ASP.NET MVC 路由中未传递参数值

发布于 2024-10-14 19:27:30 字数 1221 浏览 2 评论 0原文

我正在学习如何在 ASP.NET MVC 中创建自定义路由，但遇到了困难。在我的 Global.asax.cs 文件中，我添加了以下内容：

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

    routes.MapRoute(
        "Default", // Route name
        "{controller}/{action}/{id}", // URL with parameters
        new { controller = "Home", action = "Index", id = UrlParameter.Optional } // Parameter defaults
    );

    // My Custom Route.
    routes.MapRoute(
        "User_Filter",
        "home/filter/{name}",
        new { controller = "Home", action = "Filter", name = String.Empty }
    );
}

这个想法是让我能够导航到 http://localhost:123/home/filter/mynameparam。这是我的控制器：

public class HomeController : Controller
{
    public ActionResult Index()
    {
        return View();
    }

    public ActionResult Filter(string name)
    {
        return this.Content(String.Format("You found me {0}", name));
    }
}

当我导航到 http://localhost:123/home/filter/mynameparam 时，调用控制器方法 Filter ，但参数 name 始终为null。

有人可以指导我构建自定义路由的正确方法，以便将 url 中的名称部分传递到 Filter() 的 name 参数中。

原文

I'm learning about creating custom routes in ASP.NET MVC and have hit a brick wall. In my Global.asax.cs file, I've added the following:

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

    routes.MapRoute(
        "Default", // Route name
        "{controller}/{action}/{id}", // URL with parameters
        new { controller = "Home", action = "Index", id = UrlParameter.Optional } // Parameter defaults
    );

    // My Custom Route.
    routes.MapRoute(
        "User_Filter",
        "home/filter/{name}",
        new { controller = "Home", action = "Filter", name = String.Empty }
    );
}

The idea is for me to able to navigate to http://localhost:123/home/filter/mynameparam. Here is my controller:

public class HomeController : Controller
{
    public ActionResult Index()
    {
        return View();
    }

    public ActionResult Filter(string name)
    {
        return this.Content(String.Format("You found me {0}", name));
    }
}

When I navigate to http://localhost:123/home/filter/mynameparam the contoller method Filter is called, but the parameter name is always null.

Could someone give a pointer as to the correct way for me to build my custom route, so that it passes the name part in the url into the name parameter for Filter().

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忆伤 2024-10-21 19:27:30

Default 路由应该是最后一个。
试试这样：

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

    // My Custom Route.
    routes.MapRoute(
        "User_Filter",
        "home/filter/{name}",
        new { controller = "Home", action = "Filter", name = String.Empty }
    );

    routes.MapRoute(
        "Default", // Route name
        "{controller}/{action}/{id}", // URL with parameters
        new { controller = "Home", action = "Index", id = UrlParameter.Optional } // Parameter defaults
    );
}

The Default route should be the last one.
Try it this way:

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

    // My Custom Route.
    routes.MapRoute(
        "User_Filter",
        "home/filter/{name}",
        new { controller = "Home", action = "Filter", name = String.Empty }
    );

    routes.MapRoute(
        "Default", // Route name
        "{controller}/{action}/{id}", // URL with parameters
        new { controller = "Home", action = "Index", id = UrlParameter.Optional } // Parameter defaults
    );
}

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