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类库中的C#SignalR

class-library signalr c#

GNewton · 技术社区 · 9 年前

我一直在开发一个Web服务(C#WebAPI2),因此可以使用SignalR发送消息,然后将消息副本存储在TSQL数据库中。然而,在移动了一个类库中的SignalR集线器之后,我现在似乎无法访问它们。我开发了一个非常简单的控制台应用程序来与Web服务通信,但我遇到了一个奇怪的异常。

以下是正在引发的异常:

“StatusCode:500,ReasonPhrase:'内部服务器错误',版本:1.1, 内容:System.Net.Http.StreamContent,标头:\r\n{\r\n 传输编码:分块\r\n X-SourceFiles: =?UTF-8?BQzpcRGV2ZWxvcG1lbnRcU291cmNlQ29kZVxTVVBTZXJ2aWNlXFNVUC5TZXJ2a WNlXHNpZ25hbHJcbmVnb3RpYXRl=\\r\n 缓存控制:专用\r\n日期:2015年3月11日星期三10:50:18 GMT \r\n 服务器:Microsoft IIS/8.0\r\n X-AspNet-Version:4.0.30319\r\n X-Powered-By:ASP.NET\r\n内容类型:text/html; charset=utf-8\r\n}“

发生“System.AggregateException”类型的未处理异常在SignalR客户端Connection.exe中

OwinStartup文件位于Web Service App_Start文件夹中,如下所示:

using System;
using System.Threading.Tasks;
using Microsoft.Owin;
using Owin;
using Microsoft.AspNet.SignalR;

[assembly: OwinStartup(typeof(Service.App_Start.Startup))]

namespace Service.App_Start
{
    public class Startup
    {
        public void Configuration(IAppBuilder app)
        {
            app.Map("/signalr", map =>
            {
                var hubConfiguration = new HubConfiguration
                {
                    EnableDetailedErrors = true,
                    EnableJSONP = true
                };

                map.RunSignalR(hubConfiguration);
            });
        }
    }
}

非常感谢。

1 回复 | 直到 9 年前

johnnyRose 7 年前

我不确定您案例中的详细信息,但对我来说,我发现我收到了System.AggregationException:

System.AggregateException was unhandled
  HResult=-2146233088
  Message=One or more errors occurred.
  Source=mscorlib
  StackTrace:
       at System.Threading.Tasks.Task.ThrowIfExceptional(Boolean includeTaskCanceledExceptions)
       at System.Threading.Tasks.Task.Wait(Int32 millisecondsTimeout, CancellationToken cancellationToken)
       at System.Threading.Tasks.Task.Wait()
       at Client.CommunicationHandler.AddMessage(String method, String args, String serverUri, String hubName) in c:\Workspace\EnvisionRealTimeRemoteOps\CodeProjectSelfHostedBroadcastServiceSignalRSample\Client\CommunicationHandler.cs:line 24
       at Client.Program.Main(String[] args) in c:\Workspace\EnvisionRealTimeRemoteOps\CodeProjectSelfHostedBroadcastServiceSignalRSample\Client\Program.cs:line 15
       at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
       at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
       at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
       at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
       at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
       at System.Threading.ThreadHelper.ThreadStart()
  InnerException: System.Net.Http.HttpRequestException
       HResult=-2146233088
       Message=An error occurred while sending the request.
       InnerException: System.Net.WebException
            HResult=-2146233079
            Message=Unable to connect to the remote server
            Source=System
            StackTrace:
                 at System.Net.HttpWebRequest.EndGetResponse(IAsyncResult asyncResult)
                 at System.Net.Http.HttpClientHandler.GetResponseCallback(IAsyncResult ar)
            InnerException: System.Net.Sockets.SocketException
                 HResult=-2147467259
                 Message=No connection could be made because the target machine actively refused it 127.0.0.1:8083
                 Source=System
                 ErrorCode=10061
                 NativeErrorCode=10061
                 StackTrace:
                      at System.Net.Sockets.Socket.EndConnect(IAsyncResult asyncResult)
                      at System.Net.ServicePoint.ConnectSocketInternal(Boolean connectFailure, Socket s4, Socket s6, Socket& socket, IPAddress& address, ConnectSocketState state, IAsyncResult asyncResult, Exception& exception)
                 InnerException:

直到我添加了对以下内容的调用:

WebApp.Start("http://localhost:8083"); // Put your desired URL in...

请注意,在我的情况下,我的应用程序使用的是Self-Hosted SignalR。