SignalR 2不生成/signalr/集线器

Question

这是一页：

        <script src="~/Scripts/jquery-1.10.2.min.js"></script>
    <script src="~/Scripts/jquery.signalR-2.1.2.min.js"></script>
    <!--Reference the autogenerated SignalR hub script. -->
    <script src="~/signalr/hubs"></script>
    <!--SignalR script to update the chat page and send messages.-->
    <script>
        $(function () {
            // Reference the auto-generated proxy for the hub.
            var notification = $.connection.notificationHub;
            // Create a function that the hub can call back to display messages.
            notification.client.addNewMessage = function (message) {
                // Add the message to the page.
                $('#discussion').append('<li><strong>'
                    + '</strong>: ' + htmlEncode(message) + '</li>');
            };
            // Set initial focus to message input box.
            $('#message').focus();
            // Start the connection.
            $.connection.hub.start().done(function () {
                $('#sendmessage').click(function () {
                    // Call the Send method on the hub.
                    chat.server.send($('#message').val());
                    // Clear text box and reset focus for next comment.
                    $('#message').val('').focus();
                });
            });
        });
        // This optional function html-encodes messages for display in the page.
        function htmlEncode(value) {
            var encodedValue = $('<div />').text(value).html();
            return encodedValue;
        }
    </script>

以下是集线器类：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using Microsoft.AspNet.SignalR;
using Microsoft.AspNet.SignalR.Hubs;

namespace AdminWebApp.Hubs
{
     [HubName("notificationHub")] 
    public class NotificationHub : Hub
    {

        public void SendNotification(string message)
        {
            Clients.All.addNewMessage(message);
        }
    }
}

Startup.cs：

using Microsoft.Owin;
using Owin;

[assembly: OwinStartupAttribute(typeof(AdminWebApp.Startup))]
namespace AdminWebApp
{
    public partial class Startup
    {
        public void Configuration(IAppBuilder app)
        {
            ConfigureAuth(app);
        }
    }
}

当我尝试访问：http://localhost:4551/signalr/hubs时，我得到了HTTP404NotFindError，当我试图运行页面时，我得到了：

 Failed to load resource: the server responded with a status of 404 (Not Found)
 Uncaught TypeError: Cannot read property 'client' of undefined 

我试过这样做：signalR : /signalr/hubs is not generated和它不起作用。

有什么想法吗？

Answer 1

在关于Global.asax事件的Application_Start文件中，您必须注册集线器url。

    protected void Application_Start()
    {
        RouteTable.Routes.MapHubs();
    }

Answer 2

对我来说很管用：

转到项目中的启动类，在Configuration方法中添加以下内容：

app.MapSignalR("/signalr"，新HubConfiguration())；

我希望它对你有用

Answer 3

尝试此操作，无需在事件中写入行。

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using Owin;
using Microsoft.Owin;
[assembly: OwinStartup(typeof(Faceless_Books.Hubs.Startup))]

namespace Faceless_Books.Hubs
{
public class Startup
{
    public void Configuration(IAppBuilder app)
    {
        // Any connection or hub wire up and configuration should go here
        app.MapSignalR();
    }
}
}