网站在OpenShift上发布后，无法在Android应用程序上获取FCM有效载荷消息

Question

我有一个JSP Servlet Web应用程序，当客户使用Web应用程序输入一个条目时，应用程序将FCM有效负载消息生成到Android应用程序。当我在本地环境上测试它时，一切都很好，但是现在我在OpenShift上发布了该网站，并尝试使用网站输入一个条目。现在，我无法在我的Android应用程序上获取FCM有效载荷消息。可能是什么问题呢？我的Android应用程序尚未在Google Play商店发布。我使用了所有必需的代码，即

公共最终静态字符串auth_key_fcm =" xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx x"; 公共最终静态字符串api_url_fcm =" https://fcm.googleapis.com/fcm/send";

它在任何机器上都可以正常工作，但是在OpenShift上发布网站后，它不会向Android应用发送任何消息。

// This class is created to send data payload to the FCM to Android app....
public class SendDataPayload {
// Method to send Notifications from server to client end.
public final static String AUTH_KEY_FCM = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx";
public final static String API_URL_FCM = "https://fcm.googleapis.com/fcm/send";
// userDeviceIdKey is the device id you will query from your database
public void pushFCMNotification(String userDeviceIdKey, int y_Id, String f_name, String l_name, String m_number,
        String puja_name, String puja_date, String puja_time, String p_address, String p_landmark, String p_taluka,
        String p_district, String p_pincode) throws Exception {
    String authKey = AUTH_KEY_FCM; // Your FCM AUTH key
    String FMCurl = API_URL_FCM;
URL url = new URL(FMCurl);
    HttpURLConnection conn = (HttpURLConnection) url.openConnection();
    conn.setUseCaches(false);
    conn.setDoInput(true);
    conn.setDoOutput(true);
    conn.setRequestMethod("POST");
    conn.setRequestProperty("Authorization", "key=" + authKey);
    conn.setRequestProperty("Content-Type", "application/json");
    JSONObject json = new JSONObject();
    json.put("to", userDeviceIdKey.trim()); // device token...
    // JSONObject info = new JSONObject();
    // info.put("title", "xyz"); // Notification title
    // info.put("body", "my message body is here!!!");
    // // Notification body
    String timeStamp = new SimpleDateFormat("dd/MM/yyyy  hh:mm a").format(Calendar.getInstance().getTime());
    String date = timeStamp;
    JSONObject data = new JSONObject();
    String first_name_ = URLEncoder.encode(f_name, "UTF-8");
    String last_name_ = URLEncoder.encode(l_name, "UTF-8");
    String santrika_sandesh = URLEncoder.encode("msg-MY", "UTF-8");
    String M_number = URLEncoder.encode(m_number, "UTF-8");
    String Puja_name = URLEncoder.encode(puja_name, "UTF-8");
    String Puja_date = URLEncoder.encode(puja_date, "UTF-8");
    String Puja_time = URLEncoder.encode(puja_time, "UTF-8");
    String P_address = URLEncoder.encode(p_address, "UTF-8");
    String P_landmark = URLEncoder.encode(p_landmark, "UTF-8");
    String P_taluka = URLEncoder.encode(p_taluka, "UTF-8");
    String P_district = URLEncoder.encode(p_district, "UTF-8");
    data.put("key1", santrika_sandesh); // DataPayload
    data.put("key2", date); // DataPayload
    data.put("y_Id", y_Id);
    data.put("f_name", first_name_); // Yajman first name
    data.put("l_name", last_name_);
    data.put("m_number", M_number);
    data.put("puja_name", Puja_name);
    data.put("puja_date", Puja_date);
    data.put("puja_time", Puja_time);
    data.put("puja_add", P_address);
    data.put("puja_landmark", P_landmark);
    data.put("puja_tal", P_taluka);
    data.put("puja_dist", P_district);
    data.put("puja_pincode", p_pincode);
    // send notification and payload data to FCM....
    // json.put("notification", info);
    json.put("data", data);
    OutputStreamWriter wr = new OutputStreamWriter(conn.getOutputStream());
    wr.write(json.toString());
    wr.flush();
    conn.getInputStream();
}

}

Answer 1

请参阅https://firebase.google.com/docs/cloud-messaging/send-message#http_response

FCM将带回成功或错误的HTTP响应。

FCM响应示例{" MultiCast_Id"：************，"成功"：1，"失败"：1，" Canoni‌Cal_ids"：0，"，"结果" ‌：[{{{" error"：" notregis‌ tered"}，{" message_id‌"：" 0：**************}}}

在fcmserverresponse.tostring((下方的代码中，是从fcmm中响应的网页，因此可以看到错误或成功消息。

StringBuilder fcmServerResponse = new StringBuilder();
    BufferedReader in = new BufferedReader(
                        new InputStreamReader(conn.getInputStream()));
                String inputLine;

                while ((inputLine = in.readLine()) != null) {
                    fcmServerResponse.append(inputLine);
                }
     fcmServerResponse.toString()//This is response from FCM