计算两个时间之间相差多少天,多少小时,多少分钟,多少秒
public static Map<String,Long> getTimeDifference(Integer startTime,Integer endTime){ Map<String,Long> resMap = new HashMap<String,Long>(); String endTimeStr = String.valueOf(endTime); SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); String end = sdf.format(new Date(Long.valueOf(endTimeStr+"000"))); String startTimeStr = String.valueOf(startTime); String start = sdf.format(new Date(Long.valueOf(startTimeStr+"000"))); long nd = 1000*24*60*60;//一天的毫秒数 long nh = 1000*60*60;//一小时的毫秒数 long nm = 1000*60;//一分钟的毫秒数 long ns = 1000;//一秒钟的毫秒数long //获得两个时间的毫秒时间差异 long diff = 0; try { diff = sdf.parse(end).getTime() - sdf.parse(start).getTime(); } catch (ParseException e) { LogUtil.error(TimeUtil.class, "getTimeDifference", "时间差计算异常", e); } long day = diff/nd;//计算差多少天 long hour = diff%nd/nh;//计算差多少小时 long min = diff%nd%nh/nm;//计算差多少分钟 long sec = diff%nd%nh%nm/ns;//计算差多少秒//输出结果 resMap.put("day", day); resMap.put("hour", hour); resMap.put("min", min); resMap.put("sec", sec); return resMap; }
public static long getSpecifiedTimeStamp(String time) { DateFormat df = new SimpleDateFormat("yyyyMMdd"); long timestamp = 0l; try { Date date = df.parse(time); Calendar cal = Calendar.getInstance(); cal.setTime(date); timestamp = cal.getTimeInMillis(); } catch (ParseException e) { e.printStackTrace(); } return timestamp/1000; }
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