Google-cloud-messaging / gcm推送通知未发送给客户

Question

我尝试通过从服务器推送到客户端来实现服务器 - 客户端通信。由于客户端是Android设备，因此我使用Google云消息传递将消息从服​​务器推送到Android设备。我遵循了tutorial

当前状态：客户端从GCM获取注册表ID。所以客户端 - GCM通信应该没问题。尝试将消息推送到gcm时，服务器会收到以下消息：

  

2015-01-20T23：31：24.289 + 0100 |信息：回复代码：200   2015-01-20T23：31：24.290 + 0100 |信息：{＆＃34; multicast_id＆＃34;：534481856434 ...，＆＃34;成功＆＃34;：1，＆＃34;失败＆＃34;：0 ＆＃34; canonical_ids＆＃34;：0，＆＃34;结果＆＃34;：[{＆＃34; MESSAGE_ID＆＃34;：＆＃34; 0：1421793086402018％64d756d9f9fd7ecd＆＃34;}]}   2015-01-20T23：31：24.296 + 0100 |信息：com.sun.enterprise.web.connector.coyote.PECoyoteResponse$PECoyoteWriter@49 ......

似乎客户端之间的连接 - gcm正在运行。但是gcm并没有将消息转发给我的客户。

我的gcm项目也只显示了2个请求和2000多个错误。我不太了解推送通知来处理这个问题，也许有人可以帮助我。

这是我的代码

客户 MainActivity

// ... some other imports
import com.google.android.gms.gcm.GoogleCloudMessaging;

public class MainActivity extends ActionBarActivity implements OnCheckedChangeListener {

   GoogleCloudMessaging gcm;
   String regid;
   String PROJECT_NUMBER = pn;

   @Override
   protected void onCreate(Bundle savedInstanceState) {

       super.onCreate(savedInstanceState);
       setContentView(R.layout.activity_main);
       getRegId();
   }

   public void getRegId() {
       new AsyncTask<Void, Void, String>() {

           @Override
           protected String doInBackground(Void... params) {
               // TODO Auto-generated method stub
               String msg = "";

               try {

                   if (gcm == null) {
                       gcm = GoogleCloudMessaging.getInstance(getApplicationContext());
                   }

                   regid = gcm.register(PROJECT_NUMBER);
                   msg = "Device registered, registration ID = " + regid;

               } catch (IOException e) {
                   // TODO Auto-generated catch block
                   e.printStackTrace();
                   msg = "Error: " + e.getMessage();
               }
               Log.d("Systemablauf", "MainActivity getRegId() " + msg);

               return msg;
           }

       }.execute(null, null, null);
   }

}

客户端 MessageHandler

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

public class GcmMessageHandler extends IntentService {
    String msg;
    private Handler handler;

    public GcmMessageHandler(String name) {
        super("GcmMessageHandler");
        // TODO Auto-generated constructor stub
    }

    @Override
    public void onCreate() {
        super.onCreate();
        handler = new Handler();
    }

    @Override
    protected void onHandleIntent(Intent intent) {
        // TODO Auto-generated method stub
        Bundle extras = intent.getExtras();

        GoogleCloudMessaging gcm = GoogleCloudMessaging.getInstance(this);

        // The getMessageType() intent parameter must be the intent you received
        // in your BroadcastReceiver.
        String messageType = gcm.getMessageType(intent);

        msg = extras.getString("title");
        showToast();
        Log.d("Systemablauf", "Received: (" + messageType + ") " + extras.getString("title"));

        GcmBroadcastReceiver.completeWakefulIntent(intent);
    }

    private void showToast() {
        // TODO Auto-generated method stub
        handler.post(new Runnable() {
            public void run() {
                Toast.makeText(getApplicationContext(), msg, Toast.LENGTH_LONG).show();
            }
        });
    }

}

客户端 BroadcastReceiver

public class GcmBroadcastReceiver extends WakefulBroadcastReceiver {

    @Override
    public void onReceive(Context context, Intent intent) {
        // TODO Auto-generated method stub
        // Explicitly specify that GcmMessageHandler will handle the intent.
        ComponentName comp = new ComponentName(context.getPackageName(), GcmMessageHandler.class.getName());

        // Start the service, keeping the device awake while it is launching.
        startWakefulService(context, (intent.setComponent(comp)));
        setResultCode(Activity.RESULT_OK);

        Log.d("Systemablauf", "onReceive()");
    }

}

客户端清单

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

    <uses-sdk
        android:minSdkVersion="14"
        android:targetSdkVersion="21" />

    <uses-permission 
        android:name="android.permission.INTERNET"/>
    <uses-permission 
        android:name="android.permission.VIBRATE"/>
    <uses-permission 
        android:name="android.permission.GET_ACCOUNTS"/>
    <uses-permission 
        android:name="android.permission.WAKE_LOCK"/>
    <uses-permission 
        android:name="com.google.android.c2dm.permission.RECEIVE"/>

    <permission
        android:name="thesis.com.example.clientsync.permission.C2D_MESSAGE"
        android:protectionLevel="signature"/>

    <uses-permission 
        android:name="thesis.com.example.clientsync.permission.C2D_MESSAGE" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name=".MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>

        <receiver 
            android:name=".GcmBroadcastReceiver"
            android:permission="com.google.android.c2dm.permission.SEND">
            <intent-filter>
                <action 
                    android:name="com.google.android.c2dm.intent.RECEIVE" />
                <category 
                    android:name="thesis.com.example.clientsync" />
            </intent-filter>
        </receiver>

        <meta-data android:name="com.google.android.gms.version"
            android:value="@integer/google_play_services_version" />

        <service
          android:name="service.MainService" />

    </application>

</manifest>

服务器 Servlet

@WebServlet("/ServerServlet")
public class ServerServlet extends HttpServlet {

    public ServerServlet() {
        super();
        // TODO Auto-generated constructor stub 
    }

    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        // TODO Auto-generated method stub                   
    }

    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        // TODO Auto-generated method stub
        sendNotification();
    }

    private void sendNotification() {

        System.out.println("Sending POST to GCM");
        String apiKey = "AIzaSyA0pOZf13cZzqQHrWBZfFE9XFMHA5ftiAo";

        Content content = createContent();
        POST2GCM.post(apiKey, content);
    }

    private static Content createContent() {
        // TODO Auto-generated method stub
        Content c = new Content();

        c.addRegId("APA91bFrSX_mGLzLUf2Va6...");
        c.createData("Test Title", "Test Message");

        return c;
    }   
}

服务器发布

public class POST2GCM {

    public static void post(String apiKex, Content content) {

        String apiKey = "AIzaSyA0pO...";

        try {

            URL url = new URL("https://android.googleapis.com/gcm/send");
            HttpURLConnection connection = (HttpURLConnection) url.openConnection();
            connection.setRequestMethod("POST");
            connection.setRequestProperty("Content-Type", "application/json");
            connection.setRequestProperty("Authorization", "key = " + apiKey);
            connection.setDoOutput(true);

            Gson gsonMapper = new GsonBuilder().create();
            DataOutputStream writer = new DataOutputStream(connection.getOutputStream());
            writer.writeBytes(gsonMapper.toJson(content));
            writer.flush();
            writer.close();

            int responseCode = connection.getResponseCode();
            System.out.println("\nSending 'POST' request to URL: " + url);
            System.out.println("Response Code : " + responseCode);

            BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
            String inputLine;
            StringBuffer response = new StringBuffer();

            while ((inputLine = in.readLine()) != null) 
                response.append(inputLine);

            in.close();
            System.out.println(response.toString());

        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

    }

}

服务器内容

@SuppressWarnings("serial")
public class Content implements Serializable {

    private List<String> registration_ids;
    private Map<String, String> data;

    public void addRegId (String regId) {
        if (registration_ids == null)
            registration_ids = new LinkedList<String>();
        registration_ids.add(regId);
    }

    public void createData (String title, String message) {
        if (data == null) 
            data = new HashMap<String, String>();

        data.put("title", title);
        data.put("message", message);
    }
}