[Spring] 인터셉터 트러블 슈팅

문제상황 : 

controller의 model 객체 안에 필요한 값이 없었으나,(location)

view로 넘어가며, model에 값들이 주입되어 있다.

 

원인:

이는 인터셉터에서(SponsorSessionCheckIntercepter)

postHandle을 통해 model에 값을 주입 해주고 있었기 때문

@Override     public void postHandle(HttpServletRequest request,                            HttpServletResponse response, Object handler,                            ModelAndView modelAndView) throws Exception {           Principal principal = request.getUserPrincipal();         Authentication authentication = (Authentication) principal;           if (Pattern.matches(ACCESS_SPONSOR_URL, request.getRequestURI())) {             User user = (User) authentication.getPrincipal();               if (user.getSponsorKey() != null && modelAndView != null && !StringUtils.isEmpty(user.getSponsorName())) {                 modelAndView                         .addObject("sponsorId", user.getSponsorId() != null ? user.getSponsorId().toLowerCase() : "");                 modelAndView.addObject("sponsorName", user.getSponsorName() != null ? user.getSponsorName()                                                                                           .toLowerCase() : "");                 modelAndView.addObject("timezone", user.getTimezone() != null ? user.getTimezone() : "UTC+9");                 modelAndView.addObject("location", user.getLocation() != null ? user.getLocation() : "Asia/Seoul");                 modelAndView.addObject("existLogoFile", user.isExistLogoFile());             } else if (StringUtils.isEmpty(user.getSponsorName()) && modelAndView != null) {                 modelAndView.setViewName(String.format("redirect:%s", domainURL));             }         }