.net core 3.0 路由及区域路由与默认首页的配置

public void ConfigureServices(IServiceCollection services)
        {
            services.AddMvc();
        }

 public voidConfigure(IApplicationBuilder app, IWebHostEnvironment env)
        {
            if(env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
            }

            app.UseRouting();
            app.UseEndpoints(endpoints =>{
                endpoints.MapControllerRoute(
                        name: "areas",
                        pattern: "{area:exists}/{controller=Default}/{action=Index}/{id?}");
            });
        }

[Area("SqlFrame")]
public classDefaultController : Controller
{
publicIActionResult Index()
{
returnView();
}
}

{
  "iisSettings": {
    "windowsAuthentication": false,
    "anonymousAuthentication": true,
    "iisExpress": {
      "applicationUrl": "http://localhost:50114",
      "sslPort": 44345}
  },
  "profiles": {
    "IIS Express": {
      "commandName": "IISExpress",
      "launchBrowser": true,
      "launchUrl": "SqlFrame",
      "environmentVariables": {
        "ASPNETCORE_ENVIRONMENT": "Development"}
    },
    "BaseCore": {
      "commandName": "Project",
      "launchBrowser": true,
      "environmentVariables": {
        "ASPNETCORE_ENVIRONMENT": "Development"},
      "applicationUrl": "https://localhost:5001;http://localhost:5000"}
  }
}

 app.UseEndpoints(endpoints =>{
                endpoints.Map("/",context =>{
                    context.Response.Redirect("/SqlFrame/Default/Index");
                    returnTask.CompletedTask;
                });

                endpoints.MapControllerRoute(
                        name: "ss",
                        pattern: "{area:exists}/{controller}/{action}/{id?}");
            });