在ASP MVC 3项目中,我想启用语言切换。
路由定义如下:
routes.IgnoreRoute("{resource}.axd/{*pathInfo}");
routes.MapRoute(
"DefaultWithLanguage", // Route name
"{language}/{controller}/{id}/{slug}", // URL with parameters
new { language = "en", controller = "Front", action = "Details", id = UrlParameter.Optional, slug = UrlParameter.Optional } // Parameter defaults
);
routes.MapRoute(
"Default", // Route name
"{controller}/{action}/{id}", // URL with parameters
new { controller = "Home", action = "Index", id = UrlParameter.Optional } // Parameter defaults
);
尝试切换语言(在_Layout.cshtml中)的工作原理如下:
<li>@Html.ActionLink("Spanish", ViewContext.RouteData.Values["action"].ToString(), ViewContext.RouteData.Values["controller"].ToString(), new { language = "es" })</li>
而不是获得如下所示的网址(在选择西班牙语之后)
.../es/ControllerName/ActionName
我得到了这个:
.../ControllerName/ActionName?Length=11
如果我将ActionLink设置为以下(注意最后一个空参数):
<li>@Html.ActionLink("Spanish", ViewContext.RouteData.Values["action"].ToString(), ViewContext.RouteData.Values["controller"].ToString(), new { language = "es" }, null)</li>
我明白了:
.../ControllerName/ActionName?language=es
我缺少什么? 提前谢谢!
答案 0 :(得分:1)
您的路线注册DefaultWithLanguage
路线注册存在一些问题。它不允许您指定{action}
。这意味着此路由仅匹配Details
操作(因为您已在默认值中指定它)。另一个问题是您使{id}
参数可选。但那是不可能的。只有路径的 last 参数可以是可选的。在您的情况下,后跟{slug}
参数。
所以有一种可能性如下:
public static void RegisterRoutes(RouteCollection routes)
{
routes.IgnoreRoute("{resource}.axd/{*pathInfo}");
routes.MapRoute(
"DefaultWithLanguage",
"{language}/{controller}/{action}/{id}",
new
{
language = "en",
controller = "Front",
action = "Details",
id = UrlParameter.Optional
}
);
}
然后:
@Html.ActionLink(
"Spanish",
ViewContext.RouteData.GetRequiredString("action"),
ViewContext.RouteData.GetRequiredString("controller"),
new { language = "es" },
null
)
如果您想添加{slug}
参数,那么您的{id}
将不再是可选的:
public static void RegisterRoutes(RouteCollection routes)
{
routes.IgnoreRoute("{resource}.axd/{*pathInfo}");
routes.MapRoute(
"DefaultWithLanguage",
"{language}/{controller}/{action}/{id}/{slug}",
new
{
language = "en",
controller = "Front",
action = "Details",
slug = UrlParameter.Optional
}
);
}
然后:
@Html.ActionLink(
"Spanish",
ViewContext.RouteData.GetRequiredString("action"),
ViewContext.RouteData.GetRequiredString("controller"),
new {
language = "es",
id = ViewContext.RouteData.GetRequiredString("id")
},
null
)
答案 1 :(得分:0)
这是达林回答的后续行动。
我想要这样的路线:
.../en/ControllerName/Id
.../en/ControllerName/Id/Slug
.../en/ControllerName
这最后一条路线引起了问题(见达林的回答)。继续获取此路由的“黑客”是定义另一个路由(第二个名为DefaultWithLanguageWithoutId):
public static void RegisterRoutes(RouteCollection routes)
{
routes.IgnoreRoute("{resource}.axd/{*pathInfo}");
routes.MapRoute(
"DefaultWithLanguage", // Route name
"{language}/{controller}/{id}/{slug}", // URL with parameters
new { language = "en", controller = "Front", action = "Details", id = UrlParameter.Optional, slug = UrlParameter.Optional } // Parameter defaults
);
routes.MapRoute(
"DefaultWithLanguageWithoutId", // Route name
"{language}/{controller}", // URL with parameters
new { language = "en", controller = "Front", action = "Details"} // Parameter defaults
);
routes.MapRoute(
"Default", // Route name
"{controller}/{action}/{id}", // URL with parameters
new { controller = "Home", action = "Index", id = UrlParameter.Optional } // Parameter defaults
);
}
这导致代码在母版页中调整为以下
<li>@Html.ActionLink("Deutsch", ViewContext.RouteData.Values["action"].ToString()
, ViewContext.RouteData.Values["controller"].ToString(), new { language = "de"
, id = ViewContext.RouteData.Values["id"]!=null ? ViewContext.RouteData.Values["id"].ToString():null }, null)</li>
<li>@Html.ActionLink("English", ViewContext.RouteData.Values["action"].ToString()
, ViewContext.RouteData.Values["controller"].ToString(), new { language = "en"
, id = ViewContext.RouteData.Values["id"] != null ? ViewContext.RouteData.Values["id"].ToString() : null }, null)</li>
完美的作品!
唯一的“缺点”是在视图中涉及一些代码(我本来希望避免),但我觉得它很值得,因为它非常简单!