yearMonthFormatThreadLocal =
new ThreadLocal() {
@Override
protected SimpleDateFormat initialValue() {
return new SimpleDateFormat(YEAR_MONTH_FORMAT);
}
};
public static SimpleDateFormat yesygetYearMonthDate() {
return yearMonthFormatThreadLocal.get();
}
/**
* @param date
* @return yyyyMMdd
*/
public static int getLdate(Date date) {
return Integer.parseInt(formatLShortDate(date));
}
/**
* @param date
* @return HHmmss
*/
public static int getLShortTime(Date date) {
return Integer.parseInt(formatLShortTime(date));
}
/**
* @param date
* @return yyyyMMddHHmmss
*/
public static long getLDateTime(Date date) {
return Long.parseLong(formatLDateTime(date));
}
public static boolean isBefore(Date date1, Date date2) {
return date2.getTime() - date1.getTime() > 0;
}
private static Date add(Date date, int zoom, int amount) {
if (date == null) {
throw new IllegalArgumentException("The date must not be null");
}
if (amount == 0) {
return date;
}
Calendar cal = Calendar.getInstance();
cal.setTime(date);
cal.add(zoom, amount);
return cal.getTime();
}
public static Date addDays(Date date, int amount) {
return add(date, Calendar.DATE, amount);
}
public static Date addHours(Date date, int amount) {
return add(date, Calendar.HOUR, amount);
}
public static Date addMinutes(Date date, int amount) {
return add(date, Calendar.MINUTE, amount);
}
public static Date addMonth(Date date, int amount) {
return add(date, Calendar.MONTH, amount);
}
private static Date paser(DateFormat format, String dateString) {
try {
return format.parse(dateString);
} catch (ParseException e) {
throw new IllegalArgumentException("日期格式错误:" + dateString);
}
}
public static String format(DateFormat format, Date date) {
return format.format(date);
}
/**
* yyyy-MM-dd HH:mm:ss
*
* @param date
* @return
*/
public static Date parseDateTime(String date) {
return paser(dateTimeThreadLocal.get(), date);
}
/**
* yyyy-MM-dd
*
* @param date
* @return
*/
public static Date parseDate(String date) {
return paser(dateThreadLocal.get(), date);
}
public static Date parseDate(String date, String format) {
if (date == null) {
throw new IllegalArgumentException("The date must not be null");
}
return paser(new SimpleDateFormat(format), date);
}
/**
* @param date
* @return HH:mm:ss
*/
public static String formatShortTime(Date date) {
return format(shortTimeThreadLocal.get(), date);
}
/**
* @param date
* @return yyyy-MM-dd HH:mm:ss
*/
public static String formatDateTime(Date date) {
return format(dateTimeThreadLocal.get(), date);
}
/**
* @param date
* @return yyyy-MM-dd
*/
public static String formatDate(Date date) {
return format(dateThreadLocal.get(), date);
}
/**
* @param date
* @return format
*/
public static String formatDate(Date date, String format) {
return format(new SimpleDateFormat(format), date);
}
/**
* @param date
* @return yyyyMMdd
*/
public static String formatLDate(Date date) {
return format(lDateThreadLocal.get(), date);
}
/**
* @param date
* @return yyyyMMddHHmmss
*/
public static String formatLDateTime(Date date) {
return format(lDateTimeThreadLocal.get(), date);
}
public static String formatLLDateTime(Date date) {
return format(llDateTimeThreadLocal.get(), date);
}
/**
* @param date
* @return HHmmss
*/
public static String formatLShortTime(Date date) {
return format(lShortTimeThreadLocal.get(), date);
}
/**
* @param date
* @return yyyyMMdd
*/
public static String formatLShortDate(Date date) {
return format(lDateThreadLocal.get(), date);
}
public static Date yesterdayStart() {
return new Date(todayStart().getTime() - ONE_DAY);
}
public static Date yesterdayEnd() {
return new Date(todayStart().getTime() - 1);
}
public static boolean isYesterday(Date startDay) {
boolean isYesterday = false;
Date yesterdayStart = yesterdayStart();
Date yesterdayEnd = yesterdayEnd();
if (yesterdayStart.getTime() <= startDay.getTime()
&& yesterdayEnd.getTime() >= startDay.getTime()) {
isYesterday = true;
}
return isYesterday;
}
/**
* The very beginning of today.
*
* @return
*/
public static Date todayStart() {
return dayStart(new Date());
}
public static Date todayEnd() {
return dayEnd(new Date());
}
public static Date dayStart(Date someday) {
Calendar calendar = Calendar.getInstance();
calendar.setTime(someday);
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();
}
/**
* 时间间隔(天数),date1-date2
*
* @param date1
* @param date2
* @return 负数表示date1在date2前
*/
public static int intervalDays(Date date1, Date date2) {
Calendar cNow = DateUtils.toCalendar(dayStart(date1));
Calendar cReturnDate = DateUtils.toCalendar(dayStart(date2));
long todayMs = cNow.getTimeInMillis();
long returnMs = cReturnDate.getTimeInMillis();
long intervalMs = todayMs - returnMs;
return (int) (intervalMs / ONE_DAY);
}
public static Date dayEnd(Date someday) {
return new Date(dayStart(someday).getTime() + ONE_DAY - 1);
}
public static Date dayEnd2(Date someday) {
Calendar calendar = DateUtils.toCalendar(someday);
calendar.set(Calendar.HOUR, 23);
calendar.set(Calendar.MINUTE, 59);
calendar.set(Calendar.SECOND, 59);
return calendar.getTime();
}
public static Date zero() {
return new Date(0);
}
public static Date firstDayOfMonth(Date date) {
Calendar calendar = DateUtils.toCalendar(dayStart(date));
calendar.set(Calendar.DAY_OF_MONTH, 1);
return calendar.getTime();
}
public static boolean isSameDay(Date date1, Date date2) {
Calendar calendar1 = Calendar.getInstance();
calendar1.setTime(date1);
Calendar calendar2 = Calendar.getInstance();
calendar2.setTime(date2);
return calendar1.get(Calendar.YEAR) == calendar2.get(Calendar.YEAR)
&& calendar1.get(Calendar.MONTH) == calendar2.get(Calendar.MONTH)
&& calendar1.get(Calendar.DAY_OF_MONTH) == calendar2.get(Calendar.DAY_OF_MONTH);
}
public static Date yesterday() {
Calendar calendar = Calendar.getInstance();
calendar.setTime(new Date());
calendar.add(Calendar.DAY_OF_MONTH, -1);
return calendar.getTime();
}
public static Date yesterday(Date date) {
Calendar calendar = Calendar.getInstance();
calendar.setTime(date);
calendar.add(Calendar.DAY_OF_MONTH, -1);
return calendar.getTime();
}
}