给大家分享一个项目中用到的日志统计并提交服务器的日志工具类.
通过过得当前app的PID，采用命令行的方式实用logcat工具过滤日志。
代码区：
package org.and.util; import java.io.BufferedReader; import java.io.File; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStreamReader; import java.util.ArrayList; import java.util.List; import android.content.Context; import android.os.Environment; /** * TODO: log日志统计保存、上传-工具类 * * @author hljdrl@gmail.com * @date 2012-8-27 上午11:43:52 */ public class LogcatHelper { private static LogcatHelper INSTANCE = null; private static String PATH_LOGCAT ; private LogDumper mLogDumper = null; private Context mContext; private int mPId; /** * 初始化目录 * */ public static void init(Context context) { StringBuffer LogPath = new StringBuffer(); LogPath.append(Environment.getExternalStorageDirectory()); LogPath.append("/Android/data/"); LogPath.append(context.getPackageName()).append("/"); LogPath.append("logs").append("/"); PATH_LOGCAT = LogPath.toString(); // File file =new File(PATH_LOGCAT); if(!file.exists()){ file.mkdirs(); } } public static LogcatHelper getInstance(Context context) { if(INSTANCE == null){ INSTANCE = new LogcatHelper(context); } return INSTANCE; } private LogcatHelper(Context context) { mContext = context; mPId = android.os.Process.myPid(); } public void start() { if(mLogDumper==null){ mLogDumper = new LogDumper(String.valueOf(mPId),PATH_LOGCAT); mLogDumper.start(); } } public void stop() { if(mLogDumper!=null){ mLogDumper.stopLogs(); mLogDumper = null; } } public void sendLogMessage(Context context,String user) { if(mLogDumper!=null){ mLogDumper.setLogFileLock(true); String file = mLogDumper.getLogFileName(); File sendFile = new File(file); if(sendFile.exists() && sendFile.length()>2000){ try{ EmailHelper.sendMail(context, user, file); }catch(Exception ex){ ex.printStackTrace(); } File newFile = new File(file); try { newFile.createNewFile(); } catch (IOException e) { e.printStackTrace(); } } mLogDumper.setLogFileLock(false); } } private class LogDumper extends Thread{ String fileName; private Process logcatProc; private BufferedReader mReader = null; private boolean mRunning = false; String cmds=null; private final String mPID; private FileOutputStream out = null; private List<String> logsMessage = new ArrayList<String>(); private boolean mLogFileLock = false; private String logFileName; public void setLogFileLock(boolean lock){ mLogFileLock = lock; } public boolean isLogFileLock() { return mLogFileLock; } public LogDumper(String pid,String file) { mPID = String.valueOf(pid); fileName = file; File mFile = new File(fileName,"error.txt"); if(!mFile.exists()){ try { mFile.createNewFile(); } catch (IOException e) { e.printStackTrace(); } } try { logFileName = mFile.toString(); out = new FileOutputStream(mFile,true); } catch (FileNotFoundException e) { e.printStackTrace(); } /** * 日志等级：*:v , *:d , *:w , *:e , *:f , *:s * 显示当前mPID程序的 E和W等级的日志. * */ cmds ="logcat *:e *:w | grep "("+mPID+")""; } public String getLogFileName() { return logFileName; } public void stopLogs() { mRunning = false; } private boolean checkFileMaxSize(String file){ File sizefile = new File(file); if(sizefile.exists()){ //1.5MB if(sizefile.length()>1572864){ return true; } else { return false; } }else { return false; } } @Override public void run() { System.out.println("LogCatHelper'"); mRunning = true; try { logcatProc = Runtime.getRuntime() .exec(cmds); mReader = new BufferedReader(new InputStreamReader( logcatProc.getInputStream()), 1024); String line = null; while (mRunning && (line = mReader.readLine()) != null) { if (!mRunning) { break; } if (line.length() == 0) { continue; } synchronized (out) { if (out != null) { boolean maxSize = checkFileMaxSize(getLogFileName()); if(maxSize){ //文件大小超过1.5mb sendLogMessage(mContext, DeviceHelper.getInstance(mContext).getImei()); } if (isLogFileLock()) { if(line.contains(mPID)){ logsMessage.add(line.getBytes() + " "); } } else { if(logsMessage.size()>0){ for(String _log:logsMessage){ out.write(_log.getBytes()); } logsMessage.clear(); } /** * 再次过滤日志，筛选当前日志中有 mPID 则是当前程序的日志. * */ if(line.contains(mPID)){ out.write(line.getBytes()); out.write(" ".getBytes()); } } } } } } catch (IOException e) { e.printStackTrace(); return; } finally { if (logcatProc != null) { logcatProc.destroy(); logcatProc = null; } if (mReader != null) { try { mReader.close(); mReader = null; } catch (IOException e) { e.printStackTrace(); } } if(out!=null){ try { out.close(); } catch (IOException e) { e.printStackTrace(); } out = null; } } } } }