通过实现IRouteConstraint接口，实现对某个控制名进行限制。本篇把重点放在自定义约束，其余部分参考：
自定义约束前
using System.Web.Mvc;
using System.Web.Routing;
using MvcApplication2.Extension;
namespace MvcApplication2
{
public class RouteConfig
{
public static void RegisterRoutes(RouteCollection routes)
{
routes.IgnoreRoute("{resource}.axd/{*pathInfo}");
//默认
routes.MapRoute(
name: "Default",
url: "{controller}/{action}/{id}",
defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional }
);
}
}
}
效果
自定义约束后
□ 实现IRouteConstraint接口
using System;
using System.Web.Routing;
namespace MvcApplication2.Extension
{
public class ExcludeController : IRouteConstraint
{
private readonly string _controller;
public ExcludeController(string controller)
{
_controller = controller;
}
public bool Match(System.Web.HttpContextBase httpContext, Route route, string parameterName, RouteValueDictionary values, RouteDirection routeDirection)
{
//如果路由中拿到的controller值与约束设定的值相等，就返回false
return !string.Equals(values["controller"].ToString(), _controller, StringComparison.OrdinalIgnoreCase);
}
}
}
□ 路由添加约束
using System.Web.Mvc;
using System.Web.Routing;
using MvcApplication2.Extension;
namespace MvcApplication2
{
public class RouteConfig
{
public static void RegisterRoutes(RouteCollection routes)
{
routes.IgnoreRoute("{resource}.axd/{*pathInfo}");
//默认
routes.MapRoute(
name: "Default",
url: "{controller}/{action}/{id}",
defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional },
constraints: new { controller = new ExcludeController("RentalProperties") }
);
}
}
}
效果
可见，加上自定义约束后，带RentalProperties名称的控制器将被限制。