我正在使用RabbitMq开发一个Android通知服务。它工作正常，但有一个问题。我的通知服务每隔30秒打开一个连接，收到消息后，它将关闭通道和连接。确切地说我的问题在这里！如果有两个用户最多使用我的应用程序应该有两个连接和两个通道！但我测试了我的应用程序，大约有45个连接＆amp;渠道开放。我不知道我的代码有什么问题！这是我的代码：
//------- start service every 30 sec on--------------------
Intent ishintent = new Intent(MainActivity.this, NotificationService.class);
PendingIntent pintent = PendingIntent.getService(MainActivity.this, 0, ishintent, 0);
AlarmManager alarm = (AlarmManager)getSystemService(Context.ALARM_SERVICE);
alarm.cancel(pintent);
alarm.setInexactRepeating(AlarmManager.ELAPSED_REALTIME_WAKEUP, 30000, 30000, pintent);
//---------------------- END SERVICE----------------------------
public class NotificationService extends Service
{
ConnectionFactory factory = new ConnectionFactory();
Connection connection;
Channel channel;
SharedPreferences sp1;
String unm;
String HostName = "my IP";
String UserName = "user";
String Password = "pass";
@Override
public void onCreate()
{
}
@Override
public int onStartCommand(Intent intent, int flags, int startId)
{
sp1=getSharedPreferences("Login", 0);
unm=sp1.getString("Usr", null);
String qName=unm;
String routeKey=unm;
if( isOnline()) {
new AsyncSubscribe().execute(qName, routeKey);
}
return Service.START_STICKY;
}
// close connection when service finish
@Override
public void onDestroy() {
if (connection.isOpen()) {
try {
channel.close();
connection.close();
} catch (IOException e) {
Log.e("MYAPP", "exception", e);
} catch (TimeoutException e) {
Log.e("MYAPP", "exception", e);
}
}
}
@Override
public IBinder onBind(Intent intent)
{
return null;
}
// set connection and channels
public void SubscribeSet() {
try {
factory.setHost(HostName);
factory.setUsername(UserName);
factory.setPassword(Password);
connection = factory.newConnection();
channel = connection.createChannel();
}
catch ( Exception e)
{
Log.e("MYAPP", "exception", e);
}
}
private class AsyncSubscribe extends AsyncTask<String, String, Void> {
Consumer consumer;
boolean flag=true;
@Override
protected void onProgressUpdate(String ... params) {
super.onProgressUpdate(params);
// do something
}
@Override
protected Void doInBackground(String... params) {
SubscribeSet();
try {
channel.exchangeDeclare("logs", "fanout", true);
channel.exchangeDeclare("direct_logs", "direct", true);
channel.queueDeclare(params[0], true, false, false, null);
channel.queueBind(params[0], "logs", "");
channel.queueBind(params[0], "direct_logs", params[1]);
consumer = new DefaultConsumer(channel) {
@Override
public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties, byte[] body)
throws IOException {
properties.builder().deliveryMode(2);
publishProgress(new String(body, "UTF-8"));
}
};
// listen to channel ..
channel.basicConsume(params[0], true, consumer);
try {
// close connection after 10 sec listening to port
Thread.sleep(10000);
channel.close();
connection.close();
stopSelf();
} catch (InterruptedException e) {
Log.e("MYAPP", "exception", e);
}
}
catch ( Exception e) {
Log.e("MYAPP", "exception", e);
}
return null;
}
}