1. 求两个年月之间的月份,包含开始月份
/** * @param startMonth @example: "2016-01" * @param endMonth @example: "2019-11" * @return 两个时间之间的月份(含开始,结束) * @throws ParseException */ private List<String> getMonths(String startMonth,String endMonth) throws ParseException{ LinkedList<String> months = new LinkedList<>(); SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM"); Calendar minCalender = Calendar.getInstance(); Calendar maxCalender = Calendar.getInstance(); // 设置开始月份 minCalender.setTime(sdf.parse(startMonth)); minCalender.set(minCalender.get(Calendar.YEAR), minCalender.get(Calendar.MONTH),1); maxCalender.setTime(sdf.parse(endMonth)); // 设置日期,保证最后一个日期参数 大于 开始时间日历 maxCalender.set(maxCalender.get(Calendar.YEAR), maxCalender.get(Calendar.MONTH),2); while (minCalender.before(maxCalender)) { months.add(sdf.format( minCalender.getTime() )); minCalender.add(Calendar.MONTH, 1); } return months; }
2. 求两个年月之间的月份,包含开始月份,不含结束月份
/** * @param startMonth @example: "2016-01" * @param endMonth @example: "2019-11" * @return 两个时间之间的月份(含开始,不含结束) * @throws ParseException */ private List<String> getMonths(String startMonth,String endMonth) throws ParseException{ LinkedList<String> months = new LinkedList<>(); SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM"); Calendar minCalender = Calendar.getInstance(); Calendar maxCalender = Calendar.getInstance(); // 设置开始月份 minCalender.setTime(sdf.parse(startMonth)); // 设置结束月份 maxCalender.setTime(sdf.parse(endMonth)); while (minCalender.before(maxCalender)) { months.add(sdf.format( minCalender.getTime() )); minCalender.add(Calendar.MONTH, 1); } return months; }