.net core web 中使用app.UseRouter的几种使用方式

╰半橙微兮° 2021-06-26 16:06 522阅读 0赞

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 < IInlineConstraintResolver > ();
        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;
        }
    }