package com.anyun.basecommonlib; /** * anyunProject(20190906) * Created by lzw on 2019/9/6. 17:23:17 * 邮箱：632393724@qq.com * All Rights Saved! Chongqing AnYun Tech co. LTD */ import android.content.Context; import android.os.Environment; import android.text.TextUtils; import android.util.Log; import java.io.BufferedWriter; import java.io.File; import java.io.FileWriter; import java.io.IOException; import java.text.SimpleDateFormat; import java.util.Calendar; import java.util.Date; import java.util.concurrent.Executors; import java.util.regex.Matcher; import java.util.regex.Pattern; public class MyLog { private static final String TAG = "AYJiaKao"; // 日志文件在sdcard中的路径 private static String MYLOG_PATH_SDCARD_DIR = "/sdcard/JiaKaolog"; private static Boolean MYLOG_SWITCH = true; // 日志文件总开关 private static Boolean MYLOG_WRITE_TO_FILE = true;// 日志写入文件开关 private static File file; // 输入日志类型，w代表只输出告警信息等，v代表输出所有信息 private static char MYLOG_TYPE = 'v'; // 日志文件在sdcard中的路径 private static int SDCARD_LOG_FILE_SAVE_DAYS = 7;// sd卡中日志文件的最多保存天数 private static String MYLOGFILEName = "Log.txt";// 本类输出的日志文件名称 private static SimpleDateFormat myLogSdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");// 日志的输出格式 private static SimpleDateFormat logfile = new SimpleDateFormat("yyyy-MM-dd");// 日志文件格式 public Context context; public static void w(String tag, Object msg) { // 警告信息 log(tag, msg.toString(), 'w'); } public static void e(String tag, Object msg) { // 错误信息 log(tag, msg.toString(), 'e'); } public static void d(String tag, Object msg) {// 调试信息 log(tag, msg.toString(), 'd'); } public static void i(String tag, Object msg) {// log(tag, msg.toString(), 'i'); } public static void i(Object msg) {// log(TAG, msg.toString(), 'i'); } public static void v(String tag, Object msg) { log(tag, msg.toString(), 'v'); } public static void w(String tag, String text) { log(tag, text, 'w'); } public static void e(String tag, String text) { log(tag, text, 'e'); } public static void d(String tag, String text) { log(tag, text, 'd'); } public static void i(String tag, String text) { log(tag, text, 'i'); } public static void i(String text) { log(TAG, text, 'i'); } public static void v(String tag, String text) { log(tag, text, 'v'); } /** * 根据tag, msg和等级，输出日志 * * @param tag * @param msg * @param level */ private static void log(final String tag, final String msg, final char level) { if (MYLOG_SWITCH) {//日志文件总开关 if ('e' == level && ('e' == MYLOG_TYPE || 'v' == MYLOG_TYPE)) { // 输出错误信息 Log.e(tag, msg); } else if ('w' == level && ('w' == MYLOG_TYPE || 'v' == MYLOG_TYPE)) { Log.w(tag, msg); } else if ('d' == level && ('d' == MYLOG_TYPE || 'v' == MYLOG_TYPE)) { Log.d(tag, msg); } else if ('i' == level && ('d' == MYLOG_TYPE || 'v' == MYLOG_TYPE)) { Log.i(tag, msg); } else { Log.v(tag, msg); } if (MYLOG_WRITE_TO_FILE)//日志写入文件开关 // Executors.newSingleThreadExecutor().execute(new Runnable() { // @Override // public void run() { writeLogtoFile( tag, msg); // } // }); } } public static void createIfNotExist() { String needWriteFiel = logfile.format(System.currentTimeMillis()); Log.i(TAG, "createIfNotExist: " + needWriteFiel); File dirsFile = new File(MYLOG_PATH_SDCARD_DIR); if (!dirsFile.exists()) { dirsFile.mkdirs(); } //Log.i("创建文件","创建文件"); file = new File(dirsFile.toString(), needWriteFiel + MYLOGFILEName);// MYLOG_PATH_SDCARD_DIR if (!file.exists()) { try { //在指定的文件夹中创建文件 file.createNewFile(); } catch (Exception e) { } } } /** * 打开日志文件并写入日志 * * @param mylogtype * @param tag * @param text */ private static void writeLogtoFile(String mylogtype, final String tag, final String text) {// 新建或打开日志文件 String needWriteMessage = myLogSdf.format(System.currentTimeMillis()) + " " + tag + " " + text; try { /**后面这个参数代表是不是要接上文件中原来的数据，不进行覆盖**/ if (file != null){ if (!file.getName().contains(logfile.format(System.currentTimeMillis()))){ Log.i(TAG, "writeLogtoFile: 当前file不是当前日期的，置为null"); file = null; } } if (file == null) { Log.i(TAG, "writeLogtoFile: file==null"); createIfNotExist(); } FileWriter filerWriter = new FileWriter(file, true); BufferedWriter bufWriter = new BufferedWriter(filerWriter); bufWriter.write(needWriteMessage); bufWriter.newLine(); bufWriter.close(); filerWriter.close(); } catch (IOException e) { e.printStackTrace(); } } /** * 打开日志文件并写入日志 * * @param tag * @param text */ static int count=0; private static synchronized void writeLogtoFile( final String tag, final String text) {// 新建或打开日志文件 String needWriteMessage = myLogSdf.format(System.currentTimeMillis()) + " " + tag + " " + text; try { /**后面这个参数代表是不是要接上文件中原来的数据，不进行覆盖**/ //先检查存在的file，如果存在没有写满（小于1MB的）的 则返回File。