Microsoft.AspNet.SignalR.GlobalHost.ConnectionManager.GetHubContext<tvHub>().Clients.Client(Client.Key).sendMessage(UserHandler.dicGoods[roomid]);

 var lst = UserHandler.getRoomInfoListByRoomID(roomid);

                    foreach (var Client in lst)

                    {

                        //GlobalHost.ConnectionManager.GetHubContext<tvHub>().Clients

                        GlobalHost.ConnectionManager.GetHubContext<tvHub>().Clients.Client(Client.Key).sendMessage(UserHandler.dicGoods[roomid]);

                        //Clients.Client(Client.Key).sendMessage(UserHandler.dicGoods[roomid]);

                    }

Connection = new HubConnection(ServerURI);

HubProxy = Connection.CreateHubProxy("wgHub");

try

{

await Connection.Start();

}

catch //(Exception ex)

{

}

  //声明静态变量存储当前在线用户

    public static class UserHandler

    {

        public static Dictionary<string, SNInfo> ConnectedIds = new Dictionary<string, SNInfo>();

    }

     //用户进入页面时执行的（连接操作）

        public void controllerConnected(string sn, string guid)

        {

            //进行编码，防止XSS攻击

            sn = HttpUtility.HtmlEncode(sn);

            //新增目前使用者上线清单

            UserHandler.ConnectedIds.Add(Context.ConnectionId, new SNInfo(sn, guid));

        }