ASP.NET MVC 2 - UrlParameter.Optional 条目必须位于路由末尾吗？

发布于 2024-09-05 16:03:50 字数 907 浏览 2 评论 0原文

我正在将网站从 ASP.NET MVC 1 迁移到 ASP.NET MVC 2。目前，该网站支持以下路由：

/{country}/{language}/{controller}/{action}
/{country}/{controller}/{action}
/{language}/{controller}/{action}
/{controller}/{action}

country 和 language 的格式为可通过正则表达式区分并具有适当的约束。在 MVC 1 中，我将其中每一个注册为单独的路线 - 对于大约 20 种组合中的每一种。在 MVC 2 中，我一直试图使用 UrlParameter.Optional 使用一条路由来覆盖所有四种情况，但我似乎无法让它工作 - 如果我定义 < code>country 和 language 都是可选的，那么例如路由 /Home/Index 就无法成功匹配该路由。这就是我想做的：

routes.MapRoute("Default",
    "{country}/{language}/{controller}/{action}",
    new { country = UrlParameter.Optional, language = UrlParameter.Optional,
        controller = "Home", action = "Index" },
    new { country = COUNTRY_REGEX, language = LANGUAGE_REGEX });

这是不可能的，因为我的选项位于路线的开头，还是我只是错过了一些东西？我找不到任何文档来告诉我我正在做的事情是不可能的，或者为我指明正确的方向。

原文

I am migrating a site from ASP.NET MVC 1 to ASP.NET MVC 2. At the moment, the site supports the following routes:

/{country}/{language}/{controller}/{action}
/{country}/{controller}/{action}
/{language}/{controller}/{action}
/{controller}/{action}

The formats for country and language are distinguishable by Regex and have suitable constraints. In MVC 1, I registered each of these as a separate route - for each of around 20 combinations. In MVC 2, I have been trying to get the same thing working with one route to cover all four cases, using UrlParameter.Optional, but I can't seem to get it working - if I define country and language as both optional, then the route /Home/Index for example doesn't successfully match the route. This is what I am trying to do:

routes.MapRoute("Default",
    "{country}/{language}/{controller}/{action}",
    new { country = UrlParameter.Optional, language = UrlParameter.Optional,
        controller = "Home", action = "Index" },
    new { country = COUNTRY_REGEX, language = LANGUAGE_REGEX });

Is this just impossible because my optionals are at the beginning of the route, or am I just missing something? I can't find any documentation to either tell me what I am doing is impossible or to point me in the right direction.

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无远思近则忧 2024-09-12 16:03:50

唔。有趣的。

这是我能想到的最好的。我猜这是一个坏主意，但这是我能想到的唯一解决方法。我有兴趣听到一些建议/疑虑/投诉。

您可以像这样映射一条近视路线：

routes.MapRoute(
    "Localized",
     "{*loc}",
     new { controller = "Localizer", action = "RedirectIt" },
     new { loc = REGEX_CONSTRAINT_FOR_ENTIRE_ROUTE_VALUE }
);

然后，在您的定位器控制器中，您可以按照您的意愿重定向到正确的操作：

public class LocalizerController : Controller
{
    public ActionResult RedirectIt(string loc)
    {
        //split up the loc string
        //and determine the correct redirect path for the request
    }
}

我是一个会耍小把戏的人。我能说什么？

Hmm. Interesting.

Here's the best I could come up with. I'm guessing that this is a bad idea, but it's the only workaround I could think of. I'd be interested to hear some suggestions/concerns/complaints.

You could map a myopic route like this:

routes.MapRoute(
    "Localized",
     "{*loc}",
     new { controller = "Localizer", action = "RedirectIt" },
     new { loc = REGEX_CONSTRAINT_FOR_ENTIRE_ROUTE_VALUE }
);

Then, in your Localizer controller, you can redirect to the correct action however you'd like:

public class LocalizerController : Controller
{
    public ActionResult RedirectIt(string loc)
    {
        //split up the loc string
        //and determine the correct redirect path for the request
    }
}

I'm a man of cheap tricks. What can I say?

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