@Controller
@RequestMapping(value = {INFO_URL})
public class InfoController {

    public static final String INFO_URL = "/info";


  @RequestMapping(value = {"/create"}, method = RequestMethod.GET)
    public ModelAndView create(@RequestParam(value = "id", required = false, defaultValue = "0") Long id) {
        ModelAndView modelAndView = new ModelAndView(CREATE);
        modelAndView.addObject(....);
        modelAndView.addObject(....);
        return modelAndView;
    }

    @RequestMapping(value = {"/create"}, method = RequestMethod.POST)
    public RedirectView create(HttpServletRequest request, Model model, @Valid InfoForm infoForm, BindingResult bindingResult, RedirectAttributes redirectAttrs) {

        RedirectView redirectView = new RedirectView();

        if (bindingResult.hasErrors()) {
            redirectAttrs.addFlashAttribute("errorMessage",            bindingResult.getFieldErrors().stream().map(FieldError::getDefaultMessage).collect(joining(", ")));
            redirectView.setContextRelative(true);
            redirectView.setUrl(request.getRequestURI());
        } else {

            Info info = new Info(infoForm);
            lawInfo = infoService.save(info);
            String url = HtmlHelper.infoToUrlConverter(info);

            redirectView.setUrl(url);
        }
        return redirectView;

    }