在SignalR中使用跟踪

Question

如何在PersistenConnection上使用Trace？

public class Connection : PersistentConnection
{
    protected override Task OnConnectedAsync(IRequest request, string connectionId)
    {
        Trace.TraceInformation("ConnectedAsync ConnectionId:{0}", connectionId);
        return base.OnConnectedAsync(request, connectionId);
    }
}

如何附加Trace侦听器以使TraceInformation调用中的信息变为可见？

Answer 1

打开所有内容：

使用Microsoft.AspNet.SignalR.Tracing;

public StockTickerHub(StockTicker stockTicker)
{
    _stockTicker = stockTicker;
    ITraceManager traceManager = GlobalHost.DependencyResolver.Resolve<ITraceManager>();
    traceManager.Switch.Level = SourceLevels.All;
}