如果返回null,则要新建 file = checkExistFilesAndCreateFile(); FileWriter filerWriter = new FileWriter(file, true); BufferedWriter bufWriter = new BufferedWriter(filerWriter); bufWriter.write(needWriteMessage); bufWriter.newLine(); bufWriter.close(); filerWriter.close(); } catch (IOException e) { e.printStackTrace(); } } private static final String PREFREIX = "jiaKao_appLog"; private static synchronized File checkExistFilesAndCreateFile() { String dirPath = Environment.getExternalStorageDirectory().getAbsolutePath() + "/JiaKaolog"; File dirsFile = new File(dirPath); if (!dirsFile.exists()){ Log.i(TAG,"文件目录不存在，创建/nvlog..."); dirsFile.mkdirs(); } File tempFile = null; for (int j = 0; j < 5; j++) { tempFile = new File(dirPath,PREFREIX+j+".txt"); if (tempFile.length()>20*1024*1024) { if (j==4){ Log.i(TAG,"删除第一个文件"); File file = new File(dirPath,PREFREIX+"0.txt"); file.delete(); Log.i(TAG,"重命名其他文件"); rename(); return new File(dirPath,PREFREIX+"4.txt"); } continue; }else{ // Log.i(TAG,String.format("返回文件%s",tempFile.getName())); break; } } // Log.i(TAG,String.format("返回文件null")); return tempFile; } private static void rename() { String dirPath = Environment.getExternalStorageDirectory().getAbsolutePath() + "/JiaKaolog"; for (int i = 1; i < 5; i++) { File file = new File(dirPath,PREFREIX+i+".txt"); File fileSrc = new File(dirPath,PREFREIX+(i-1)+".txt"); file.renameTo(fileSrc); } } /** * 删除制定的日志文件 */ public static void delFile() {// 删除日志文件 String needDelFiel = logfile.format(getDateBefore()); String dirPath = Environment.getExternalStorageDirectory().getAbsolutePath() + "/JiaKaolog"; File file = new File(dirPath, needDelFiel + MYLOGFILEName);// MYLOG_PATH_SDCARD_DIR if (file.exists()) { file.delete(); } } private static long filesLength = 0; public static void checkTotalFileSpace(){ String dirPath = Environment.getExternalStorageDirectory().getAbsolutePath() + "/JiaKaolog"; String regx = "^[0-9]{4}-"; Pattern pattern = Pattern.compile(regx); File file = new File(dirPath); filesLength = 0; if (file.isDirectory()) { File[] subFiles = file.listFiles(); for (File f : subFiles) { String fName = f.getName(); if (!TextUtils.isEmpty(fName)) { Matcher matcher = pattern.matcher(fName); if (matcher.find()) { Log.i(TAG, "文件名称：" + fName+"checkTotalFileSpace: "+f.length()); if (f.length()>20*1024*1024){ Log.i(TAG, "checkTotalFileSpace: 单个文件超过20MB ，删除"+f.getName()); f.delete(); continue; } filesLength +=f.length(); } } } if (filesLength >= 2*1024*1024){ Log.i(TAG, "checkTotalFileSpace: 总大小超过20MB 删除"+filesLength+"B"); delSubDirLogs(); } } } public static void delSubDirLogs() { String dirPath = Environment.getExternalStorageDirectory().getAbsolutePath() + "/JiaKaolog"; String regx = "^[0-9]{4}-"; Pattern pattern = Pattern.compile(regx); File file = new File(dirPath); boolean needDel = true; if (file.isDirectory()) { File[] subFiles = file.listFiles(); for (File f : subFiles) { String fName = f.getName(); if (!TextUtils.isEmpty(fName)) { Matcher matcher = pattern.matcher(fName); if (matcher.find()) { Log.i(TAG, "subDirLogs: 符合规则^[0-9]{4}- : " + matcher.group(0)); for (int i = 0; i < SDCARD_LOG_FILE_SAVE_DAYS; i++) { String needSaveFileName = logfile.format(getDateBefore(i)); if (fName.contains(needSaveFileName)) { Log.i(TAG, "delSubDirLogs: 此log需要保留：" + fName + " 日期：" + needSaveFileName); needDel = false; break; } else { needDel = true; } } if (needDel) { Log.i(TAG, "delSubDirLogs: 删除该文件：" + fName); f.delete(); } } } else { Log.i(TAG, "delSubDirLogs: 不符合删除规则，则不删除：" + fName); } } } else { Log.i(TAG, "subDirLogs: is not a directory"); } } /** * 得到现在时间前的几天日期，用来得到需要删除的日志文件名 */ private static Date getDateBefore() { Date nowtime = new Date(); Calendar now = Calendar.getInstance(); now.setTime(nowtime); now.set(Calendar.DATE, now.get(Calendar.DATE) - SDCARD_LOG_FILE_SAVE_DAYS); return now.getTime(); } private static Date getDateBefore(int i) { Date nowtime = new Date(); Calendar now = Calendar.getInstance(); now.setTime(nowtime); now.set(Calendar.DATE, now.get(Calendar.DATE) - i); return now.getTime(); } }