android将log保存到文件

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package com.example.pay.log;import java.io.BufferedReader;import java.io.File;import java.io.FileInputStream;import java.io.FileOutputStream;import java.io.IOException;import java.io.InputStream;import java.io.InputStreamReader;import java.io.OutputStreamWriter;import java.text.ParseException;import java.text.SimpleDateFormat;import java.util.ArrayList;import java.util.Arrays;import java.util.Calendar;import java.util.Comparator;import java.util.Date;import java.util.List;import android.app.AlarmManager;import android.app.PendingIntent;import android.app.Service;import android.content.BroadcastReceiver;import android.content.Context;import android.content.Intent;import android.content.IntentFilter;import android.os.Environment;import android.os.IBinder;import android.os.PowerManager;import android.os.PowerManager.WakeLock;import android.util.Log;/** * 日志服务，日志默认会存储在SDcar里如果没有SDcard会存储在内存中的安装目录下面。 1.本服务默认在SDcard中每天生成一个日志文件, * 2.如果有SDCard的话会将之前内存中的文件拷贝到SDCard中 3.如果没有SDCard，在安装目录下只保存当前在写日志 * 4.SDcard的装载卸载动作会在步骤2,3中切换 5.SDcard中的日志文件只保存7天 *  * @author Administrator *  */public class LogService extends Service {private static final String TAG = "LogService";private static final int MEMORY_LOG_FILE_MAX_SIZE = 10 * 1024 * 1024; // 内存中日志文件最大值，10Mprivate static final int MEMORY_LOG_FILE_MONITOR_INTERVAL = 10 * 60 * 1000; // 内存中的日志文件大小监控时间间隔，10分钟private static final int SDCARD_LOG_FILE_SAVE_DAYS = 7; // sd卡中日志文件的最多保存天数private String LOG_PATH_MEMORY_DIR; // 日志文件在内存中的路径(日志文件在安装目录中的路径)private String LOG_PATH_SDCARD_DIR; // 日志文件在sdcard中的路径@SuppressWarnings("unused")private String LOG_SERVICE_LOG_PATH; // 本服务产生的日志，记录日志服务开启失败信息private final int SDCARD_TYPE = 0; // 当前的日志记录类型为存储在SD卡下面private final int MEMORY_TYPE = 1; // 当前的日志记录类型为存储在内存中private int CURR_LOG_TYPE = SDCARD_TYPE; // 当前的日志记录类型private String CURR_INSTALL_LOG_NAME; // 如果当前的日志写在内存中，记录当前的日志文件名称private String logServiceLogName = "Log.log";// 本服务输出的日志文件名称private SimpleDateFormat myLogSdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");private OutputStreamWriter writer;private SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HHmmss");// 日志名称格式private Process process;private WakeLock wakeLock;private SDStateMonitorReceiver sdStateReceiver; // SDcard状态监测private LogTaskReceiver logTaskReceiver;/* * 是否正在监测日志文件大小； 如果当前日志记录在SDcard中则为false 如果当前日志记录在内存中则为true */private boolean logSizeMoniting = false;private static String MONITOR_LOG_SIZE_ACTION = "MONITOR_LOG_SIZE"; // 日志文件监测actionprivate static String SWITCH_LOG_FILE_ACTION = "SWITCH_LOG_FILE_ACTION"; // 切换日志文件action@Overridepublic IBinder onBind(Intent intent) {return null;}@Overridepublic void onCreate() {super.onCreate();init();register();deploySwitchLogFileTask();new LogCollectorThread().start();}private void init() {LOG_PATH_MEMORY_DIR = getFilesDir().getAbsolutePath() + File.separator+ "log";LOG_SERVICE_LOG_PATH = LOG_PATH_MEMORY_DIR + File.separator+ logServiceLogName;LOG_PATH_SDCARD_DIR = Environment.getExternalStorageDirectory().getAbsolutePath()+ File.separator+ "MyApp"+ File.separator+ "log";createLogDir();/* ****************************************************** * try { writer = new OutputStreamWriter(new FileOutputStream( * LOG_SERVICE_LOG_PATH, true)); } catch (FileNotFoundException e) { * Log.e(TAG, e.getMessage(), e); } * ***************************************************** */PowerManager