SignalR从服务器控制台应用程序发送到客户端

Question

是否甚至可以向连接到集线器的所有（或选定）连接的客户端发送消息？我的意思是从服务器端到所有客户端。我可以将客户端数据发送到服务器窗口，但是当我进入并尝试从服务器端发送时，客户端窗口上什么也没有发生。如何从服务器应用程序直接推送通知？

服务器：

namespace SignalRHub
{


    class Program
    {
        static void Main(string[] args)
        {
            string url = @"http://localhost:8080/";
            using (WebApp.Start<Startup>(url))
            {
                Console.WriteLine(string.Format("Server running at {0}", url));
                Console.ReadLine();

                while (true)
                {
                    // get text to send
                    Console.WriteLine("Enter your message:");
                    string line = Console.ReadLine();

                    // Get hub context 
                    IHubContext ctx = GlobalHost.ConnectionManager.GetHubContext<TestHub>();

                    // call addMessage on all clients of context
                    ctx.Clients.All.addMessage(line);

                    // pause to allow clients to receive
                    Console.ReadLine();

                }
            }
        }

        class Startup
        {
            public void Configuration(IAppBuilder app)
            {
                app.UseCors(CorsOptions.AllowAll);
                app.MapSignalR();

            }
        }

        [HubName("TestHub")]
        public class TestHub : Hub
        {
            public void SendMsg(string message)
            {
                Console.WriteLine(message);
            }
        }

    }
}

客户：

namespace SignalRClient
{
    class Program
    {
        static void Main(string[] args)
        {
            IHubProxy _hub;

             string url = @"http://localhost:8080/";
            try
            {
                Console.WriteLine("Connecting to: " +url);

                var connection = new HubConnection(url);
                _hub = connection.CreateHubProxy("TestHub");
                connection.Start().Wait();
                Console.WriteLine();
                Console.WriteLine();
                Console.WriteLine("---------- Connection OK.");
                Console.WriteLine();
            }
            catch (Exception e)
            {
                Console.WriteLine("------------ Connection FAILED: ");
                Console.WriteLine(e);
                throw;
            }




            string line = null;
            while ((line = System.Console.ReadLine()) != null)
            {
                _hub.Invoke("SendMsg", line).Wait();
            }

            Console.Read();
        }

    }
}