OWin

 public class Startup1
    {
        public void Configuration(IAppBuilder appBuilder)
        {
            appBuilder.Run(HandleRequest);
        }
        static Task HandleRequest(IOwinContext context)
        {
            context.Response.ContentType = "text/plain";
            return context.Response.WriteAsync("Hello, world!");
        }
    }

class Program
    {
        static void Main(string[] args)
        {

            var url = "http://localhost:8080/";
            var startOpts = new StartOptions(url) { };

            using (WebApp.Start<Startup1>(startOpts))
            {
                Console.WriteLine("Server run at " + url + " , press Enter to exit.");
                Console.ReadLine();
            }
            //需要安装Microsoft.AspNet.WebApi.OwinselfHost
        }
    }