pm = (PowerManager) getApplicationContext().getSystemService(Context.POWER_SERVICE);wakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, TAG);CURR_LOG_TYPE = getCurrLogType();Log.i(TAG, "LogService onCreate");}private void register() {IntentFilter sdCarMonitorFilter = new IntentFilter();sdCarMonitorFilter.addAction(Intent.ACTION_MEDIA_MOUNTED);sdCarMonitorFilter.addAction(Intent.ACTION_MEDIA_UNMOUNTED);sdCarMonitorFilter.addDataScheme("file");sdStateReceiver = new SDStateMonitorReceiver();registerReceiver(sdStateReceiver, sdCarMonitorFilter);IntentFilter logTaskFilter = new IntentFilter();logTaskFilter.addAction(MONITOR_LOG_SIZE_ACTION);logTaskFilter.addAction(SWITCH_LOG_FILE_ACTION);logTaskReceiver = new LogTaskReceiver();registerReceiver(logTaskReceiver, logTaskFilter);}/** * 获取当前应存储在内存中还是存储在SDCard中 *  * @return */public int getCurrLogType() {if (!Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {return MEMORY_TYPE;} else {return SDCARD_TYPE;}}/** * 部署日志切换任务，每天凌晨切换日志文件 */private void deploySwitchLogFileTask() {Intent intent = new Intent(SWITCH_LOG_FILE_ACTION);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);// 部署任务AlarmManager am = (AlarmManager) getSystemService(ALARM_SERVICE);am.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(),AlarmManager.INTERVAL_DAY, sender);recordLogServiceLog("deployNextTask succ,next task time is:"+ myLogSdf.format(calendar.getTime()));}/** * 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");Log.d(TAG, "LogCollectorThread is create");}@Overridepublic void run() {try {wakeLock.acquire(); // 唤醒手机clearLogCache();List<String> orgProcessList = getAllProcess();List<ProcessInfo> processInfoList = getProcessInfoList(orgProcessList);killLogcatProc(processInfoList);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handleLog();wakeLock.release(); // 释放} catch (Exception e) {e.printStackTrace();recordLogServiceLog(Log.getStackTraceString(e));}}}/** * 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<String> commandList = new ArrayList<String>();commandList.add("logcat");commandList.add("-c");try {proc = Runtime.getRuntime().exec(commandList.toArray(new String[commandList.size()]));StreamConsumer errorGobbler = new StreamConsumer(proc.getErrorStream());StreamConsumer outputGobbler = new StreamConsumer(proc.getInputStream());errorGobbler.start();outputGobbler.start();if (proc.waitFor() != 0) {Log.e(TAG, " clearLogCache proc.waitFor() != 0");recordLogServiceLog("clearLogCache clearLogCache proc.waitFor() != 0");}} catch (Exception e) {Log.e(TAG, "clearLogCache failed", e);recordLogServiceLog("clearLogCache failed");} finally {try {proc.destroy();} catch (Exception e) {Log.e(TAG, "clearLogCache failed", e);recordLogServiceLog("clearLogCache failed");}}}/** * 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<ProcessInfo> allProcList) {if (process != null) {process.destroy();}String packName = this.getPackageName();String myUser = getAppUser(packName, allProcList);/* * recordLogServiceLog("app user is:"+myUser); * recordLogServiceLog("========================"); for (ProcessInfo * processInfo : allProcList) { * recordLogServiceLog(processInfo.toString()); } * recordLogServiceLog("========================"); */for (ProcessInfo processInfo : allProcList) {if (processInfo.name.toLowerCase().equals("logcat")&& processInfo.user.equals(myUser)) {android.os.Process.killProcess(Integer.parseInt(processInfo.pid));// recordLogServiceLog("kill another logcat process success,the process info is:"// + processInfo);}}}/** * 获取本程序的用户名称 *  * @param packName * @param allProcList * @return */private String getAppUser(String packName, List<ProcessInfo> allProcList) {for (ProcessInfo processInfo : allProcList) {if (processInfo.name.equals(packName)) {return processInfo.user;}}return null;}/** * 根据ps命令得到的内容获取PID，User，name等信息 *  * @param orgProcessList * @return */private List<ProcessInfo> getProcessInfoList(List<String> orgProcessList) {List<ProcessInfo> procInfoList = new ArrayList<ProcessInfo>();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<String> orgInfo = new ArrayList<String>();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<String> getAllProcess() {List<String> orgProcList = new ArrayList<String>();Process proc = null;try {proc = Runtime.getRuntime().exec("ps");StreamConsumer errorConsumer = new StreamConsumer(proc.getErrorStream());StreamConsumer outputConsumer = new StreamConsumer(proc.getInputStream(), orgProcList);errorConsumer.start();outputConsumer.start();if (proc.waitFor() != 0) {Log.e(TAG, "getAllProcess proc.waitFor() != 0");recordLogServiceLog("getAllProcess proc.waitFor() != 0");}} catch (Exception e) {Log.e(TAG, "getAllProcess failed", e);recordLogServiceLog("getAllProcess failed");} finally {try {proc.destroy();} catch (Exception e) {Log.e(TAG, "getAllProcess failed", e);recordLogServiceLog("getAllProcess failed");}}return orgProcList;}/** * 开始收集日志信息 */public void createLogCollector() {String logFileName = sdf.format(new Date()) + ".log";// 日志文件名称List<String> commandList = new ArrayList<String>();commandList.add("logcat");commandList.add("-f");// commandList.add(LOG_PATH_INSTALL_DIR + File.separator + logFileName);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()]));recordLogServiceLog("start collecting the log,and log name is:"+ logFileName);// process.waitFor();} catch (Exception e) {Log.e(TAG, "CollectorThread == >" + e.getMessage(), e);recordLogServiceLog("CollectorThread == >" + e.getMessage());}}/** * 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if (CURR_LOG_TYPE == MEMORY_TYPE) {CURR_INSTALL_LOG_NAME = logFileName;Log.d(TAG, "Log stored in memory, the path is:"+ LOG_PATH_MEMORY_DIR + File.separator + logFileName);return LOG_PATH_MEMORY_DIR + File.separator + logFileName;} else {CURR_INSTALL_LOG_NAME = null;Log.d(TAG, "Log stored in SDcard, the path is:"+ LOG_PATH_SDCARD_DIR + File.separator + logFileName);return LOG_PATH_SDCARD_DIR + File.separator + logFileName;}}/** * 处理日志文件 1.如果日志文件存储位置切换到内存中，删除除了正在写的日志文件 并且部署日志大小监控任务，控制日志大小不超过规定值 * 2.如果日志文件存储位置切换到SDCard中，删除7天之前的日志，移 动所有存储在内存中的日志到SDCard中，并将之前部署的日志大小 监控取消 */public void handleLog() {if (CURR_LOG_TYPE == MEMORY_TYPE) {deployLogSizeMonitorTask();deleteMemoryExpiredLog();} else {moveLogfile();cancelLogSizeMonitorTask();deleteSDcardExpiredLog();}}/** * 部署日志大小监控任务 */private void deployLogSizeMonitorTask() {if (logSizeMoniting) { // 如果当前正在监控着，则不需要继续部署return;}logSizeMoniting = true;Intent intent = new Intent(MONITOR_LOG_SIZE_ACTION);PendingIntent sender = PendingIntent.getBroadcast(this, 0, intent, 0);AlarmManager am = (AlarmManager) getSystemService(ALARM_SERVICE);am.setRepeating(AlarmManager.RTC_WAKEUP, System.currentTimeMillis(),MEMORY_LOG_FILE_MONITOR_INTERVAL, sender);Log.d(TAG, "deployLogSizeMonitorTask() succ !");// recordLogServiceLog("deployLogSizeMonitorTask() succ ,start time is "// + calendar.getTime().toLocaleString());}/** * 取消部署日志大小监控任务 */private void cancelLogSizeMonitorTask() {logSizeMoniting = false;AlarmManager am = (AlarmManager) getSystemService(ALARM_SERVICE);Intent intent = new Intent(MONITOR_LOG_SIZE_ACTION);PendingIntent sender = PendingIntent.getBroadcast(this, 0, intent, 0);am.cancel(sender);Log.d(TAG, "canelLogSizeMonitorTask() succ");}/** * 检查日志文件大小是否超过了规定大小 如果超过了重新开启一个日志收集进程 */private void checkLogSize() {if (CURR_INSTALL_LOG_NAME != null && !"".equals(CURR_INSTALL_LOG_NAME)) {String path = LOG_PATH_MEMORY_DIR + File.separator+ CURR_INSTALL_LOG_NAME;File file = new File(path);if (!file.exists()) {return;}Log.d(TAG, "checkLog() ==> The size of the log is too big?");if (file.length() >= MEMORY_LOG_FILE_MAX_SIZE) {Log.d(TAG, "The log's size is too big!");new LogCollectorThread().start();}}}/** * 创建日志目录 */private void createLogDir() {File file = new File(LOG_PATH_MEMORY_DIR);boolean mkOk;if (!file.isDirectory()) {mkOk = file.mkdirs();if (!mkOk) {mkOk = file.mkdirs();}}/* ************************************ * file = new File(LOG_SERVICE_LOG_PATH); if (!file.exists()) { try { * mkOk = file.createNewFile(); if (!mkOk) { file.createNewFile(); } } * catch (IOException e) { Log.e(TAG, e.getMessage(), e); } } * *********************************** */if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {file = new File(LOG_PATH_SDCARD_DIR);if (!file.isDirectory()) {mkOk = file.mkdirs();if (!mkOk) {recordLogServiceLog("move file failed,dir is not created succ");return;}}}}/** * 将日志文件转移到SD卡下面 */private void moveLogfile() {if (!Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {// recordLogServiceLog("move file failed, sd card does not mount");return;}File file = new File(LOG_PATH_SDCARD_DIR);if (!file.isDirectory()) {boolean mkOk = file.mkdirs();if (!mkOk) {// recordLogServiceLog("move file failed,dir is not created succ");return;}}file = new File(LOG_PATH_MEMORY_DIR);if (file.isDirectory()) {File[] allFiles = file.listFiles();for (File logFile : allFiles) {String fileName = logFile.getName();if (logServiceLogName.equals(fileName)) {continue;}// String createDateInfo =// getFileNameWithoutExtension(fileName);boolean isSucc = copy(logFile, new File(LOG_PATH_SDCARD_DIR+ File.separator + fileName));if (isSucc) {logFile.delete();// recordLogServiceLog("move file success,log name is:"+fileName);}}}}/** * 删除内存下过期的日志 */private void deleteSDcardExpiredLog() {File file = new File(LOG_PATH_SDCARD_DIR);if (file.isDirectory()) {File[] allFiles = file.listFiles();for (File logFile : allFiles) {String fileName = logFile.getName();if (logServiceLogName.equals(fileName)) {continue;}String createDateInfo = getFileNameWithoutExtension(fileName);if (canDeleteSDLog(createDateInfo)) {logFile.delete();Log.d(TAG, "delete expired log success,the log path is:"+ logFile.getAbsolutePath());}}}}/** * 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 * SDCARD_LOG_FILE_SAVE_DAYS);// 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) {Log.e(TAG, e.getMessage(), e);canDel = false;}return canDel;}/** * 删除内存中的过期日志，删除规则： 除了当前的日志和离当前时间最近的日志保存其他的都删除 */private void deleteMemoryExpiredLog() {File file = new File(LOG_PATH_MEMORY_DIR);if (file.isDirectory()) {File[] allFiles = file.listFiles();Arrays.sort(allFiles, new FileComparator());for (int i = 0; i < allFiles.length - 2; i++) { // "-2"保存最近的两个日志文件File _file = allFiles[i];if (logServiceLogName.equals(_file.getName())|| _file.getName().equals(CURR_INSTALL_LOG_NAME)) {continue;}_file.delete();Log.d(TAG, "delete expired log success,the log path is:"+ _file.getAbsolutePath());}}}/** * 拷贝文件 *  * @param source * @param target * @return */private boolean copy(File source, File target) {FileInputStream in = null;FileOutputStream out = null;try {if (!target.exists()) {boolean createSucc = target.createNewFile();if (!createSucc) {return false;}}in = new FileInputStream(source);out = new FileOutputStream(target);byte[] buffer = new byte[8 * 1024];int count;while ((count = in.read(buffer)) != -1) {out.write(buffer, 0, count);}return true;} catch (Exception e) {e.printStackTrace();Log.e(TAG, e.getMessage(), e);recordLogServiceLog("copy file fail");return false;} finally {try {if (in != null) {in.close();}if (out != null) {out.close();}} catch (IOException e) {e.printStackTrace();Log.e(TAG, e.getMessage(), e);recordLogServiceLog("copy file fail");return false;}}}/** * 记录日志服务的基本信息 防止日志服务有错，在LogCat日志中无法查找 此日志名称为Log.log *  * @param msg */private void recordLogServiceLog(String msg) {if (writer != null) {try {Date time = new Date();writer.write(myLogSdf.format(time) + " : " + msg);writer.write("\n");writer.flush();} catch (IOException e) {e.printStackTrace();Log.e(TAG, e.getMessage(), e);}}}/** * 去除文件的扩展类型（.log） *  * @param fileName * @return */private String getFileNameWithoutExtension(String fileName) {return fileName.substring(0, fileName.indexOf("."));}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;}}class StreamConsumer extends Thread {InputStream is;List<String> list;StreamConsumer(InputStream is) {this.is = is;}StreamConsumer(InputStream is, List<String> 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();}}}/** * 监控SD卡状态 *  * @author Administrator *  */class SDStateMonitorReceiver extends BroadcastReceiver {public void onReceive(Context context, Intent intent) {if (Intent.ACTION_MEDIA_UNMOUNTED.equals(intent.getAction())) { // 存储卡被卸载if (CURR_LOG_TYPE == SDCARD_TYPE) {Log.d(TAG, "SDcar is UNMOUNTED");CURR_LOG_TYPE = MEMORY_TYPE;new LogCollectorThread().start();}} else { // 存储卡被挂载if (CURR_LOG_TYPE == MEMORY_TYPE) {Log.d(TAG, "SDcar is MOUNTED");CURR_LOG_TYPE = SDCARD_TYPE;new LogCollectorThread().start();}}}}/** * 日志任务接收 切换日志，监控日志大小 *  * @author Administrator *  */class LogTaskReceiver extends BroadcastReceiver {public void onReceive(Context context, Intent intent) {String action = intent.getAction();if (SWITCH_LOG_FILE_ACTION.equals(action)) {new LogCollectorThread().start();} else if (MONITOR_LOG_SIZE_ACTION.equals(action)) {checkLogSize();}}}class FileComparator implements Comparator<File> {public int compare(File file1, File file2) {if (logServiceLogName.equals(file1.getName())) {return -1;} else if (logServiceLogName.equals(file2.getName())) {return 1;}String createInfo1 = getFileNameWithoutExtension(file1.getName());String createInfo2 = getFileNameWithoutExtension(file2.getName());try {Date create1 = sdf.parse(createInfo1);Date create2 = sdf.parse(createInfo2);if (create1.before(create2)) {return -1;} else {return 1;}} catch (ParseException e) {return 0;}}}@Overridepublic void onDestroy() {super.onDestroy();recordLogServiceLog("LogService onDestroy");if (writer != null) {try {writer.close();} catch (IOException e) {e.printStackTrace();}}if (process != null) {process.destroy();}unregisterReceiver(sdStateReceiver);unregisterReceiver(logTaskReceiver);}}