Android实时抓取日志，生成文件

import java.io.BufferedReader;import java.io.File;import java.io.IOException;import java.io.InputStream;import java.io.InputStreamReader;import java.text.ParseException;import java.text.SimpleDateFormat;import java.util.ArrayList;import java.util.Calendar;import java.util.Date;import java.util.List;import java.util.Locale;import android.annotation.SuppressLint;import android.app.AlarmManager;import android.app.PendingIntent;import android.app.Service;import android.content.Context;import android.content.Intent;import android.os.Environment;import android.os.IBinder;import android.os.PowerManager;import android.os.PowerManager.WakeLock;import android.view.View;public class LogService extends Service{public View audioView;// public static boolean isRecoding = false;// private RecordMessage recordMessage;// add_log_beginprivate String LOG_PATH_SDCARD_DIR; // 日志文件在sdcard中的路径private static String ACTION_START_NEW_DAY_LOG = "action_start_new_day_log";private Process process;private WakeLock wakeLock;private SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HHmmss",Locale.getDefault());// 日志名称格式private String logServiceLogName = "Log.log";// 本服务输出的日志文件名称private boolean saveLog = true;// add_log_end@Overridepublic IBinder onBind(Intent intent){return null;}@Overridepublic void onCreate(){super.onCreate();initData();}private void initData(){if (saveLog){PowerManager pm = (PowerManager) getApplicationContext().getSystemService(Context.POWER_SERVICE);wakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK,getClass().getSimpleName());createLogDir();deployLogTask();new LogCollectorThread().start();}}/** * 日志收集 1.清除日志缓存 2.杀死应用程序已开启的Logcat进程防止多个进程写入一个日志文件 3.开启日志收集进程 4.处理日志文件 移动 * OR 删除 */class LogCollectorThread extends Thread{public LogCollectorThread(){super("LogCollectorThread");}@SuppressLint("Wakelock")@Overridepublic void run(){try{wakeLock.acquire(); // 唤醒手机clearLogCache();List orgProcessList = getAllProcess();List processInfoList = getProcessInfoList(orgProcessList);killLogcatProc(processInfoList);// 关闭与我的应用名同一个进程的logcat程序createLogCollector();Thread.sleep(1000);// 休眠，创建文件，然后处理文件，不然该文件还没创建，会影响文件删除deleteSDcardExpiredLog();wakeLock.release(); // 释放}catch (Exception e){e.printStackTrace();}}}/** * 去除文件的扩展类型（.log） *  * @param fileName * @return */private String getFileNameWithoutExtension(String fileName){return fileName.substring(0, fileName.indexOf("."));}/** * 判断sdcard上的日志文件是否可以删除 *  * @param createDateStr * @return */public boolean canDeleteSDLog(String createDateStr){boolean canDel = false;Calendar calendar = Calendar.getInstance();calendar.add(Calendar.DAY_OF_MONTH, -1 * 7);// 删除7天之前日志Date expiredDate = calendar.getTime();try{Date createDate = sdf.parse(createDateStr);canDel = createDate.before(expiredDate);}catch (ParseException e){canDel = false;}return canDel;}/** * 删除SD卡下过期的日志 */private void deleteSDcardExpiredLog(){File file = new File(LOG_PATH_SDCARD_DIR);if (file.isDirectory()){File[] allFiles = file.listFiles();if (allFiles != null){for (File logFile : allFiles){String fileName = logFile.getName();if (logServiceLogName.equals(fileName)){continue;}String createDateInfo = getFileNameWithoutExtension(fileName);if (canDeleteSDLog(createDateInfo)){logFile.delete();}}}}}/** * 根据当前的存储位置得到日志的绝对存储路径 *  * @return */public String getLogPath(){createLogDir();String logFileName = sdf.format(new Date()) + ".log";// 日志文件名称return LOG_PATH_SDCARD_DIR + File.separator + logFileName;}/** * 开始收集日志信息 */public void createLogCollector(){List commandList = new ArrayList();commandList.add("logcat");commandList.add("-f");commandList.add(getLogPath());commandList.add("-v");commandList.add("time");commandList.add("*:I");// commandList.add("*:E");// 过滤所有的错误信息// 过滤指定TAG的信息// commandList.add("MyAPP:V");// commandList.add("*:S");try{process = Runtime.getRuntime().exec(commandList.toArray(new String[commandList.size()]));}catch (Exception e){e.printStackTrace();}}/** * 获取本程序的用户名称 *  * @param packName * @param allProcList * @return */private String getAppUser(String packName, List allProcList){for (ProcessInfo processInfo : allProcList){if (processInfo.name.equals(packName)){return processInfo.user;}}return null;}/** * 关闭由本程序开启的logcat进程： 根据用户名称杀死进程(如果是本程序进程开启的Logcat收集进程那么两者的USER一致) * 如果不关闭会有多个进程读取logcat日志缓存信息写入日志文件 *  * @param allProcList * @return */private void killLogcatProc(List allProcList){if (process != null){process.destroy();}String packName = this.getPackageName();String myUser = getAppUser(packName, allProcList);for (ProcessInfo processInfo : allProcList){if (processInfo.name.toLowerCase(Locale.getDefault()).equals("logcat")&& processInfo.user.equals(myUser)){android.os.Process.killProcess(Integer.parseInt(processInfo.pid));}}}class ProcessInfo{public String user;public String pid;public String ppid;public String name;@Overridepublic String toString(){String str = "user=" + user + " pid=" + pid + " ppid=" + ppid+ " name=" + name;return str;}}/** * 根据ps命令得到的内容获取PID，User，name等信息 *  * @param orgProcessList * @return */private List getProcessInfoList(List orgProcessList){List procInfoList = new ArrayList();for (int i = 1; i < orgProcessList.size(); i++){String processInfo = orgProcessList.get(i);String[] proStr = processInfo.split(" ");// USER PID PPID VSIZE RSS WCHAN PC NAME// root 1 0 416 300 c00d4b28 0000cd5c S /initList orgInfo = new ArrayList();for (String str : proStr){if (!"".equals(str)){orgInfo.add(str);}}if (orgInfo.size() == 9){ProcessInfo pInfo = new ProcessInfo();pInfo.user = orgInfo.get(0);pInfo.pid = orgInfo.get(1);pInfo.ppid = orgInfo.get(2);pInfo.name = orgInfo.get(8);procInfoList.add(pInfo);}}return procInfoList;}/** * 运行PS命令得到进程信息 *  * @return USER PID PPID VSIZE RSS WCHAN PC NAME root 1 0 416 300 c00d4b28 *         0000cd5c S /init */private List getAllProcess(){List orgProcList = new ArrayList();Process proc = null;try{proc = Runtime.getRuntime().exec("ps");StreamConsumer outputConsumer = new StreamConsumer(proc.getInputStream(), orgProcList);outputConsumer.start();proc.waitFor();}catch (Exception e){}finally{try{proc.destroy();}catch (Exception e){}}return orgProcList;}class StreamConsumer extends Thread{InputStream is;List list;StreamConsumer(InputStream is, List list){this.is = is;this.list = list;}public void run(){try{InputStreamReader isr = new InputStreamReader(is);BufferedReader br = new BufferedReader(isr);String line = null;while ((line = br.readLine()) != null){if (list != null){list.add(line);}}}catch (IOException ioe){ioe.printStackTrace();}}}/** * 每次记录日志之前先清除日志的缓存, 不然会在两个日志文件中记录重复的日志 */private void clearLogCache(){Process proc = null;List commandList = new ArrayList();commandList.add("logcat");commandList.add("-c");try{proc = Runtime.getRuntime().exec(commandList.toArray(new String[commandList.size()]));proc.waitFor();}catch (Exception e){e.printStackTrace();}finally{try{proc.destroy();}catch (Exception e){e.printStackTrace();}}}/** * 部署日志任务，每天凌晨开启收集 */private void deployLogTask(){Intent intent = new Intent(ACTION_START_NEW_DAY_LOG);PendingIntent sender = PendingIntent.getBroadcast(this, 0, intent, 0);Calendar calendar = Calendar.getInstance();calendar.add(Calendar.DAY_OF_MONTH, 1);calendar.set(Calendar.HOUR_OF_DAY, 0);calendar.set(Calendar.MINUTE, 0);calendar.set(Calendar.SECOND, 0);// 部署定时任务AlarmManager am = (AlarmManager) getSystemService(ALARM_SERVICE);am.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(),AlarmManager.INTERVAL_DAY, sender);}/** * 创建日志输出文件 */private void createLogDir(){LOG_PATH_SDCARD_DIR = Environment.getExternalStorageDirectory().getAbsolutePath()+ File.separator+ File.separator+ "log";File file = new File(LOG_PATH_SDCARD_DIR);if (!file.isDirectory()){file.mkdirs();}}// add_log_end@Overridepublic void onDestroy(){super.onDestroy();}}
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