我有一个运行的报警经理intentservice从每分钟一台服务器获取数据，然后发送通知。 问题是应用程序打开时我仍然可以获取数据，但如果应用程序被关闭它发送它抛出ECONNREFUSED 。
VOLLEY错误：
java.util.concurrent.ExecutionException:com.android.volley.NoConnectionError:
java.net.ConnectException: failed to connect to samples.openweathermap.org/138.201.197.100 (port 443) AFTER 2500ms: isConnected failed: ECONNREFUSED (Connection refused)
测试中Android 5.1.1
主要活动：
private void scheduleAlarm() {
Intent toastIntent= new Intent(getApplicationContext(),MyBroadcastReceiver.class);
PendingIntent toastAlarmIntent = PendingIntent.getBroadcast(getApplicationContext(), 0, toastIntent,PendingIntent.FLAG_UPDATE_CURRENT);
long startTime=System.currentTimeMillis(); //alarm starts immediately
AlarmManager backupAlarmMgr=(AlarmManager)this.getSystemService(Context.ALARM_SERVICE);
backupAlarmMgr.setInexactRepeating(AlarmManager.RTC_WAKEUP,startTime,1000*30,toastAlarmIntent); // alarm will repeat after every 15 minutes
}
广播接收器：
public class MyBroadcastReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
MyJobIntentService.enqueueWork(context,intent);
}}
MyJobIntentService：
public class MyJobIntentService extends JobIntentService {
private String status="";
public static void enqueueWork(Context context, Intent work) {
enqueueWork(context, MyJobIntentService.class, 1000, work);
}
@Override
protected void onHandleWork(@NonNull Intent intent) {
RequestQueue requestQueue = Volley.newRequestQueue(getApplicationContext());
String url = "http://forsitefloodapp.xyz/Func/Func_GetFloodReportsBarangay";
RequestFuture<JSONArray> future = RequestFuture.newFuture();
JsonArrayRequest request = new JsonArrayRequest(url,future,future);
requestQueue.add(request);
try {
JSONArray response = future.get(10, java.util.concurrent.TimeUnit.SECONDS);
int size = response.length();
if(size==0){
status="NO REPORTS";
}
else {
status="REPORTS DETECTED";
}
} catch (InterruptedException e) { status="Interuppted";
} catch (ExecutionException e) { status=e.toString();
} catch (TimeoutException e) { status="Timeout";
}
Log.i("MyJobIntentService", "Completed service @ " + status);
//Sends notification
}}
