Google Cloud сообщений с Java EE

-1

Есть ли хороший учебник с хорошо документированным кодом относительно Google Cloud Messaging с использованием Java EE, как этот ..Google Cloud сообщений с Java EE

http://www.androidhive.info/2012/10/android-push-notifications-using-google-cloud-messaging-gcm-php-and-mysql/

с помощью PHP. Я делаю чат-приложение с помощью websockets в android. У меня есть рабочий код для android для взаимодействия с классом конечных точек websocket. Единственная проблема заключается в том, как использовать GCM в текущей среде.

Пожалуйста, руководство

источник

2015-07-22 user2653926

Это лучший GCM учебник никогда:

http://javapapers.com/android/google-cloud-messaging-gcm-for-android-and-push-notifications/

PHP код сервера:

<?php 
     //generic php function to send GCM push notification 
     function sendPushNotificationToGCM($registatoin_ids, $message) { 
      //Google cloud messaging GCM-API url 
      $url = 'https://android.googleapis.com/gcm/send'; 
      $fields = array(
       'registration_ids' => $registatoin_ids, 
       'data' => $message, 
      ); 
      // Google Cloud Messaging GCM API Key 
      define("GOOGLE_API_KEY", "AIzaSyDA5dlLInMWVsJEUTIHV0u7maB82MCsZbU");   
      $headers = array(
       'Authorization: key=' . GOOGLE_API_KEY, 
       'Content-Type: application/json' 
      ); 
      $ch = curl_init(); 
      curl_setopt($ch, CURLOPT_URL, $url); 
      curl_setopt($ch, CURLOPT_POST, true); 
      curl_setopt($ch, CURLOPT_HTTPHEADER, $headers); 
      curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); 
      curl_setopt ($ch, CURLOPT_SSL_VERIFYHOST, 0); 
      curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); 
      curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($fields)); 
      $result = curl_exec($ch);    
      if ($result === FALSE) { 
       die('Curl failed: ' . curl_error($ch)); 
      } 
      curl_close($ch); 
      return $result; 
     } 
    ?> 
    <?php 

     //this block is to post message to GCM on-click 
     $pushStatus = ""; 
     if(!empty($_GET["push"])) { 
      $gcmRegID = file_get_contents("GCMRegId.txt"); 
      $pushMessage = $_POST["message"]; 
      if (isset($gcmRegID) && isset($pushMessage)) {  
       $gcmRegIds = array($gcmRegID); 
       $message = array("m" => $pushMessage); 
       $pushStatus = sendPushNotificationToGCM($gcmRegIds, $message); 
      }  
     } 

     //this block is to receive the GCM regId from external (mobile apps) 
     if(!empty($_GET["shareRegId"])) { 
      $gcmRegID = $_POST["regId"]; 
      file_put_contents("GCMRegId.txt",$gcmRegID); 
      echo "Ok!"; 
      exit; 
     } 
    ?> 
    <html> 
     <head> 
      <title>Google Cloud Messaging (GCM) Server in PHP</title> 
     </head> 
     <body> 
      <h1>Google Cloud Messaging (GCM) Server in PHP</h1> 
      <form method="post" action="gcm.php/?push=1">             
       <div>         
        <textarea rows="2" name="message" cols="23" placeholder="Message to transmit via GCM"></textarea> 
       </div> 
       <div><input type="submit" value="Send Push Notification via GCM" /></div> 
      </form> 
      <p><h3><?php echo $pushStatus; ?></h3></p>   
     </body> 
    </html>

или Java-сервер:

index.jsp:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
    <html xmlns="http://www.w3.org/1999/xhtml"> 
    <% 
     String pushStatus = ""; 
     Object pushStatusObj = request.getAttribute("pushStatus"); 

     if (pushStatusObj != null) { 
      pushStatus = pushStatusObj.toString(); 
     } 
    %> 
    <head> 
    <title>Google Cloud Messaging (GCM) Server in PHP</title> 
    </head> 
    <body> 

     <h1>Google Cloud Messaging (GCM) Server in Java</h1> 

     <form action="GCMNotification" method="post"> 

      <div> 
       <textarea rows="2" name="message" cols="23" 
        placeholder="Message to transmit via GCM"></textarea> 
      </div> 
      <div> 
       <input type="submit" value="Send Push Notification via GCM" /> 
      </div> 
     </form> 
     <p> 
      <h3> 
       <%=pushStatus%> 
      </h3> 
     </p> 
    </body> 
    </html>

GCMNotification.java:

import java.io.BufferedReader; 
    import java.io.FileReader; 
    import java.io.IOException; 
    import java.io.PrintWriter; 

    import javax.servlet.ServletException; 
    import javax.servlet.annotation.WebServlet; 
    import javax.servlet.http.HttpServlet; 
    import javax.servlet.http.HttpServletRequest; 
    import javax.servlet.http.HttpServletResponse; 

    import com.google.android.gcm.server.Message; 
    import com.google.android.gcm.server.Result; 
    import com.google.android.gcm.server.Sender; 

    @WebServlet("/GCMNotification") 
    public class GCMNotification extends HttpServlet { 
     private static final long serialVersionUID = 1L; 

     // Put your Google API Server Key here 
     private static final String GOOGLE_SERVER_KEY = "AIzaSyDA5dlLInMWVsJEUTIHV0u7maB82MCsZbU"; 
     static final String MESSAGE_KEY = "message";  

     public GCMNotification() { 
      super(); 
     } 

     protected void doGet(HttpServletRequest request, 
       HttpServletResponse response) throws ServletException, IOException { 
      doPost(request, response); 

     } 

     protected void doPost(HttpServletRequest request, 
       HttpServletResponse response) throws ServletException, IOException { 


      Result result = null; 

      String share = request.getParameter("shareRegId"); 

      // GCM RedgId of Android device to send push notification 
      String regId = ""; 
      if (share != null && !share.isEmpty()) { 
       regId = request.getParameter("regId"); 
       PrintWriter writer = new PrintWriter("GCMRegId.txt"); 
       writer.println(regId); 
       writer.close(); 
       request.setAttribute("pushStatus", "GCM RegId Received."); 
       request.getRequestDispatcher("index.jsp") 
         .forward(request, response); 
      } else { 

       try { 
        BufferedReader br = new BufferedReader(new FileReader(
          "GCMRegId.txt")); 
        regId = br.readLine(); 
        br.close(); 
        String userMessage = request.getParameter("message"); 
        Sender sender = new Sender(GOOGLE_SERVER_KEY); 
        Message message = new Message.Builder().timeToLive(30) 
          .delayWhileIdle(true).addData(MESSAGE_KEY, userMessage).build(); 
        System.out.println("regId: " + regId); 
        result = sender.send(message, regId, 1); 
        request.setAttribute("pushStatus", result.toString()); 
       } catch (IOException ioe) { 
        ioe.printStackTrace(); 
        request.setAttribute("pushStatus", 
          "RegId required: " + ioe.toString()); 
       } catch (Exception e) { 
        e.printStackTrace(); 
        request.setAttribute("pushStatus", e.toString()); 
       } 
       request.getRequestDispatcher("index.jsp") 
         .forward(request, response); 
      } 
     } 
    }

Для GCM на стороне устройства эти вещи необходимы:

Google Play Services в SDK
API для Google
Google Play проект Услуги Lib в зависимости Android
Google Id проекта

В AndroidManifest.xml:

<?xml version="1.0" encoding="utf-8"?> 
<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
package="yourPkgName" 
android:versionCode="1" 
android:versionName="1.0" > 

<uses-permission android:name="android.permission.INTERNET" /> 
<uses-permission android:name="android.permission.GET_ACCOUNTS" /> 
<uses-permission android:name="android.permission.WAKE_LOCK" /> 

<permission 
    android:name="yourPkgName.permission.C2D_MESSAGE" 
    android:protectionLevel="signature" /> 

<uses-permission android:name="yourPkgName.permission.C2D_MESSAGE" /> 
<uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" /> 
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /> 
<uses-permission android:name="android.permission.VIBRATE" /> 

<uses-sdk 
    android:minSdkVersion="9" 
    android:targetSdkVersion="16" /> 

<application 
    android:icon="@drawable/ic_launcher" 
    android:label="@string/app_name" > 
    ... 
    <receiver 
     android:name=".GcmBroadcastReceiver" 
     android:permission="com.google.android.c2dm.permission.SEND" > 
     <intent-filter> 
      <action android:name="com.google.android.c2dm.intent.RECEIVE" /> 
      <action android:name="com.google.android.c2dm.intent.REGISTRATION" /> 
      <category android:name="yourPkgName" /> 
     </intent-filter> 
    </receiver> 

    <service android:name=".GCMNotificationIntentService" /> 
</application> 

</manifest>

GCMNotificationIntentService.java:

import android.app.IntentService; 
import android.app.NotificationManager; 
import android.app.PendingIntent; 
import android.content.Context; 
import android.content.Intent; 
import android.os.Bundle; 
import android.os.SystemClock; 
import android.support.v4.app.NotificationCompat; 
import android.util.Log; 

import com.google.android.gms.gcm.GoogleCloudMessaging; 

public class GCMNotificationIntentService extends IntentService { 

    public static final int NOTIFICATION_ID = 1; 
    private NotificationManager mNotificationManager; 
    NotificationCompat.Builder builder; 

    public GCMNotificationIntentService() { 
     super("GcmIntentService"); 
    } 

    public static final String TAG = "GCMNotificationIntentService"; 

    @Override 
    protected void onHandleIntent(Intent intent) { 
     Bundle extras = intent.getExtras(); 
     GoogleCloudMessaging gcm = GoogleCloudMessaging.getInstance(this); 

     String messageType = gcm.getMessageType(intent); 

     if (!extras.isEmpty()) { 
      if (GoogleCloudMessaging.MESSAGE_TYPE_SEND_ERROR 
        .equals(messageType)) { 
       sendNotification("Send error: " + extras.toString()); 
      } else if (GoogleCloudMessaging.MESSAGE_TYPE_DELETED 
        .equals(messageType)) { 
       sendNotification("Deleted messages on server: " 
         + extras.toString()); 
      } else if (GoogleCloudMessaging.MESSAGE_TYPE_MESSAGE 
        .equals(messageType)) { 

       for (int i = 0; i < 3; i++) { 
        Log.i(TAG, 
          "Working... " + (i + 1) + "/5 @ " 
            + SystemClock.elapsedRealtime()); 
        try { 
         Thread.sleep(5000); 
        } catch (InterruptedException e) { 
        } 

       } 
       Log.i(TAG, "Completed work @ " + SystemClock.elapsedRealtime()); 

       sendNotification("Message Received from Google GCM Server: " 
         + extras.get(Config.MESSAGE_KEY)); 
       Log.i(TAG, "Received: " + extras.toString()); 
      } 
     } 
     GcmBroadcastReceiver.completeWakefulIntent(intent); 
    } 

    private void sendNotification(String msg) { 
     Log.d(TAG, "Preparing to send notification...: " + msg); 
     mNotificationManager = (NotificationManager) this 
       .getSystemService(Context.NOTIFICATION_SERVICE); 

     PendingIntent contentIntent = PendingIntent.getActivity(this, 0, 
       new Intent(this, MainActivity.class), 0); 

     NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(
       this).setSmallIcon(R.drawable.gcm_cloud) 
       .setContentTitle("GCM Notification") 
       .setStyle(new NotificationCompat.BigTextStyle().bigText(msg)) 
       .setContentText(msg); 

     mBuilder.setContentIntent(contentIntent); 
     mNotificationManager.notify(NOTIFICATION_ID, mBuilder.build()); 
     Log.d(TAG, "Notification sent successfully."); 
    } 
}

GcmBroadcastReceiver.java:

import android.app.Activity; 
import android.content.ComponentName; 
import android.content.Context; 
import android.content.Intent; 
import android.support.v4.content.WakefulBroadcastReceiver; 

public class GcmBroadcastReceiver extends WakefulBroadcastReceiver { 

    @Override 
    public void onReceive(Context context, Intent intent) { 
     ComponentName comp = new ComponentName(context.getPackageName(), 
       GCMNotificationIntentService.class.getName()); 
     startWakefulService(context, (intent.setComponent(comp))); 
     setResultCode(Activity.RESULT_OK); 
    } 
}

