如何从先前方法包含的方法中获取模型值

Question

我正在使用 Spring MVC

我有方法

@RequestMapping(value = "/firstMethod/getDetails", method = RequestMethod.GET)
@ResponseBody
public Map<String, Object> getFirstMethodDetails(HttpServletRequest request,
        HttpServletResponse response) {
 Map<String, Object> model = new HashMap<String, Object>();
 model.put("name", "Bryan");
 request.getRequestDispatcher("/secondmethod/getDetails")
                    .include(request, response);

 // want to access second methods model values here    

 return model;

}

我从中包含对另一个方法的请求

@RequestMapping(value = "/secondMethod/getDetails", method=RequestMethod.GET)
@ResponseBody
public Map<String, Object> getSecondMethodDetails(HttpServletRequest request,
        HttpServletResponse response) {
 Map<String, Object> model = new HashMap<String, Object>();
 model.put("age", 29);
 return model;
}

现在如何从第一种方法访问第二种方法的模型？？

Answer 1

要在重定向的两个控制器之间传递数据，您可以在 Flash 范围内使用自定义属性。

在这里，您可以在 flash 范围内从第一个方法添加模型，并在第二个方法中访问它。

http://java.dzone.com/articles/spring-mvc-flash-attributes

@RequestMapping(method = RequestMethod.POST)

  public String handleFormSubmission(..., final RedirectAttributes     redirectAttrs) {
    ...
    redirectAttrs.addFlashAttribute("AttributeName", value);
    return "redirect:to_some_url_handled_by_BController";
}

发帖 - How to pass model attributes from one Spring MVC controller to another controller?