解决方法
这是一个简单的约束，可以在虚构的资源库中查找文章：
public class SlugRouteConstraint : IRouteConstraint
{
private readonly ISlugRepository slugRepository = new SlugRepository();
public bool Match(HttpContextBase httpContext,Route route,string parameterName,RouteValueDictionary values,RouteDirection routeDirection)
{
if (!values.ContainsKey(parameterName))
return false;
var slug = (string)values[parameterName];
return slugRepository.Exists(slug);
}
}
你可以按照这样的方式连线：
routes.MapRoute("Slugs","{slug}",new { controller = "Articles",action = "View" },new { slug = new SlugConstraint() });
