在写一个获取当前系统CPU占用最多一个进程,然后判断这个进程占用CPU超过50%则杀掉他 在使用shell进行 […]
Continue reading...Error: Invalid publish topic ‘/s2c/common/#’, does it contain ‘+’ or ‘#’?
调用mosquitto_pub命令去给某类topic发消息时提示如下错误 [crayon-6419b2de28 […]
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systemctl 如何启动、关闭、启用/禁用服务
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Continue reading...lua数字保留小数点几位数的几个方法
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Continue reading...安卓java:检测设备否有GPS模块
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public boolean hasGPSDevice(Context context) { final LocationManager mgr = (LocationManager)context.getSystemService(Context.LOCATION_SERVICE); if ( mgr == null ) return false; final List<String> providers = mgr.getAllProviders(); if ( providers == null ) return false; return providers.contains(LocationManager.GPS_PROVIDER); } |
参考:https://blog.csdn.n […]
Continue reading...安卓java:统计指定时间段内的流量信息
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import android.app.usage.NetworkStatsManager; private NetworkStatsManager networkStatsManager; networkStatsManager = (NetworkStatsManager) context.getApplicationContext().getSystemService(NETWORK_STATS_SERVICE); NetworkStats.Bucket bucket = null; bucket = networkStatsManager.querySummaryForDevice(ConnectivityManager.TYPE_MOBILE, telephonyManager.getSubscriberId(), monthStart, System.currentTimeMillis()); Logger.i("month Total rx: " + bucket.getRxBytes() +" tx = " + bucket.getTxBytes()); bucket = networkStatsManager.querySummaryForDevice(ConnectivityManager.TYPE_MOBILE, telephonyManager.getSubscriberId(), todayStart, System.currentTimeMillis()); Logger.i("today Total rx: " + bucket.getRxBytes() +" tx = " + bucket.getTxBytes()); |
使用networkStatsManager. […]
Continue reading...安卓java:获取月初的时间戳
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public static long getTimestampOfbeginningMonth(){ /* // 获取当前年份、月份、日期 Calendar cale = null; cale = Calendar.getInstance(); int year = cale.get(Calendar.YEAR); int month = cale.get(Calendar.MONTH) + 1; int day = cale.get(Calendar.DATE); int hour = cale.get(Calendar.HOUR_OF_DAY); int minute = cale.get(Calendar.MINUTE); int second = cale.get(Calendar.SECOND); int dow = cale.get(Calendar.DAY_OF_WEEK); int dom = cale.get(Calendar.DAY_OF_MONTH); int doy = cale.get(Calendar.DAY_OF_YEAR); ShuncomLogger.i("Current Date: " + cale.getTime()); ShuncomLogger.i("Year: " + year); ShuncomLogger.i("Month: " + month); ShuncomLogger.i("Day: " + day); ShuncomLogger.i("Hour: " + hour); ShuncomLogger.i("Minute: " + minute); ShuncomLogger.i("Second: " + second); ShuncomLogger.i("Day of Week: " + dow); ShuncomLogger.i("Day of Month: " + dom); ShuncomLogger.i("Day of Year: " + doy); // 获取当月第一天和最后一天 SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd"); String firstday, lastday; // 获取前月的第一天 cale = Calendar.getInstance(); cale.add(Calendar.MONTH, 0); cale.set(Calendar.DAY_OF_MONTH, 1); firstday = format.format(cale.getTime()); // 获取前月的最后一天 cale = Calendar.getInstance(); cale.add(Calendar.MONTH, 1); cale.set(Calendar.DAY_OF_MONTH, 0); lastday = format.format(cale.getTime()); ShuncomLogger.i("本月第一天和最后一天分别是 : " + firstday + " and " + lastday); */ Calendar calendar = Calendar.getInstance();// 获取当前日期 calendar.add(Calendar.MONTH, 0); calendar.set(Calendar.DAY_OF_MONTH, 1);// 设置为1号,当前日期既为本月第一天 calendar.set(Calendar.HOUR_OF_DAY, 0); calendar.set(Calendar.MINUTE, 0); calendar.set(Calendar.SECOND, 0); ShuncomLogger.i("月初的时间戳:"+String.valueOf(calendar.getTimeInMillis())); return calendar.getTimeInMillis(); } public static long getTimestampOfbeginningToday(){ Calendar calendar = Calendar.getInstance();// 获取当前日期 //calendar.add(Calendar.MONTH, 0); //calendar.add(Calendar.DAY_OF_MONTH, 0); calendar.set(Calendar.HOUR_OF_DAY, 0); calendar.set(Calendar.MINUTE, 0); calendar.set(Calendar.SECOND, 0); ShuncomLogger.i("今天开始的时间戳:"+String.valueOf(calendar.getTimeInMillis())); return calendar.getTimeInMillis(); } |
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shell脚本中无法执行source命令
今天写了个简单的自动编译脚本,在执行编译前需要先引入一个环境变量文件,用到了source命令 然后执行脚本时却 […]
Continue reading...openwrt linux下gpio watchdog dts文件配置
由于项目需要,网关需要外接硬件看门狗,而且从网关上电开始就要开始喂狗,从uboot的代码中就开始了喂狗操作 而 […]
Continue reading...中国移动光猫网关samba文件共享
家里拉了中国移动的光纤,送了光猫,带有USB口,可以做文件共享和USB打印机共享 进入光猫的超级管理界面(进入 […]
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