Question

我逐个向用户发送通知，需要一段时间。这是我的代码

var deviceios = db.Devices;

        int port = 2195;
        String hostname = "gateway.sandbox.push.apple.com";


        string certificatePath = System.Web.HttpContext.Current.Server.MapPath("mypath/cert.p12);

        string certificatePassword = "password";



        foreach (var item in deviceios)
        {


            X509Certificate2 clientCertificate = new X509Certificate2(certificatePath, certificatePassword, X509KeyStorageFlags.MachineKeySet);
            X509Certificate2Collection certificatesCollection = new X509Certificate2Collection(clientCertificate);

            TcpClient client = new TcpClient(hostname, port);
            SslStream sslStream = new SslStream(
                            client.GetStream(),
                            false,
                            new RemoteCertificateValidationCallback(ValidateServerCertificate),
                            null
            );

            try
            {
                sslStream.AuthenticateAsClient(hostname, certificatesCollection, System.Security.Authentication.SslProtocols.Default, false);
            }
            catch (AuthenticationException ex)
            {
                client.Close();
                return;
            }

            //// Encode a test message into a byte array.
            MemoryStream memoryStream = new MemoryStream();
            BinaryWriter writer = new BinaryWriter(memoryStream);

            writer.Write((byte)0);  //The command
            writer.Write((byte)0);  //The first byte of the deviceId length (big-endian first byte)
            writer.Write((byte)32); //The deviceId length (big-endian second byte)
            string devicetocken = item.device1;//  iphone device token
            byte[] b0 = HexString2Bytes(devicetocken);
            WriteMultiLineByteArray(b0);

            writer.Write(b0);
            String payload;
            string strmsgbody = "";
            int totunreadmsg = 1;
            strmsgbody = message;
            payload = "{\"aps\":{\"alert\":\"" + strmsgbody + "\",\"badge\":" + totunreadmsg.ToString() + ",\"sound\":\"mailsent.wav\"},\"acme1\":\"bar\",\"acme2\":42}";
            writer.Write((byte)0); //First byte of payload length; (big-endian first byte)  
            byte[] b1 = System.Text.Encoding.UTF8.GetBytes(payload);
            writer.Write((byte)b1.Length);    //payload length (big-endian second byte)  
            writer.Write(b1);
            writer.Flush();
            byte[] array = memoryStream.ToArray();
            try
            {
                sslStream.Write(array);
                sslStream.Flush();
            }
            catch
            {



            }
            client.Close();

要向多个设备发送通知，我必须将其分别发送到每个设备。我可以将通知发送到设备列表吗？

Answer 1

由于您使用.NET发送通知，因此可以尝试使用Azure Notification Hub。有一个发送模板通知的选项，允许您发送跨平台通知。

https://docs.microsoft.com/en-us/azure/notification-hubs/notification-hubs-aspnet-cross-platform-notification

此外，您还可以指定标记表达式，以便将通知发送到使用目标标记注册的特定设备组。我相信这可以帮助您通过一个请求向多个设备发送通知。结合使用此模板和使用模板，您甚至可以通过单一请求向多个Android，Windows Phone和iOS设备发送通知。

https://docs.microsoft.com/en-us/azure/notification-hubs/notification-hubs-tags-segment-push-message

您可以在此处找到有关Azure通知中心的更多信息：

https://docs.microsoft.com/en-us/azure/notification-hubs/notification-hubs-push-notification-overview

如何在一个请求中向多个设备（iOS）发送推送通知？

1 个答案: