Windows phone 8 WP8上的推送通知始终生成新URI

我正在开发一个使用原始通知的WindowsPhone8应用程序。对于这一点，我遵循样本

我的代码与示例完全相同：

public MainPage()
        {
            /// Holds the push channel that is created or found.
            HttpNotificationChannel pushChannel;

            // The name of our push channel.
            string channelName = "RawSampleChannel";

            InitializeComponent();

            // Try to find the push channel.
            pushChannel = HttpNotificationChannel.Find(channelName);

            // If the channel was not found, then create a new connection to the push service.
            if (pushChannel == null)
            {
                pushChannel = new HttpNotificationChannel(channelName);

                // Register for all the events before attempting to open the channel.
                pushChannel.ChannelUriUpdated += new EventHandler<NotificationChannelUriEventArgs>(PushChannel_ChannelUriUpdated);
                pushChannel.ErrorOccurred += new EventHandler<NotificationChannelErrorEventArgs>(PushChannel_ErrorOccurred);
                pushChannel.HttpNotificationReceived += new EventHandler<HttpNotificationEventArgs>(PushChannel_HttpNotificationReceived);

                pushChannel.Open();

            }
            else
            {
                // The channel was already open, so just register for all the events.
                pushChannel.ChannelUriUpdated += new EventHandler<NotificationChannelUriEventArgs>(PushChannel_ChannelUriUpdated);
                pushChannel.ErrorOccurred += new EventHandler<NotificationChannelErrorEventArgs>(PushChannel_ErrorOccurred);
                pushChannel.HttpNotificationReceived += new EventHandler<HttpNotificationEventArgs>(PushChannel_HttpNotificationReceived);

                // Display the URI for testing purposes. Normally, the URI would be passed back to your web service at this point.
                System.Diagnostics.Debug.WriteLine(pushChannel.ChannelUri.ToString());
                MessageBox.Show(String.Format("Channel Uri is {0}",
                    pushChannel.ChannelUri.ToString()));

            }
        }

在设备中运行代码后，我发现每次启动应用程序时，它都会生成不同的URI

我意识到HttpNotificationChannel.FindchannelName总是返回null，这就是应用程序总是生成新URI的原因

我已经读过了，但仍然没有帮到我

所以，我的问题是：

如果应用程序已经生成了频道，HttpNotificationChannel.FindChannel Name不应该返回与“null”不同的内容吗？

---

如果我错过了一些可以帮助我的东西，请告诉我。

我浏览了你的帖子和提到的链接。channelUri更新似乎是非常随机的，通常它肯定会因应用程序卸载/安装而更改，但可能还有其他情况。确保用户正确定位的一个可靠方法是将channelUri与另一个唯一标识符关联。例如，在获取channelUri后，您可能希望使用uri和唯一的用户id更新服务器数据库。对于subsequest调用，只能为同一用户更新频道。希望这有点帮助