fre*_*doo 5 c# asp.net-mvc routing localization
我正在尝试使用路由实现本地化
我有以下内容:
routes.MapRoute( "DefaultLocalized",
"{lang}/{controller}/{action}/{id}",
new { controller = "Home",
action = "Index",
id = "",
lang = "en" }
);
routes.MapRoute( "Default",
"{controller}/{action}/{id}",
new { controller = "Home",
action = "Index",
id = "" }
);
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当我调用我的页面时domain/en/home/index
,它工作正常,但当我打电话时,domain/home/index
我得到错误404:无法找到资源.
此外,当我在domain/en/home/index
我点击一个安全的页面时,我被重定向到domain/Account/login
如何重定向到domain/en/Account/login
?
另外,当我收到应用程序错误时,如何将其重定向到domain/en/home/error
?
真正的问题是如何使用语言作为路由参数实现本地化?
Mar*_*ell 10
默认情况下,路由将从左到右匹配,因此"domain/home/index"将首先匹配lang = domain,controller = index,action(默认为index),id(默认为0/null).
为了解决这个问题,我相信你可以在MapRoute上指定一个正则表达式(匹配,例如,恰好有两个字符的语言) - 它在某些时候发生了变化,但是......(抱歉,目前没有IDE,所以我可以不准确检查.
从记忆中,它可能是:
routes.MapRoute( "DefaultLocalized",
"{lang}/{controller}/{action}/{id}",
new { controller = "Home",
action = "Index",
id = "",},
new { lang = "[a-z]{2}" }
);
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请注意,您可能不希望每个操作都采用"字符串lang",因此您应该在基本控制器或动作过滤器中处理路径的"lang"部分(在任何一种情况下,可能都是将信息添加到ViewData).
我知道这是一个非常古老的问题,但只需解决一整套相关问题,我想我会分享我的解决方案.
下面是一个完整的解决方案,包括一些额外的技巧,可以轻松更改语言.它允许特定的文化,而不仅仅是特定的语言(但在本例中只保留语言部分).
这个新路由包括一个约束(正如其他人也建议的那样),以确保语言路由不会获取某些标准路径.不需要默认语言值,因为它都由(由LocalisationAttribute
步骤2)处理.
public static void RegisterRoutes(RouteCollection routes)
{
...
// Special localisation route mapping - expects specific language/culture code as first param
routes.MapRoute(
name: "Localisation",
url: "{lang}/{controller}/{action}/{id}",
defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional },
constraints: new { lang = @"[a-z]{2}|[a-z]{2}-[a-zA-Z]{2}" }
);
// Default routing
routes.MapRoute(
name: "Default",
url: "{controller}/{action}/{id}",
defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional }
);
}
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这将在处理控制器请求之前查看它们,并根据URL,cookie或默认浏览器文化更改当前区域性.
// Based on: http://geekswithblogs.net/shaunxu/archive/2010/05/06/localization-in-asp.net-mvc-ndash-3-days-investigation-1-day.aspx
public class LocalisationAttribute : ActionFilterAttribute
{
public const string LangParam = "lang";
public const string CookieName = "mydomain.CurrentUICulture";
// List of allowed languages in this app (to speed up check)
private const string Cultures = "en-GB en-US de-DE fr-FR es-ES ro-RO ";
public override void OnActionExecuting(ActionExecutingContext filterContext)
{
// Try getting culture from URL first
var culture = (string)filterContext.RouteData.Values[LangParam];
// If not provided, or the culture does not match the list of known cultures, try cookie or browser setting
if (string.IsNullOrEmpty(culture) || !Cultures.Contains(culture))
{
// load the culture info from the cookie
var cookie = filterContext.HttpContext.Request.Cookies[CookieName];
var langHeader = string.Empty;
if (cookie != null)
{
// set the culture by the cookie content
culture = cookie.Value;
}
else
{
// set the culture by the location if not specified - default to English for bots
culture = filterContext.HttpContext.Request.UserLanguages == null ? "en-EN" : filterContext.HttpContext.Request.UserLanguages[0];
}
// set the lang value into route data
filterContext.RouteData.Values[LangParam] = langHeader;
}
// Keep the part up to the "-" as the primary language
var language = culture.Split(new char[] { '-' }, StringSplitOptions.RemoveEmptyEntries)[0];
filterContext.RouteData.Values[LangParam] = language;
// Set the language - ignore specific culture for now
Thread.CurrentThread.CurrentUICulture = CultureInfo.CreateSpecificCulture(language);
// save the locale into cookie (full locale)
HttpCookie _cookie = new HttpCookie(CookieName, culture);
_cookie.Expires = DateTime.Now.AddYears(1);
filterContext.HttpContext.Response.SetCookie(_cookie);
// Pass on to normal controller processing
base.OnActionExecuting(filterContext);
}
}
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例如
[Localisation] <<< ADD THIS TO ALL CONTROLLERS (OR A BASE CONTROLLER)
public class AccountController : Controller
{
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这是一个有点棘手的地方,需要一些解决方法.
将ChangeLanguage方法添加到您的帐户控制器.这将从"上一个路径"中删除任何现有语言代码,以允许新语言生效.
// Regex to find only the language code part of the URL - language (aa) or locale (aa-AA) syntax
static readonly Regex removeLanguage = new Regex(@"/[a-z]{2}/|/[a-z]{2}-[a-zA-Z]{2}/", RegexOptions.Compiled);
[AllowAnonymous]
public ActionResult ChangeLanguage(string id)
{
if (!string.IsNullOrEmpty(id))
{
// Decode the return URL and remove any language selector from it
id = Server.UrlDecode(id);
id = removeLanguage.Replace(id, @"/");
return Redirect(id);
}
return Redirect(@"/");
}
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菜单选项包含指定为路径参数的新语言的链接.
例如(Razor例子)
<li>@Html.ActionLink("English", "ChangeLanguage", "Account", new { lang = "en", id = HttpUtility.UrlEncode(Request.RawUrl) }, null)</li>
<li>@Html.ActionLink("Spanish", "ChangeLanguage", "Account", new { lang = "es", id = HttpUtility.UrlEncode(Request.RawUrl) }, null)</li>
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返回URl是当前页面,经过编码,以便它可以成为URL的id参数.这意味着您需要启用某些转义序列,否则Razor会拒绝这些转义序列作为潜在的安全违规.
注意:对于非剃刀设置,您基本上需要一个具有新语言的锚点和当前页面相对URL,如下所示:
http://website.com/{language}/account/changelanguage/{existingURL}
{language}
新文化代码在哪里,是{existingURL}
当前相对页面地址的URL编码版本(这样我们将返回同一页面,选择新语言).
返回URL所需的编码意味着您需要启用某些转义字符web.config
,或者现有的URL参数将导致错误.
在你的web.config中,找到httpRuntime
标签(或添加它)<system.web>
并向其添加以下内容(基本上删除该属性的标准版本中的%):
requestPathInvalidCharacters="<,>,&,:,\,?"
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在您的web.config中,找到该<system.webserver>
部分并在其中添加以下内容:
<security>
<requestFiltering allowDoubleEscaping="true"/>
</security>
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