1、格式化
SimpleDateFormat def=new SimpleDateFormat( "yyyy-MM-dd");
Date startTemp = def.parse(startTime);
Date endTemp = def.parse(endTime);
Calendar calendar = Calendar.getInstance();
ArrayList<String> dayList = new ArrayList<String>();
dayList .add(startTime);
calendar.setTime(startTemp);
2、计算时间差
long length = (endTemp.getTime()-startTemp.getTime())/ (1000 * 60 * 60 * 24);
3、时间+1
for ( int i = 0; i < length ; i++) {
calendar.add(Calendar.DAY_OF_MONTH,1);
dayList.add(def.format(calendar.getTime()));
}