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using Microsoft.AspNetCore.Hosting; //IWebHostBuilder using Microsoft.AspNetCore.Builder; //IApplicationBuilder using Microsoft.AspNetCore.Http; //WriteAsync using Microsoft.AspNetCore; //webHost using Microsoft.Extensions.Logging;//ILoggerFactory using Microsoft.Extensions.DependencyInjection; // IServiceCollection namespace WebApplication1 { public class Greeter { public string Say() => "Look Ma, no Startup class"; } public class Program { public static void Main(string[] args) { CreateWebHostBuilder(args).Build().Run(); } public static IWebHostBuilder CreateWebHostBuilder(string[] args) => WebHost.CreateDefaultBuilder(args) .ConfigureServices(services => services.AddSingleton(new Greeter())) .Configure(app => { app.Run(context => { var greet = context.RequestServices.GetService<Greeter>(); return context.Response.WriteAsync($"{greet.Say()}"); }); }) .UseEnvironment("Development"); } } |
결과 : Look Ma, no Startup class