Java°æµÄdatediff
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/**
* °´Ö¸¶¨ÈÕÆÚµ¥Î»¼ÆËãÁ½¸öÈÕÆÚ¼äµÄ¼ä¸ô
*
* @param timeInterval
* @param date1
* @param date2
* @return
*/
public static long dateDiff(String timeInterval, Date date1, Date date2) {
if (timeInterval.equals("year")) {
Calendar calendar = Calendar.getInstance();
calendar.setTime(date1);
int time = calendar.get(Calendar.YEAR);
calendar.setTime(date2);
return time - calendar.get(Calendar.YEAR);
}
if (timeInterval.equals("quarter")) {
Calendar calendar = Calendar.getInstance();
calendar.setTime(date1);
int time = calendar.get(Calendar.YEAR) * 4;
calendar.setTime(date2);
time -= calendar.get(Calendar.YEAR) * 4;
calendar.setTime(date1);
time += calendar.get(Calendar.MONTH) / 4;
calendar.setTime(date2);
return time - calendar.get(Calendar.MONTH) / 4;
}
if (timeInterval.equals("month")) {
Calendar calendar = Calendar.getInstance();
calendar.setTime(date1);
int time = calendar.get(Calendar.YEAR) * 12;
calendar.setTime(date2);
time -= calendar.get(Calendar.YEAR) * 12;
calendar.setTime(date1);
time += calendar.get(Calendar.MONT
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