Spring重定向：前缀问题

发布于 2024-08-28 15:56:14 字数 517 浏览 4 评论 0原文

我有一个使用 Spring 3 的应用程序。我有一个视图解析器，它基于字符串构建我的视图。所以在我的控制器中我有这样的方法。

@RequestMapping(...)
public String method(){
  //Some proccessing
  return "tiles:tileName"
}

我需要返回一个RedirectView来解决由于浏览器中更新页面导致的重复提交，所以我想到了使用Spring的redirect:前缀。问题是，只有当我使用 URL 更改前缀（而不是解析器可以理解的名称）时，它才会重定向。我想做这样的事情：

@RequestMapping(...)
public String method(){
  //Some proccessing
  return "redirect:tiles:tileName"
}

有没有办法将 RedirectView 与我从每个控制器方法获得的字符串（可解析的视图名称）一起使用？

谢谢

原文

I have an application which uses Spring 3. I have a view resolver which builds my views based on a String. So in my controllers I have methods like this one.

@RequestMapping(...)
public String method(){
  //Some proccessing
  return "tiles:tileName"
}

I need to return a RedirectView to solve the duplicate submission due to updating the page in the browser, so I have thought to use Spring redirect: prefix. The problem is that it only redirects when I user a URL alter the prefix (not with a name a resolver can understand). I wanted to do something like this:

@RequestMapping(...)
public String method(){
  //Some proccessing
  return "redirect:tiles:tileName"
}

Is there any way to use RedirectView with the String (the resolvable view name) I get from the every controller method?

Thanks

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佞臣 2024-09-04 15:56:14

以“redirect:”为前缀的调用是一个 url，以标准浏览器 302 重定向发送。您无法重定向到视图，因为视图不是 URL。相反，您需要一个新的servlet映射到“成功”视图，然后重定向到该视图，而

@RequestMapping("processing.htm")
public String method(){
  //Some proccessing
  return "redirect:success.htm"
}

@RequestMapping("success.htm")
public String method(){
  return "tiles:tileName"
}

当您只需要显示“谢谢”页面时，这种情况可以正常工作，这不需要处理阶段的任何特定数据。但是，如果您的成功页面需要显示处理过程中的一些信息，有两种方法可以实现。

1) 将 url 中的信息作为 get post 传递（“redirect:success.htm?message=hi”）。这是非常容易被破解的，因此非常不推荐。

2）更好的方法是在http会话中存储信息，使用@SessionAttributes和@ModelAttribute

the call prefixed by redirect: is a url, which is sent in a standard browser 302 redirect. you can't redirect to a view, because a view isn't a url. instead you'll need a new servelet mapping to a 'success' view and then redirect to that instead

@RequestMapping("processing.htm")
public String method(){
  //Some proccessing
  return "redirect:success.htm"
}

@RequestMapping("success.htm")
public String method(){
  return "tiles:tileName"
}

this case works fine when you just need to show a 'thank you' page, which requires no specific data from the processing stage. however, if your success page needs to show some information from the processing, there are 2 ways to do it.

1) pass the information in the url as a get post ("redirect:success.htm?message=hi"). this is incredibly hackable, and thus highly unrecommended.

2) the better way is to store information in the http session, using @SessionAttributes and @ModelAttribute

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