java flash

redirectAttributes.java

 @PostMapping({"/expenses/plannings/insert"})
    public String insertDistribution(RedirectAttributes redirectAttributes, @ModelAttribute PlanBranch planBranch,
                                     BindingResult result) {
        PlanBranchRS planBranchRS = planningService.store(planBranch);
        redirectAttributes.addFlashAttribute("success", planBranchRS.isSuccess());
        redirectAttributes.addFlashAttribute("message", planBranchRS.getMessage());
        return "redirect:/expenses/plannings/" + planBranch.getBranch() + "/" + planBranch.getName();
    }