获取开始日期与结束日期之间每天的list

/*** 根据传入的开始时间和结束时间,筛选出所有的天的list;** @param startTime* @param endTime*/public Map<String, List<String>> fetchDayListBetweenStartAndEnd(String startTime, String endTime) {// 创建mapMap<String, List<String>> map = Maps.newHashMap(); // guava的工具类SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");// 开始时间列表List<String> startTimeList = Lists.newArrayList();// guava的工具类// 结束时间列表List<String> endTimeList = Lists.newArrayList(); // guava的工具类Date startDate = null;Date checkDate = null;try {startDate = sdf.parse(startTime);Date endDate = sdf.parse(endTime);Calendar cal = Calendar.getInstance();cal.setTime(startDate);int year = cal.get(Calendar.YEAR);int month = cal.get(Calendar.MONTH);while (startDate.before(endDate) && month <= 11) {final int last = cal.getActualMaximum(Calendar.DAY_OF_MONTH);cal.set(Calendar.DAY_OF_MONTH, last);Date lastDayOfMonth = cal.getTime();if (lastDayOfMonth.after(endDate)) {checkDate = endDate;} else {checkDate = lastDayOfMonth;}// 遍历每个月的日期，并添加到start和end的list中cal.setTime(startDate);while (startDate.before(checkDate)) {startTimeList.add(sdf.format(startDate));endTimeList.add(sdf.format(startDate));cal.add(Calendar.DAY_OF_MONTH, 1);startDate = cal.getTime();}// 添加checkDate到start和end的list中startTimeList.add(sdf.format(checkDate));endTimeList.add(sdf.format(checkDate));// 当month为12时,遍历下一年month = month + 1;if (month == 12) {year = year + 1;month = 0;}cal.set(year, month, 1);startDate = cal.getTime();// 当endTime是月份的第一天时,设置startTime;startTime = sdf.format(startDate);}// 比较startTime和endDate:相等时,添加到start和end的list中if (startTime.equals(sdf.format(endDate))) {startTimeList.add(startTime);endTimeList.add(sdf.format(endDate));}if (!startTimeList.isEmpty() && !endTimeList.isEmpty()) {map.put("dayTimeList", startTimeList);}} catch (Exception e) {e.printStackTrace();}return map;}

获取开始日期与结束日期之间每个月的开始日期和结束日期的list

/*** 根据开始时间和结束时间,列出每个月的开始日期和结束日期,并分别放到startTimeList和endTimeList** @param startTime* @param endTime*/public Map<String, List<String>> fetchMonthFirstLastList(String startTime, String endTime) {// 创建mapMap<String, List<String>> map = Maps.newHashMap(); // guava的工具类SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");// 开始时间列表List<String> startTimeList = Lists.newArrayList();// guava的工具类// 结束时间列表List<String> endTimeList = Lists.newArrayList(); // guava的工具类Date startDate = null;try {startDate = sdf.parse(startTime);Date endDate = sdf.parse(endTime);Calendar cal = Calendar.getInstance();cal.setTime(startDate);int year = cal.get(Calendar.YEAR);int month = cal.get(Calendar.MONTH);// 当开始日期在结束时期之前，添加日期到startTimeList和endTimeList中while (startDate.before(endDate) && month <= 11) {final int first = cal.getActualMinimum(Calendar.DAY_OF_MONTH);cal.set(Calendar.DAY_OF_MONTH, first);Date firstDayOfMonth = cal.getTime();if (firstDayOfMonth.before(startDate)) {startTimeList.add(sdf.format(startDate));} else {startTime = sdf.format(firstDayOfMonth);startTimeList.add(startTime);}final int last = cal.getActualMaximum(Calendar.DAY_OF_MONTH);cal.set(Calendar.DAY_OF_MONTH, last);Date lastDayOfMonth = cal.getTime();if (lastDayOfMonth.after(endDate)) {endTimeList.add(sdf.format(endDate));} else {endTimeList.add(sdf.format(lastDayOfMonth));}month += 1;if (month == 12) {year = year + 1;month = 0;}cal.set(year, month, 1);startDate = cal.getTime();// 当endTime是月份第一天时,设置startTime,再利用startTime.equals(sdf.format(endDate));// 添加startTime和endTime到list中startTime = sdf.format(startDate);}// 当结束日期是在月初第一天时,把开始日期和结束日期都添加上去if (startTime.equals(sdf.format(endDate))) {startTimeList.add(startTime);endTimeList.add(sdf.format(endDate));}// 添加if (!startTimeList.isEmpty() && !endTimeList.isEmpty()) {map.put("startTimeList", startTimeList);map.put("endTimeList", endTimeList);}} catch (Exception e) {e.printStackTrace();}return map;}