【Android studio】service在app直接退出下，整体输出情况，实现开机自启动，一直后台运行

package com.qht.b; import android.app.Service; import android.content.Context; import android.content.Intent; import android.content.pm.PackageManager; import android.net.Uri; import android.os.Build; import android.os.IBinder; import android.util.Log; import java.io.IOException; import java.net.DatagramPacket; import java.net.DatagramSocket; import java.net.SocketException; import java.net.SocketTimeoutException; import java.util.Calendar; import java.util.Timer; import java.util.TimerTask; public class MonitorService extends Service { public static final String CLASS_NAME = "MonitorService"; private Thread thread; private DatagramSocket socket = null; private Context m_context; private long lastTimeMillis = 0; Timer timer = null; TimerTask task; boolean m_btimerisStart; public MonitorService() { } @Override public IBinder onBind(Intent intent) { Log.d(CLASS_NAME, "onBind !!"); return null; } @Override public void onCreate() { super.onCreate(); m_context = this; Log.d(CLASS_NAME, "onCreate !!"); lastTimeMillis = 0; thread=new Thread(new Runnable() { @Override public void run() { try { System.out.println("监听端口16667"); socket = new DatagramSocket(16667); socket.setSoTimeout(5000); } catch (Exception e) { e.printStackTrace(); } while (true) { byte data[] = new byte[1024]; DatagramPacket packet = new DatagramPacket(data, data.length); try { socket.receive(packet); } catch (SocketTimeoutException e) { System.out.println("socket 10s 超时:" + e.getMessage()); } catch (SocketException e) { System.out.println("socket SocketException:" + e.getMessage()); e.printStackTrace(); } catch (IOException e) { System.out.println("socket IOException:" + e.getMessage()); e.printStackTrace(); } String result = new String(packet.getData(), packet.getOffset(), packet.getLength()); //校验包 if (result.equals("hertbeat")) { lastTimeMillis = System.currentTimeMillis(); System.out.println("rec : hertbeat"); }else if (result.equals("login")) { if (m_btimerisStart) { System.out.println("重复login!!!"); continue; } //login lastTimeMillis = System.currentTimeMillis(); startTimer(); System.out.println("rec : login"); } else if (result.equals("logout")) { //退出取消，等待login再开启 System.out.println("rec : logout timer.cancel()"); stopTimer(); } else if (result.equals("anr")) { //退出取消，等待login再开启 System.out.println("rec : anr restartApp"); restartApp(); } } } }); thread.start(); } @Override public void onStart(Intent intent, int startId) { super.onStart(intent, startId); Log.d(CLASS_NAME, "onStart !!"); } private void startTimer(){ m_btimerisStart = true; if (timer == null) { timer = new Timer(); } if (task == null) { task = new TimerTask() { @Override public void run() { System.out.println("run TimerTask"); if (lastTimeMillis != 0 && System.currentTimeMillis()- lastTimeMillis > 2000) { System.out.println("失去心跳，拉起APPlastTimeMillis :" + lastTimeMillis + ":" + (Calendar.getInstance().getTimeInMillis() - lastTimeMillis) ); // 心跳超时，杀死并拉起 restartApp(); } } }; } if(timer != null && task != null ) timer.schedule(task,0,1000); } private void restartApp() { SuUtil.kill(ConstantUtil.PACKAGE_NAME); try { Thread.sleep(300); } catch (InterruptedException e) { e.printStackTrace(); } PackageManager localObject = m_context.getPackageManager(); if (PackageUtil.checkPackInfo(m_context, ConstantUtil.PACKAGE_NAME)) { Log.i(CLASS_NAME, "find package, ready to lanunch! "+ConstantUtil.PACKAGE_NAME); if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.CUPCAKE) { Log.i(CLASS_NAME, "Build.VERSION.SDK_INT >= Build.VERSION_CODES.CUPCAKE "+ (int)Build.VERSION.SDK_INT); // m_context.startActivity((localObject).getLaunchIntentForPackage(ConstantUtil.PACKAGE_NAME)); Intent action = new Intent(Intent.ACTION_VIEW); action.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); StringBuilder builder = new StringBuilder(); builder.append("nova://aodingplayer"); action.setData(Uri.parse(builder.toString())); startActivity(action); } } else { Log.i(CLASS_NAME, "not find package!" + ConstantUtil.PACKAGE_NAME); } lastTimeMillis = 0; stopTimer(); } private void stopTimer(){ m_btimerisStart = false; if (timer != null) { timer.cancel(); timer = null; } if (task != null) { task.cancel(); task = null; } } @Override public void onDestroy() { super.onDestroy(); Log.d(CLASS_NAME, "onDestroy !!"); stopTimer(); } }