ASP.NET MVC路由404错误

Question

首先，我想展示代码

routes.MapRoute(
            name: "SubCategory",
            url: "Category/{categoryName}/{subName}",
            defaults: new { controller = "Categories", action = "SubCategory", categoryName = "", subName = "" }
        );

这是我的路由categoryName和subName是变量

// GET: Category/{categoryName}/{subName}
    public ActionResult SubCategory(string categoryName, string subName)
    {
        CategoriesViewResult viewResult = new CategoriesViewResult();
        viewResult.Categories = _db.Categories.ToList();
        viewResult.CurrentSubCategory = _db.SubCategories.First(x => x.Category.CategoryName == categoryName && x.SubCategoryName == subName);

        return View(viewResult);
    }

这是我的方法; 但是我得到了404.我该怎么写我的路线。

UPDATE

这是默认路线。

Answer 1

试试吧

routes.MapRoute(
            "SubCategory",
            "Category/Sub/{categoryName}/{subName}",
            new { controller = "Categories", action = "SubCategory", apiId = UrlParameter.Optional  }
        );

另外，您使用的是哪个版本的MVC？