import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Calendar; import java.util.Date; import java.util.List; /** * Created on 2022/11/17. * * @author */ public class SplitTimeByIntervalTime { /** * 获取固定间隔时刻集合 * * @param start 开始时间 * @param end 结束时间 * @param interval 时间间隔(单位:分钟) * @return */ public static List<String> getIntervalTimeList(String start, String end, int interval) { Date startDate = DateTimeUtils.convertString2Date("HH:mm:ss", start); Date endDate = DateTimeUtils.convertString2Date("HH:mm:ss", end); List<String> list = new ArrayList<>(); while (startDate.getTime() <= endDate.getTime()) { list.add(DateTimeUtils.convertDate2String("HH:mm:ss", startDate)); Calendar calendar = Calendar.getInstance(); calendar.setTime(startDate); calendar.add(Calendar.MINUTE, interval); if (calendar.getTime().getTime() > endDate.getTime()) { if (!startDate.equals(endDate)) { list.add(DateTimeUtils.convertDate2String("HH:mm:ss", endDate)); } startDate = calendar.getTime(); } else { startDate = calendar.getTime(); } } return list; } public static void main(String[] args) { List<String> list = getIntervalTimeList("12:00:00","20:30:00",5); for (String s : list) { System.out.println(s); } } } class DateTimeUtils { public static Date convertString2Date(String format, String dateStr) { SimpleDateFormat simpleDateFormat = new SimpleDateFormat(format); try { Date date = simpleDateFormat.parse(dateStr); return date; } catch (ParseException e) { e.printStackTrace(); } return null; } public static String convertDate2String(String format, Date date) { SimpleDateFormat simpleDateFormat = new SimpleDateFormat(format); return simpleDateFormat.format(date); } public static void main(String[] args) { System.out.println(convertString2Date("HH:mm:ss", "19:00:00")); System.out.println(convertDate2String("HH:mm:ss", new Date())); } }
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