Question

我们已经实现了ASP.NET MVC网站的本地化版本，其网址结构如下：

URL：// {语言} - {培养} / {控制器} / {行动} / {ID}

通过这种方式，我们可以按照谷歌机器人正确抓取的语言生成网址：

http://localhost/en-US/Home
http://localhost/fr-FR/Home

翻译在两个地方实现。首先，我们使用以下方法修改了MVC的默认路由：

routes.MapRoute(
    name: "Default",
    url: "{language}-{culture}/{controller}/{action}/{id}",
    defaults: new
    {
        controller = "Home", 
        action = "Index", 
        id = UrlParameter.Optional,
        language = "en",
        culture = "US"
    }
);

然后我们创建了一个动作过滤器，切换到URL中可用的当前语言，如果不能用于默认值：

   public class LocalizationAttribute : ActionFilterAttribute
    {        public override void OnActionExecuting(ActionExecutingContext filterContext)
        {

            string language = (string)filterContext.RouteData.Values["language"] ?? "en";
            string culture = (string)filterContext.RouteData.Values["culture"] ?? "US";

            Thread.CurrentThread.CurrentCulture = CultureInfo.GetCultureInfo(string.Format("{0}-{1}", language, culture));
            Thread.CurrentThread.CurrentUICulture = CultureInfo.GetCultureInfo(string.Format("{0}-{1}", language, culture));

        }
    }
}

如果用户输入http://localhost/Whatever，则会出现此问题。 ASP.NET MVC返回“找不到路由”。如果用户忘记传递语言，我该如何传递该语言的默认参数？我虽然通过将默认值设置为路由配置就足够了，但它不起作用

Answer 1

您只需要另一条路线来处理没有第一段的情况。

routes.MapRoute(
    name: "Default-Localized",
    url: "{language}-{culture}/{controller}/{action}/{id}",
    defaults: new
    {
        controller = "Home", 
        action = "Index", 
        id = UrlParameter.Optional
    }
);

routes.MapRoute(
    name: "Default",
    url: "{controller}/{action}/{id}",
    defaults: new
    {
        language = "en",
        culture = "US",
        controller = "Home", 
        action = "Index", 
        id = UrlParameter.Optional
    }
);

匹配URL模式并构建路由值集合（基于默认值或可覆盖它们的占位符）是由Route类处理的2个不同步骤。除非URL模式首先匹配，否则不会填充路径值。

请注意，如果使用操作过滤器来设置当前线程localization won't be available inside of the model binder的区域设置。解决这个问题的方法是使用IAuthorizationFilter代替ActionFilterAttribute。

using System.Globalization;
using System.Threading;
using System.Web.Mvc;

public class LocalizationFilter : IAuthorizationFilter
{
    public void OnAuthorization(AuthorizationContext filterContext)
    {
        var values = filterContext.RouteData.Values;

        string language = (string)values["language"] ?? "en";
        string culture = (string)values["culture"] ?? "US";

        CultureInfo ci= CultureInfo.GetCultureInfo(string.Format("{0}-{1}", language, culture));

        Thread.CurrentThread.CurrentCulture = ci;
        Thread.CurrentThread.CurrentUICulture = ci;
    }
}

然后将其添加为全局过滤器。

public class FilterConfig
{
    public static void RegisterGlobalFilters(GlobalFilterCollection filters)
    {
        filters.Add(new LocalizationFilter());
        filters.Add(new HandleErrorAttribute());
    }
}

如果没有预先附加路线

1 个答案: