从Hub类调用Group SignalR功能

Question

我创建了一个Hub类。获取所有数据但是当api调用 Clients.Group(spokeCode).broadCast(message); 函数时，它不会在我的ASP.NET网页（客户端页面）上执行广播功能。

我检查过/signalR/hubs是否正确生成了。
2.成功调用OnConnected()

[MethodImpl(MethodImplOptions.Synchronized)]
public void BroadCastMessage(string spokeCode, String constr)
{
    lock (this)
    {
        string procedureName = "procedureName";

        string message = "message goes here ";

        DataAccessLayer dal = new DataAccessLayer();
        //DataSet ds = dal.Executedataset(constr, procedureName);
        DataSet ds = dal.ExecuteDataset(constr, procedureName, new object[] { spokeCode });


        foreach (var set in ds.Tables[0].AsEnumerable().GroupBy(c => c["SpokeCode"]))
        {
            try
            {
                DataTable dt = set.CopyToDataTable();
                //for (int i = 0; i < dt.Rows.Count; i++)
                //{
                foreach (var r in set)
                {
                    message += r.Field<string>("BatchNo") + " Lot No " + r.Field<string>("LotNo");
                    Clients.Group(spokeCode).broadCast(message);
                    //Clients.Group(r.Field<string>("SpokeCode")).BroadCast(message);
                }
            }
            catch (Exception ex)
            {
                ErrorLogging log = new ErrorLogging();
                log.EventLog(ex.Message);
                //Clients.Caller.executeError("An Error has Occured Contact System Administrator");
                Clients.Group(spokeCode).executeError("An Error has been Occured, Contact Administrator");
            }

    }

}

以下是用JavaScript编写的客户端代码

  connectionHub.client.broadCast = function (message) {
                alert(message);
            };