我有下面的代码，当我运行这个项目时，它似乎什么都不做。我希望浏览器重定向到http：//localhost：5000，请求“代码”授权流。相反，我只看到“Hello World”。
这是我的startup.cs文件：

using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using Microsoft.IdentityModel.Protocols.OpenIdConnect;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;

namespace OAuthService
{
    public class Startup
    {
        // This method gets called by the runtime. Use this method to add services to the container.
        // For more information on how to configure your application, visit https://go.microsoft.com/fwlink/?LinkID=398940
        public void ConfigureServices(IServiceCollection services)
        {
            services.AddAuthentication(options =>
            {
                options.DefaultAuthenticateScheme = "cookie";
                options.DefaultSignInScheme = "cookie";
                options.DefaultChallengeScheme = "oidc";
            })
            .AddOpenIdConnect("oidc", options =>
            {
                options.Authority = "http://localhost:5000";
                options.RequireHttpsMetadata = false; // dev only

                options.ClientId = "pkce_client";
                options.ClientSecret = "acf2ec6fb01a4b698ba240c2b10a0243";
                options.ResponseType = OpenIdConnectResponseType.Code;
                options.ResponseMode = "form_post";
                options.CallbackPath = "/OAuthService/GetResponse";
                options.UsePkce = true;
            });
        }

        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
        {
            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
            }

            app.UseRouting();

            app.UseAuthentication();            

            app.UseEndpoints(endpoints =>
            {
                endpoints.MapGet("/", async context =>
                {
                    await context.Response.WriteAsync("Hello World!");
                });
            });
        }
    }
}