We have an issue to override the @RequestMapping in the child project to redefine specifically the state of an URL. For example :

@Controller
public class MyParentProjectController {

    @RequestMapping(value = "/pdfRender")
    public ModelAndView pdfRender(MyParentProjectCommand command, HttpServletRequest request,
            HttpServletResponse response, Application application)
        {
            // ...
        }
    }
}

And in the child project with a dependency on the parent project :

@Controller
public class MyChildProjectController {

    @RequestMapping(value = "/pdfRender")
    public ModelAndView pdfRender(MyChildProjectCommand command, HttpServletRequest request,
            HttpServletResponse response, Application application)
        {
            // ...
        }
    }
}

Spring tells me it's impossible because there are two identical entry points in the child project. It's not possible to redefine a RequestMapping . I do not find a solution to do that without going through twisted stuff. If you have a brilliant solution for me without use @RequestMapping(value="${...}") .

Best regards

Answer 1

I'd make the parent an abstract class and leave that method unimplemented to override it.

If you want to have it that way, this workaround may help you; check out the SpringMVC router project on GitHub .

It's an implementation of Play's Routes file for SpringMVC.