Так что теперь вам просто нужно позвонить registerInBackground() метод и отправить RegID на сервер:

private void registerInBackground() { 
     new AsyncTask() { 
      @Override 
      protected String doInBackground(Void... params) { 
       String msg = ""; 
       try { 
        if (gcm == null) { 
         gcm = GoogleCloudMessaging.getInstance(context); 
        } 
        regId = gcm.register(Config.GOOGLE_PROJECT_ID); 
        Log.d("RegisterActivity", "registerInBackground - regId: " 
          + regId); 
        msg = "Device registered, registration ID=" + regId; 
        //Save in preferences and send to your server 
        storeRegistrationId(context, regId); 
       } catch (IOException ex) { 
        msg = "Error :" + ex.getMessage(); 
        Log.d("RegisterActivity", "Error: " + msg); 
       } 
       Log.d("RegisterActivity", "AsyncTask completed: " + msg); 
       return msg; 
      } 

      @Override 
      protected void onPostExecute(String msg) { 
       Toast.makeText(getApplicationContext(), 
         "Registered with GCM Server." + msg, Toast.LENGTH_LONG) 
         .show(); 
      } 
     }.execute(null, null, null); 
    }

Пример отправки RegID на сервер:

public String shareRegIdWithAppServer(final Context context, final String regId) { 

     String result = ""; 
     Map paramsMap = new HashMap(); 
     paramsMap.put("regId", regId); 
     try { 
      URL serverUrl = null; 
      try { 
       serverUrl = new URL(Config.APP_SERVER_URL); 
      } catch (MalformedURLException e) { 
       Log.e("AppUtil", "URL Connection Error: " + Config.APP_SERVER_URL, e); 
       result = "Invalid URL: " + Config.APP_SERVER_URL; 
      } 
      StringBuilder postBody = new StringBuilder(); 
      Iterator> iterator = paramsMap.entrySet().iterator(); 

      while (iterator.hasNext()) { 
       Entry param = iterator.next(); 
       postBody.append(param.getKey()).append('=').append(param.getValue()); 
       if (iterator.hasNext()) { 
        postBody.append('&'); 
       } 
      } 
      String body = postBody.toString(); 
      byte[] bytes = body.getBytes(); 
      HttpURLConnection httpCon = null; 
      try { 
       httpCon = (HttpURLConnection) serverUrl.openConnection(); 
       httpCon.setDoOutput(true); 
       httpCon.setUseCaches(false); 
       httpCon.setFixedLengthStreamingMode(bytes.length); 
       httpCon.setRequestMethod("POST"); 
       httpCon.setRequestProperty("Content-Type", "application/x-www-form-urlencoded;charset=UTF-8"); 
       OutputStream out = httpCon.getOutputStream(); 
       out.write(bytes); 
       out.close(); 
       int status = httpCon.getResponseCode(); 
       if (status == 200) { 
        result = "RegId shared with Application Server. RegId: " + regId; 
       } else { 
        result = "Post Failure." + " Status: " + status; 
       } 
      } finally { 
       if (httpCon != null) { 
        httpCon.disconnect(); 
       } 
      } 

     } catch (IOException e) { 
      result = "Post Failure. Error in sharing with App Server."; 
      Log.e("AppUtil", "Error in sharing with App Server: " + e); 
     } 
     return result; 
    }

источник

2015-07-22 13:55:55

Его полезно. Спасибо – user2653926

Ссылка только ответы не подходят для этого сайта, вы могли бы использовать функцию комментария вместо этого. Пожалуйста, улучшите свой ответ и добавьте соответствующие данные кода. Ссылка может быть устаревшей в будущем. – Skynet

Я не могу использовать функцию комментариев в вопросах. Моя репутация меньше 50. –

Google Cloud сообщений с Java EE

ответ

Смежные вопросы