Question

我正在尝试在Mono解决方案上编写一个SignalR自托管服务器的简单示例，以演示给我们的执行部门。我已经遵循了github示例代码，并且我有一半的功能正常工作。按下“广播”按钮后，文本框中的消息将在服务器控制台中回显，但不会广播回客户端。

服务器代码：

    public class Global : System.Web.HttpApplication
    {
        void Application_Start(object sender, EventArgs e)
        {
            //Initialize your application
            new AppHost().Init();

            WebApplication.Start<Startup>("http://127.0.0.1:10000");
        }

        protected void Application_BeginRequest(object src, EventArgs e)
        { 
            this.Context.Response.AddHeader("Access-Control-Allow-Headers", "accept,origin,authorization,content-type");

            #if DEBUG
            Profiler.Start();
            #endif
        }

        protected void Application_EndRequest(object src, EventArgs e)
        {
            #if DEBUG
            Profiler.Stop();
            #endif
        }
    }

    class Startup
    {
        public void Configuration(IAppBuilder app)
        {
            app.MapHubs(new HubConfiguration { EnableCrossDomain = true });
        }
    }

    public class Chat : Hub
    {
        public void Send(string message)
        {
            Console.WriteLine(message);
            Clients.All.addMessage(message);
        }
    }
}

客户端代码：

<script src="http://code.jquery.com/jquery-1.9.1.min.js" type="text/javascript">   </script>
<script src="Scripts/jquery.signalR.min.js" type="text/javascript"></script>
<!--  If this is an MVC project then use the following -->
<!--  <script src="~/signalr/hubs" type="text/javascript"></script> -->
<script src="http://127.0.0.1:10000/signalr/hubs" type="text/javascript"></script>
<script type="text/javascript">
    $(function () {
        $.connection.hub.url = "http://127.0.0.1:10000/signalr";
        $.connection.hub.logging = true;

        // Proxy created on the fly          
        var chat = $.connection.chat;

        // Declare a function on the chat hub so the server can invoke it          
        chat.client.addMessage = function (message) {
        $('#messages').append('<li>' + message + '</li>');
        };

        // Start the connection
        $.connection.hub.start({ jsonp: true }).done(function() {
            $("#broadcast").click(function () {
                // Call the chat method on the server
                    chat.server.send($('#msg').val());
            });
        });
    });
</script>

  <div>
    <input type="text" id="msg" />
    <input type="button" id="broadcast" value="broadcast" />

    <ul id="messages">
    </ul>
  </div>

当我启动客户端时，我在协商过程中遇到一个奇怪的错误，这似乎很奇怪，因为客户端可以成功地将消息推送到服务器。

[17:13:54 GMT-0400 (EDT)] SignalR: Auto detected cross domain url. jquery.signalR.min.js:10
[17:13:54 GMT-0400 (EDT)] SignalR: Negotiating with 'http://127.0.0.1:10000/signalr/negotiate'. jquery.signalR.min.js:10
[17:13:54 GMT-0400 (EDT)] SignalR: SignalR: Initializing long polling connection with server. jquery.signalR.min.js:10
[17:13:54 GMT-0400 (EDT)] SignalR: Attempting to connect to 'http://127.0.0.1:10000/signalr/connect?transport=longPolling&connectionToke…kjVpNzqCLDXzDDRkE&connectionData=%5B%7B%22name%22%3A%22chat%22%7D%5D&tid=2' using longPolling. jquery.signalR.min.js:10
GET http://127.0.0.1:10000/signalr/connect?transport=longPolling&connectionToke…D&tid=2&callback=jQuery191021586751635186374_1366665233871&_=1366665233874 500 (Internal   Server Error) jquery-1.9.1.min.js:5
send jquery-1.9.1.min.js:5
b.extend.ajax jquery-1.9.1.min.js:5
s jquery.signalR.min.js:10
(anonymous function) jquery.signalR.min.js:10
[17:13:54 GMT-0400 (EDT)] SignalR: Longpolling connected

非常感谢任何帮助。

尝试在SignalR自托管服务器和客户端之间传递消息时出现500内部服务器错误

0 个答案: