如何自定义编码/解码路由值?
我有这条路线:
{controller}/{id}/{action}
因为我认为从 RESTful 的角度来看它更有意义。
问题是 id
可以包含斜杠 (/
),即使编码为“%2F”,这些斜杠也会被视为路由分隔符。即使我有这个 Web.config 部分:
<uri>
<schemeSettings>
<add name="http" genericUriParserOptions="DontUnescapePathDotsAndSlashes" />
<add name="https" genericUriParserOptions="DontUnescapePathDotsAndSlashes" />
</schemeSettings>
</uri>
因为我在中间有 id
,所以我无法采用 {*id}
方法来捕获路由的其余部分包括操作
。
看起来我唯一的选择是将 /
编码为符合 RFC 的字符,例如 !
,但是我不想在控制器内使用临时自定义代码来执行此操作。我希望控制器完整地接收id
,并且已经解码。我希望我的 Url.Action
生成正确编码的 URL。对 MVC 的要求是否太多,或者我是否需要分散 ActionFilters 和自定义 URL 帮助程序?
我能找到的唯一方法是放入自定义的IRouteConstraint来操作它接收的RouteValueDictionary。但这听起来像是一个肮脏的黑客:操纵其输入的约束。天知道它的副作用。您认为这是一个足够理智的想法,还是 ASP.NET MVC 中有更好的机制允许这样做?
编辑:此解决方法仅在解析路由时有效,在生成路由时无效。
I have this route:
{controller}/{id}/{action}
Because I think it makes more sense from RESTful perspective.
The problem is that id
can contain slashes (/
) and those are treated as route separators even when encoded as "%2F". Even when I have this Web.config section in place:
<uri>
<schemeSettings>
<add name="http" genericUriParserOptions="DontUnescapePathDotsAndSlashes" />
<add name="https" genericUriParserOptions="DontUnescapePathDotsAndSlashes" />
</schemeSettings>
</uri>
Because I have id
in the middle I can't employ {*id}
approach which captures the rest of the route including the action
.
It looks like my only option is to encode /
into an RFC compliant character like !
, however I do not want to do it using ad-hoc custom code inside controller. I want controller to receive id
intact, already decoded. And I want my Url.Action
to generate properly encoded URL. Is that too much to ask from MVC, or do I need to scatter ActionFilters and custom URL helpers around?
The only way I could find is to throw in a custom IRouteConstraint
to manipulate the RouteValueDictionary
it receives. That sounds like a dirty hack though: a constraint manipulating its input. God knows its side effects. Do you think this is a sane enough idea, or is there a better mechanism in ASP.NET MVC allowing that?
EDIT: This workaround only works when parsing the route, not when generating one.
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你想做的事无法完成;这已经在 SO 上得到了多次回答 - 特别是最近与 RavenDb 有关,默认情况下在 Id 字段中使用“/”(尽管可以更改)
What you are trying to do cannot be done; this has been answered several times on SO - especially of late in relation to RavenDb which uses "/" in the Id field by default (though this can be changed)