/**
* 获取指定时间前几周以及后几周时间的闭区间时间区域。如果before小于0 before 为0 如果after小于0
* after为0，时间范围的开始时间为目标时间的周一，end为目标时间周的周日
*
* @param day 指定时间
* @param before 前几周
* @param after 后几周
* @return
*/
public static TimeRangeDetail getWeekDays(Date day, int before, int after) {
if (day == null) {
day = getCurrentDay();
}
if (before < 0) {
before = 0;
}
if (after < 0) {
after = 0;
}
Calendar calendar = Calendar.getInstance();
// 获取一周的第一天 向前找整周天 找到begin的范围
calendar.setTime(getMondayOfThisWeek(day));
calendar.add(Calendar.DAY_OF_YEAR, 0 - 7 * before);
Date start = calendar.getTime();
// 获取一周的最后一天 向后找整周天 找到end范围
calendar.setTime(getSundayOfThisWeek(day));
calendar.add(Calendar.DAY_OF_YEAR, 7 * after);
Date end = calendar.getTime();
return new TimeRangeDetail(TimeRangeDetail.toTime(start), TimeRangeDetail.toTime(end));
}
/**
* 获取每个月的第一天
*
* @param day
* @return
*/
protected static String getFirstDayOfMonth(Date day) {
if (day == null) {
day = getCurrentDay();
}
String timeStr = TimeRangeDetail.toTime(day);
return timeStr.substring(0, 6) + "01";
}
/**
* 获取指定时间所在年的最后一天
*
* @param day
* @return
*/
protected static String getLastDayOfYear(Date day) {
if (day == null) {
day = getCurrentDay();
}
String timeStr = TimeRangeDetail.toTime(day);
return timeStr.substring(0, 4) + "1231";
}
/**
* 获取每个月的最后一天
*
* @param day
* @return
*/
protected static String getLastDayOfMonth(Date day) {
if (day == null) {
day = getCurrentDay();
}
String timeStr = TimeRangeDetail.toTime(day);
Calendar calendar = Calendar.getInstance();
calendar.set(Calendar.YEAR, Integer.parseInt(timeStr.substring(0, 4)));
calendar.set(Calendar.MONTH, Integer.parseInt(timeStr.substring(4, 6)) - 1);
int maxDay = calendar.getActualMaximum(Calendar.DAY_OF_MONTH);
return timeStr.substring(0, 6) + String.valueOf(maxDay);
}
/**
* 获取指定时间之前，之后指定的时间的范围
*
* @param day 指定时间
* @param before 之前多少天 ，如果表示当前时间，before为0
* @param after 之后多少天，如果表示当前时间，after为0
* @return TimeRange
*/
public static TimeRangeDetail getDays(Date day, int before, int after) {
if (day == null) {
day = getCurrentDay();
}
if (before < 0) {
before = 0;
}
if (after < 0) {
after = 0;
}
Calendar calendar = Calendar.getInstance();
calendar.setTime(day);
// 获取开始时间
calendar.add(Calendar.DAY_OF_YEAR, 0 - before);
Date begin = calendar.getTime();
// 获取结束时间
calendar.add(Calendar.DAY_OF_YEAR, 0 + before + after);
Date end = calendar.getTime();
return new TimeRangeDetail(TimeRangeDetail.toTime(begin), TimeRangeDetail.toTime(end));
}