public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory)        {            loggerFactory.AddConsole();            if (env.IsDevelopment())            {                app.UseDeveloperExceptionPage();            }            app.UseHangfireServer();            app.UseHangfireDashboard();            //方式一            //app.Run(async (context) =>            //{            //    await context.Response.WriteAsync("Hello World!");            //});            //方式二            //var endpoint = new RouteHandler((c) => c.Response.WriteAsync("Hello, I am Routing!"));            //app.UseRouter(endpoint);            //方式三            var endpoint = new RouteHandler((c) =>c.Response.WriteAsync($"Hello, I am Routing! your item is {c.GetRouteValue("item")}"));            var resolver = app.ApplicationServices.GetRequiredService
     
      ();            var runRoute = new Route(endpoint, "{item=home}", resolver);            app.UseRouter(runRoute);            //方式四            var runRoute1 = new Route(endpoint, "{item=home}", resolver);            var otherRoute = new Route(endpoint, "other/{item=other_home}", resolver);            var routeCollection = new RouteCollection();            routeCollection.Add(runRoute1);            routeCollection.Add(otherRoute);            app.UseRouter(routeCollection);            //方式五            var routeBuilder = new RouteBuilder(app)            {                DefaultHandler = endpoint,            };            routeBuilder.MapRoute("default", "{item=home}");            routeBuilder.MapRoute("other", "other/{item=other_home}");            app.UseRouter(routeBuilder.Build());            //方式六，改写handler            var myendpoint = new MyRouteHandler();            var myrouteBuilder = new RouteBuilder(app)            {                DefaultHandler = myendpoint,            };            myrouteBuilder.MapRoute("default", "{controller=Home}/{action=Index}/{id?}");            app.UseRouter(myrouteBuilder.Build());        }
     

自定义hanlder

public class MyRouteHandler : IRouter    {        public VirtualPathData GetVirtualPath(VirtualPathContext context)        {            return null;        }        public Task RouteAsync(RouteContext context)        {            context.Handler = (c) =>            {                var printStr = $"controller:{c.GetRouteValue("controller")}," +                $"action:{c.GetRouteValue("action")},id:{c.GetRouteValue("id")}";                return c.Response.WriteAsync(printStr);            };            return Microsoft.AspNetCore.Routing.Internal.TaskCache.CompletedTask;        }    }