MVC 路由可选字符串参数和难看的 url

Question

我在 4.5.1 上使用 mvc 5.2.3 并想要这些 url

/Nike/Shoes
/Nike/Shoes/运行
/Nike/Shirts/2002342345
/Nike/Shoes/运行/98765432234

我的控制器有：

[HttpGet]
[Route("{brand}/{category}/{subcategory}/{page:int?}", Name="ProductIndex")]
public ActionResult Index(string brand, string category, int? page, string subcategory = "")

并给出 /Nike/Shoes/运行但没有 /Nike/Shoes 但 /Products?brand=Nike&category=Shoes

当我添加

[HttpGet]
[Route("{brand}/{category}/{page:int?}")]
public ActionResult Index(string brand, string category, int? page)

/Nike/Shoes/ 有效，但我也有 /Nike/Shoes/?subcategory=运行

和我的详细方法：

[HttpGet]
[Route("{brand}/{category}/{subcategory}/{productid:int:min(9000)}", Name="ProductDetails")]
public ActionResult Details(int productid)

给出：

The current request is ambiguous between the following action methods: System.Web.Mvc.ActionResult Index(System.String, System.String, System.Nullable`1[System.Int32], System.String) on type shopmvc.Controllers.ProductsController System.Web.Mvc.ActionResult Index(shopmvc.ViewModels.ProductsViewModel) on type shopmvc.Controllers.ProductsController System.Web.Mvc.ActionResult Details(Int32) on type shopmvc.Controllers.ProductsController

所以我的产品 link 和 category/subcategory 路由有问题。或者我尝试达到它的方式：

<a href="@Url.RouteUrl("ProductDetails", new { brand = item.Brand, category = item.Category, subcategory = item.SubCategory, productid = item.ID })">test</a>
<a href="@Url.Action("Details", "Products", new { brand = item.Brand, category = item.Category, subcategory = item.SubCategory, productid = item.ID })">
<a href="@Url.Action("Index", "Products", new { brand = c.Brand, category = c.Category, subcategory = c.SubCategory })">@c.DisplayName</a>

Answer 1

您是否尝试过将 Global.asax 中的路线从最具体到最一般？您的应用程序不知道检查路由的顺序，因此 brand/category/subcategory/nnnnn 可能是页面 nnnnn 或产品 nnnnn。

您需要先查看这条路线：

[HttpGet]
[Route("{brand}/{category}/{subcategory}/{productid:int:min(9000)}", Name="ProductDetails")]
public ActionResult Details(int productid)

然后这个：

[HttpGet]
[Route("{brand}/{category}/{subcategory}/{page:int?}", Name="ProductIndex")]
public ActionResult Index(string brand, string category, int? page, string subcategory = "")

或者，您可以修改路由，使页面路由如下所示：

`brand/category/subcategory/p-n`

例如/Nike/Shoes/Running/p-2

编辑：如果你这样做会发生什么？任何小于 9000 的数字都将被解释为页码，尽管这可能会让用户感到困惑！

[HttpGet]
[Route("{brand}/{category}/{subcategory}/{page:int?:max:8999}", Name="ProductIndex")]
public ActionResult Index(string brand, string category, int? page, string subcategory = "")

Answer 2

获得顶级通用级别，并从那里确定其余级别如何？

[HttpGet]
[Route("{brand}/{category}/{*subdivision}", Name="ProductIndex")]
public ActionResult Index(string brand, string category, string subdivision)

然后确定细分的拆分是否包含更深的路径或产品 ID，并根据该选择调用正确的方法

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