Question

我正在寻找一种解决方案，将2个@ModelAttributes从我的GET控制器传递到我的POST控制器而不使用Session。我正在使用Spring Boot和Thymeleaf。我的观点仅限于其中一个，但第二个控制器需要同时使用它们。问题是第二个控制器重新初始化视图中未使用的@ModelAttribute。

控制器：

    //in this controller I've initialized the first @modelAttribute
    @RequestMapping(value="/simulations", method=RequestMethod.POST)
    public String checkSimulationsManagerForm(@Valid @ModelAttribute("sim_manager") Simulations_manager sim_manager, BindingResult bindingResult, final RedirectAttributes redirectAttributes) {
        if (bindingResult.hasErrors()) {
            return "set_simulations-manager_form"; 
        }
        redirectAttributes.addFlashAttribute("sim_manager", sim_manager);
        return "redirect:/simulations2";    
    }

    //GET
    @RequestMapping(value="/simulations2", method=RequestMethod.GET)
    public String showSimulationsClassForm(@ModelAttribute("sim_class") Simulations_class sim_class, @ModelAttribute("sim_manager") Simulations_manager sim_manager){
          //Do some stuff
        return "set_simulations-class_form";
    }

    //POST that reinitilize the firse @ModelAttribute
    @RequestMapping(value="/simulations2", method=RequestMethod.POST)
    public String checkSimulationsClassForm( @Valid @ModelAttribute("sim_class") Simulations_class sim_class, BindingResult bindingResult,@ModelAttribute("sim_manager") Simulations_manager manager,final RedirectAttributes redirectAttributes) {
    //ERROR IS HERE, manager attributes are all null, even if they were not.            

    }

观点：

    <form action="simulations2" th:action="@{/simulations2}"  th:object="${sim_class}" method="post">
        …
    </form>

Spring 4 MVC：传递多个@modelattributes槽控制器

0 个答案: