Question

我试图创建一个使用slugs的通用路由，但我总是遇到错误

我的想法是，而不是 www.site.com/controller/action ，我会在网址中找到友好的 www.site.com/ {slug}

e.g。 www.site.com/Home/Open 将改为 www.site.com/open-your-company

错误

服务器错误＆＃39; /＆＃39;应用程序无法找到资源

在 Global.asax 我有

public static void RegisterRoutes(RouteCollection routes)
{
    //routes.Clear();
    routes.IgnoreRoute("{resource}.axd/{*pathInfo}");

    routes.MapRoute("DefaultSlug", "{slug}", new { controller = "Home", action = "Open", slug = "" });
    routes.MapRoute(
        name: "Default",
        url: "{controller}/{action}/{id}",
        defaults: new
        {
            area = "",
            controller = "Home",
            action = "Index",
            id = UrlParameter.Optional,
            slug = ""
        }
    );
}

在我的一个cshtml中，我有以下链接（即使在评论时，仍然存在相同的错误）。

@Html.ActionLink("Open your company", "DefaultSlug", new { controller = "Home", action = "Open", slug = "open-your-company" })

编辑：HomeController

public ActionResult Open() { 
    return View(new HomeModel()); 
}

Answer 1

在Global.asax中，slug不能为空，如果为空，则网址不会转到默认路由

public static void RegisterRoutes(RouteCollection routes)
{
    //routes.Clear();
    routes.IgnoreRoute("{resource}.axd/{*pathInfo}");

    routes.MapRoute(
        name: "DefaultSlug",
        url: "{slug}",
        defaults: new { controller = "Home", action = "Open" },
        constraints: new{ slug=".+"});

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

并更新HomeController

public ActionResult Open(string slug) {
    HomeModel model = contentRepository.GetBySlug(slug);

    return View(model); 
}

测试路线链接......

@Html.RouteLink("Open your company", routeName: "DefaultSlug", routeValues: new { controller = "Home", action = "Open", slug = "open-your-company" })

和行动链接......

@Html.ActionLink("Open your company", "Open", routeValues: new { controller = "Home", action = "Open", slug = "open-your-company" })

都产生......

http://localhost:35979/open-your-company

Answer 2

这是我完成类似任务所采取的步骤。这取决于模型上的自定义Slug字段以匹配路径。

设置您的控制器，例如控制器\ PagesController.cs：

public class PagesController : Controller
{
    // Regular ID-based routing
    [Route("pages/{id}")]
    public ActionResult Detail(int? id)
    {
        if(id == null)
        {
            return new HttpNotFoundResult();
        }

        var model = myContext.Pages.Single(x => x.Id == id);
        if(model == null)
        {
            return new HttpNotFoundResult();
        }
        ViewBag.Title = model.Title;
        return View(model);
    }

    // Slug-based routing - reuse View from above controller.
    public ActionResult DetailSlug (string slug)
    {
        var model = MyDbContext.Pages.SingleOrDefault(x => x.Slug == slug);
        if(model == null)
        {
            return new HttpNotFoundResult();
        }
        ViewBag.Title = model.Title;
        return View("Detail", model);
    }
}

在App_Start \ RouteConfig.cs中设置路由

public class RouteConfig
{
    public static void RegisterRoutes(RouteCollection routes)
    {
        // Existing route register code

        // Custom route - top priority
        routes.MapRoute(
                name: "PageSlug", 
                url: "{slug}", 
                defaults: new { controller = "Pages", action = "DetailSlug" },
                constraints: new {
                    slug = ".+", // Passthru for no slug (goes to home page)
                    slugMatch = new PageSlugMatch() // Custom constraint
                }
            );
        }

        // Default MVC route setup & other custom routes
    }
}

自定义IRouteConstraint实现，例如的Utils \ RouteConstraints.cs

public class PageSlugMatch : IRouteConstraint
{
    private readonly MyDbContext MyDbContext = new MyDbContext();

    public bool Match(
        HttpContextBase httpContext,
        Route route,
        string parameterName,
        RouteValueDictionary values,
        RouteDirection routeDirection
    )
    {
        var routeSlug = values.ContainsKey("slug") ? (string)values["slug"] : "";
        bool slugMatch = false;
        if (!string.IsNullOrEmpty(routeSlug))
        {
            slugMatch = MyDbContext.Pages.Where(x => x.Slug == routeSlug).Any();
        }
        return slugMatch;
    }
}

使用Slug的C＃Mvc通用路线

2 个答案: