1.获取起止日期和终止日期之间的所有日期 — 返回 Date 集合
public static List<Date> findDates(Date startDate, Date endDate) {
Calendar cStart = Calendar.getInstance();
cStart.setTime(getStartTime(startDate));
List dateList = new ArrayList();
dateList.add(startDate);
while (endDate.after(cStart.getTime())) {
cStart.add(Calendar.DAY_OF_MONTH, 1);
if(endDate.compareTo(cStart.getTime()) < 0)
break;
dateList.add(cStart.getTime());
}
return dateList;
}
2. 返回 日期的 String 集合, 有序排列
public static List<String> getTwoDaysDay(String startDate, String endDate) {
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
List<String> dateList = new ArrayList<String>();
try {
Date dateOne = sdf.parse(startDate);
Date dateTwo = sdf.parse(endDate);
Calendar calendar = Calendar.getInstance();
calendar.setTime(dateTwo);
dateList.add(endDate);
while (calendar.getTime().after(dateOne)) {
calendar.add(Calendar.DAY_OF_MONTH, -1);
dateList.add(sdf.format(calendar.getTime()));
}
} catch (Exception e) {
e.printStackTrace();
}
return dateList;
}
public static List<String> getTwoDaysDayDes(String startDate, String endDate) {
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
List<String> dateList = new ArrayList<String>();
try {
Date dateOne = sdf.parse(startDate);
Date dateTwo = sdf.parse(endDate);
Calendar calendar = Calendar.getInstance();
calendar.setTime(dateOne);
dateList.add(startDate);
while (dateTwo.after(calendar.getTime())) {
calendar.add(Calendar.DAY_OF_MONTH, 1);
dateList.add(sdf.format(calendar.getTime()));
}
} catch (Exception e) {
e.printStackTrace();
}
return dateList;
}
3.根据一段时间获取该段时间的所有月份
public static List<String> getMonthBetween(String minDate, String maxDate){
ArrayList<String> result = new ArrayList<String>();
try {
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM");
Calendar min = Calendar.getInstance();
Calendar max = Calendar.getInstance();
min.setTime(sdf.parse(minDate));
min.set(min.get(Calendar.YEAR), min.get(Calendar.MONTH), 1);
max.setTime(sdf.parse(maxDate));
max.set(max.get(Calendar.YEAR), max.get(Calendar.MONTH), 2);
Calendar curr = min;
while (curr.before(max)) {
result.add(sdf.format(curr.getTime()));
curr.add(Calendar.MONTH, 1);
}
} catch (ParseException e) {
e.printStackTrace();
}
return result;
}