Spring mvc having different methods for same mapping

I am trying to create different response with same mapping. The only difference will be the argument passed in the url.

For example,

http://localhost/manageuser?adduser=test

http://localhost/manageuser?deleteuser=test

I tried with the below approach

@Controller
@RequestMapping("/manageuser")
public class ManageUserController {

    @ResponseStatus(value = HttpStatus.OK)
    protected void deleteUser(@RequestParam("deleteuser") String user) {

        System.out.println(user);
    }

    @ResponseStatus(value = HttpStatus.OK)
    protected void addUser(@RequestParam("addUser") String user) {
        System.out.println(user);
    }

}

I wasn't able to get it working properly. I am not sure if my approach is correct. What mistake am I making here?