ASP.NET Core 3中使用动态控制器路由

创建动态路由转换对象继承 DynamicRouteValueTransformer

  public class SlugRouteValueTransformer : DynamicRouteValueTransformer
    {


        public SlugRouteValueTransformer()
        {

        }

        public override async ValueTask<RouteValueDictionary> TransformAsync(HttpContext httpContext, RouteValueDictionary values)
        {
            var requestPath = httpContext.Request.Path.Value;

            if (!string.IsNullOrEmpty(requestPath) && requestPath[0] == '/')
            {
                // Trim the leading slash
                requestPath = requestPath.Substring(1);
            }
            if (string.IsNullOrEmpty(requestPath))
            {
                return new RouteValueDictionary
                {
                    { "area", "Core" },
                    { "controller", "Home" },
                    { "action", "Index" },
                    { "id", "" }
                };
            }
　　　　　　　//此处可以自定义 也可 通过查询数据库来确定路由到何处


            //可修改的values
            return values;
        }
    }

在startup中插入动态路由

 services.AddScoped<SlugRouteValueTransformer>();

 app.UseEndpoints(endpoints =>
            {
                endpoints.MapDynamicControllerRoute<SlugRouteValueTransformer>("/{**slug}");
                endpoints.MapControllerRoute(
                    name: "areas",
                    pattern: "{area:exists}/{controller=Home}/{action=Index}/{id?}");
                endpoints.MapControllerRoute(
                    name: "default",
                    pattern: "{controller=Home}/{action=Index}/{id?}");
            });