Question

我在RouteConfig中有3条路线：

routes.MapRoute(
    name: "ByGroupName",
    url: "catalog/{categoryname}/{groupname}",
    defaults: new { controller = "Catalog", action = "Catalog" }
);
routes.MapRoute(
    name: "ByCatName",
    url: "catalog/{categoryname}",
    defaults: new { controller = "Catalog", action = "Catalog" }
);
routes.MapRoute(
    name: "ByBrandId",
    url: "catalog/brand/{brandId}",
    defaults: new { controller = "Catalog", action = "Catalog" }
);

这是我的动作控制器接收参数：

public ActionResult Catalog(
    string categoryName = null,
    string groupName = null,
    int pageNumber = 1,
    int orderBy = 5,
    int pageSize = 20,
    int brandId = 0,
    bool bundle = false,
    bool outlet = false,
    string query_r = null)
{
// ...
}

当我在查看与@Url.RouteUrl("ByBrandId", new {brandId = 5})的链接时使用，我在操作中输入参数“categoryname”=“brand”而brandId = 0而不是仅使用brandId = 5 ...

当我使用“ByBrandId”routeurl调用"http://localhost:3453/catalog/brand/5"时，我想在actioncontroller中获得brandId = 5 ...，相当于"http://localhost:3453/catalog/Catalog?brandId=1"

感谢

Answer 1

您的路由配置错误。如果您传递了网址/Catalog/brand/something，则始终匹配ByGroupName路由，而不是预期的ByBrandId路由。

首先，您应该更正订单。但是，除了可选的组名之外，前两条路线完全相同，因此您可以简化为：

routes.MapRoute(
    name: "ByBrandId",
    url: "catalog/brand/{brandId}",
    defaults: new { controller = "Catalog", action = "Catalog" }
);
routes.MapRoute(
    name: "ByGroupName",
    url: "catalog/{categoryname}/{groupname}",
    defaults: new { controller = "Catalog", action = "Catalog", groupname = UrlParameter.Optional }
);

现在，当您使用@Url.RouteUrl("ByBrandId", new {brandId = 5})时，它应该会为您提供预期的输出/catalog/brand/5。

有关完整说明，请参阅Why map special routes first before common routes in asp.net mvc。

Asp.net MVC 5 MapRoute用于多条路线

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