Self-host ASP.. NET Web API和Self-host SignalR结合在一起的windows服务

我想构建一个Windows服务，通过Self-host ASP提供一些服务。. NET Web API。另外，我想通过Self-host SignalR通知客户一些变化。我以为ASP。. NET SignalR将是通知中心的完美解决方案。

当我同时运行两个服务时，它们不能一起工作。如果我删除SignalR, Self-host API开始完美地工作。反之亦然:删除windows服务，SignalR也能正常工作。

我不确定我的问题是什么，是否有可能同时拥有一个自托管的asp.net Web API和SignalR的windows服务?

我尝试了相同和不同的端口，但它不工作。

另一个问题是，有可能在同一个端口上有两个吗?

My installed packages:

Microsoft.AspNet.WebApi.SelfHost
Microsoft.AspNet.SignalR.SelfHost
Microsoft.AspNet.WebApi.Owin
Microsoft.Owin.Host.HttpListener
Microsoft.Owin.Hosting
Microsoft.Owin.Cors

我的代码

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.ServiceProcess;
using System.Text;
using System.Threading.Tasks;
using System.Web.Http;
using System.Web.Http.SelfHost;
using Microsoft.AspNet.SignalR;
using Microsoft.Owin.Hosting;
using Owin;
using Microsoft.Owin.Cors;
using Microsoft.Owin;
[assembly: OwinStartup(typeof(WindowsService_HostAPI.Startup))]
namespace WindowsService_HostAPI
{
    partial class SelfHostService : ServiceBase
    {
        IDisposable SignalR;
        EventLog myLog = new EventLog();
        private const string appId = "MYHUB";
        public SelfHostService()
        {
            InitializeComponent();
        }
        protected override void OnStart(string[] args)
        {
            myLog.Source = "MY HUB ";
            var config = new HttpSelfHostConfiguration("http://localhost:9090");
            config.Routes.MapHttpRoute(
               name: "API",
               routeTemplate: "{controller}/{action}/{id}",
               defaults: new { id = RouteParameter.Optional }
           );
            HttpSelfHostServer server = new HttpSelfHostServer(config);

            string CertLocation = ""; 
            server.OpenAsync().Wait();
            try
            {

                myLog.WriteEntry("Notification HUB Start " );
            }
            catch (Exception ex)
            {
                myLog.WriteEntry("Notification Failed TO Start : " + ex.Message + "  |||| " + CertLocation);
            }
            // SignalR
            string url = "http://localhost:9191";
            SignalR = WebApp.Start(url);
        }
        protected override void OnStop()
        {
            // TODO: Add code here to perform any tear-down necessary to stop your service.
            try
            {
                push.StopAllServices(true);
                SignalR.Dispose();
            }
            catch (Exception ex)
            {
                myLog.WriteEntry("Notification Failed TO Stop : " + ex.Message);
            }
        }
    }
    class Startup
    {
        public void Configuration(IAppBuilder app)
        {
            app.UseCors(CorsOptions.AllowAll);
            app.MapSignalR();
        }
    }
    public class UserGroupNotification : Hub
    {
        public void Send(string UGID, string message)
        {
            Clients.All.addMessage(UGID, message);
        }

    }
}

public void Configuration(IAppBuilder appBuilder)
{
    var config = new HttpConfiguration();
    //I use attribute-based routing for ApiControllers
    config.MapHttpAttributeRoutes(); 
    appBuilder.Map("/signalr", map =>
    {
        var hubConfiguration = new HubConfiguration
        {
        };
        map.RunSignalR(hubConfiguration);
    });
    config.EnsureInitialized(); //Nice to check for issues before first request
    appBuilder.UseWebApi(config);
}