/// <summary>
        /// 客户端的UserClient OnlineState处理事件,将该事件转发给其他客户端
        /// </summary>
        /// <param name="se"></param>
        private void UserOnlineStateChanged(ClientTokenOnlineStateChangedEvent se)
        {
            var token = se.User as ClientToken;
            //排除与该服务对象连接的客户端,防止客户端已断开
            var servicePushList = from p in ServerPushList
                                  where p != _pushService
                                  select p;

            foreach (var push in servicePushList)
            {
                push.ServerPushUserOnlineStateChanged(token);
            }
        }
        public void UpdateTokenOnlineState(ClientToken token)
        {
            var client = DefaultClientList.Find(token);

            if (client != null)//若找到,则拷贝远端属性后发出事件通知
            {
                ClientToken.PropertyCopy(token, client);
                var even = new ClientTokenOnlineStateChangedEvent()
                {
                    User = client
                };
                UserOnlineStateChanged(even);
                _pubsub.Publish(even);
            }
        }