Spring 3 Web 请求拦截器 - 如何获取 BindingResult？

发布于 2024-09-26 17:51:57 字数 537 浏览 3 评论 0原文

我真的很欣赏 Spring 3 anoation 驱动的 Web 控制器映射

我有很多具有如下签名的控制器：

@RequestMapping(value = "solicitation/create",method = RequestMethod.POST)
public String handleSubmitForm(Model model, @ModelAttribute("solicitation") Solicitation  solicitation, BindingResult result)

但我的问题是，我想编写一个拦截器，在处理后通过 BindingResults 进行处理 - 如何从 HttpRequest 或 HttpResponse 获取它们？

因为拦截器方法具有相似的签名

public boolean postHandle(HttpServletRequest request, HttpServletResponse response, Object handler)

原文

I realy appreciate Spring 3 anoation driven mapping of Web Controllers

I have a lot of Controllers with signatures like:

@RequestMapping(value = "solicitation/create",method = RequestMethod.POST)
public String handleSubmitForm(Model model, @ModelAttribute("solicitation") Solicitation  solicitation, BindingResult result)

But my issue is, that I want to write an interceptor that would ho through BindingResults after processing - how do I get them from HttpRequest or HttpResponse?

as intercpetor methods are with alike signature

public boolean postHandle(HttpServletRequest request, HttpServletResponse response, Object handler)

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蓝天白云 2024-10-03 17:51:57

执行控制器方法 BindingResult 后，将其存储为名为 BindingResult.MODEL_KEY_PREFIX + 的模型属性，后续模型属性将合并到请求属性中。因此，在合并之前您可以使用 Hurda 自己的答案，合并之后使用：

request.getAttribute(BindingResult.MODEL_KEY_PREFIX + "solicitation")

After execution of controller method BindingResult is stored as a model attribute named BindingResult.MODEL_KEY_PREFIX + <name of the model attribute>, later model attributes are merged into request attributes. So, before merging you can use Hurda's own answer, after merging use:

request.getAttribute(BindingResult.MODEL_KEY_PREFIX + "solicitation")

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生生漫 2024-10-03 17:51:57

因此，在 @Axtavt 的大力帮助下，我得出结论，您可以在 postHandle 方法中从 ModelAndView 获取 Bind reuslt ：

void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) {
  String key = BindingResult.MODEL_KEY_PREFIX + "commandName";
  BindingResult br = (BindingResult) modelAndView.getModel().get(key);
}

So with big help from @Axtavt I came to conlusion, that you can get to Bind reuslt from ModelAndView in postHandle method:

void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) {
  String key = BindingResult.MODEL_KEY_PREFIX + "commandName";
  BindingResult br = (BindingResult) modelAndView.getModel().get(key);
}

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