MVC中RouteAttribute 使用自定义路由约束

public class OAuthConstraintAttribute : System.Web.Routing.IRouteConstraint
    {
        const string name = "oAuth";
        public bool Match(HttpContextBase httpContext, Route route, string parameterName, RouteValueDictionary values, RouteDirection routeDirection)
        {
            return false;
        }
    }

DefaultInlineConstraintResolver defaultInlineConstraintResolver = new DefaultInlineConstraintResolver();
defaultInlineConstraintResolver.ConstraintMap.Add("oAuth", typeof(OAuthConstraintAttribute));
routes.MapMvcAttributeRoutes(defaultInlineConstraintResolver);