自主ASP.NET Web API和自主信号R一起使用Windows服务应用程序

Question

我想构建一个Windows服务,通过自主ASP.NET Web API提供一些服务.另外,我想通过自主信号R告知客户一些变化.我认为ASP.NET SignalR将是通知集线器的完美解决方案.

当我运行这两项服务时,他们不能一起工作.如果我删除SignalR,Self-host API开始完美运行.另一种方式:删除Windows服务,SignalR完美地工作.

我不确定我的问题是什么,是否有可能同时为asp.net Web API和SignalR自行托管一个Windows服务？

我尝试了相同和不同的端口,但它不起作用.

另一个问题是,是否可以将两者放在同一个端口上？

我安装的包:

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);
        }


    }
}

Answer 1

我在我的一个 API 上运行这样的配置 - ApiControllers 和 Signalr hub 在同一 URI 上。我认为你的问题在于 app.MapSignalR() 部分。

这是我在配置中执行此操作的方法：

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);
}