关于时间戳和日期，时间的互换

来源：互联网发布：淘宝店铺运营包含哪些编辑：程序博客网时间：2024/06/05 05:47

/** * 日期转时间戳 */public static long dateToTimestamp(String datetime) {SimpleDateFormat sdr = new SimpleDateFormat("yyyy-MM-dd", Locale.CHINA);long timestamp = 0;try {Date date = sdr.parse(datetime);timestamp = date.getTime();} catch (ParseException e) {e.printStackTrace();}return timestamp;}/** * 时间戳转日期 */public static String timestampToDate(String datetime) {SimpleDateFormat sdr = new SimpleDateFormat("yyyy-MM-dd",Locale.getDefault());long timestamp = Long.valueOf(datetime);Date date = new Date(timestamp);return sdr.format(date);}

        public static String formateMils(Long millSec) {Date date = new Date(millSec);SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");return sdf.format(date);}

/** * @param time *            时间戳转换成时分秒 * @return 时：分：秒 */public static String getFormatFilterTime(long time) {time = time / 1000;long second = time % 60;long minute = (time % 3600) / 60;long hour = time / 3600;// 秒显示两位String strSecond = ("00" + second).substring(("00" + second).length() - 2);// 分显示两位String strMinute = ("00" + minute).substring(("00" + minute).length() - 2);// 时显示两位String strHour = ("00" + hour).substring(("00" + hour).length() - 2);return strHour.equals("00") ? strMinute + ":" + strSecond : strHour+ ":" + strMinute + ":" + strSecond;}

/** *用日历获取日期时间 */// 获取某天0点的时间public static Long getDayStartTime(Calendar calendar) {calendar.set(Calendar.HOUR_OF_DAY, 0);calendar.set(Calendar.MINUTE, 0);calendar.set(Calendar.SECOND, 0);calendar.set(Calendar.MILLISECOND, 0);return calendar.getTime().getTime();}// 获取某天23点59分59秒的时间，也就是一天最后的时间public static Long getDayEndTime(Calendar calendar) {calendar.set(Calendar.HOUR_OF_DAY, 23);calendar.set(Calendar.MINUTE, 59);calendar.set(Calendar.SECOND, 59);calendar.set(Calendar.MILLISECOND, 59);return calendar.getTime().getTime();}

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