Java日曆格式
阿新 • • 發佈：2018-11-10
Json格式：
實現程式碼：
@GetMapping(value="/teacher/week") public Map standardweek(HttpServletRequest request, HttpServletResponse response) throws ParseException { // 返回的結果集 Map map = new HashMap(); map.put("year", Integer.valueOf(TimeUtils.getDateString(new Date(), "yyyy"))); // 存放一週的資料 List<List<Map>> weekList = new ArrayList<>(); // 當天時間的00：00：00 Calendar cal = new GregorianCalendar(); // 設定週日為第一天 cal.setFirstDayOfWeek(Calendar.SUNDAY); cal.set(Calendar.HOUR_OF_DAY, 0); cal.set(Calendar.MINUTE, 0); cal.set(Calendar.SECOND, 0); cal.set(Calendar.MILLISECOND, 0); SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ssXXX"); String todayStr = sdf.format(cal.getTime()); // 2018-09-09T00:00:00+08:00 // 當天時間的毫秒值 Long todayLong = sdf.parse(todayStr).getTime(); // 本週的第幾天 int day_of_week = cal.get(Calendar.DAY_OF_WEEK); // 該周是該年的第幾周 int week_of_year = cal.get(Calendar.WEEK_OF_YEAR); // 開始周 map.put("startWeeks", week_of_year); // 結束周 map.put("endWeeks", week_of_year + 4); // 週日到週六的毫秒值 Long firstday_of_week = todayLong - (day_of_week - 1) * 24 * 3600000L; Long secondday_of_week = firstday_of_week + 24 * 3600000L ; Long thirdday_of_week = secondday_of_week + 24 * 3600000L ; Long fourday_of_week = thirdday_of_week + 24 * 3600000L ; Long fifthday_of_week = fourday_of_week + 24 * 3600000L ; Long sixday_of_week = fifthday_of_week + 24 * 3600000L ; Long seventh_of_week = sixday_of_week + 24 * 3600000L ; Long lastday_of_week = firstday_of_week + 7 * 24 * 3600000L - 1 ; // 第一天 List<Map> firstDay = new ArrayList<>(); // 第二天 List<Map> secondDay = new ArrayList<>(); // 第三天 List<Map> thirdDay = new ArrayList<>(); // 第四天 List<Map> fourthDay = new ArrayList<>(); // 第五天 List<Map> fifthDay = new ArrayList<>(); // 第六天 List<Map> sixthDay = new ArrayList<>(); // 第七天 List<Map> seventhDay = new ArrayList<>(); // 查詢資料庫 List<Map> dblist = teacherAvailableTimeService.selectAvailableTime(Jwt.getID(request)); if(dblist.size() > 0){ for (Map m:dblist){ // 當前資料的startAt(開始時間) Date startTime = (Date) m.get("startAt"); // 判斷開始時間是否在本週的範圍內（週日-週六） if(startTime.getTime() > firstday_of_week && startTime.getTime() < lastday_of_week){ // 課程結束時間 Date endTime = (Date) m.get("endAt"); // 存放課程開始的 hour、minute Map saveStartHourAndMinute = new HashMap(); // 存放課程結束的 hour、minute Map saveEndHourAndMinute = new HashMap(); // 條數 Map<String, Map> number_of_bars = new HashMap(); // 課程開始時間 hour:minute String[] startHAndM = (TimeUtils.getDateString(startTime, "HH:mm")).split(":"); Integer startHour = Integer.parseInt(startHAndM[0]); Integer startMinute = Integer.parseInt(startHAndM[1]); saveStartHourAndMinute.put("h", startHour); saveStartHourAndMinute.put("m", startMinute); // 課程結束時間 hour:minute String[] endHAndM = (TimeUtils.getDateString(endTime, "HH:mm")).split(":"); Integer endHour = Integer.parseInt(endHAndM[0]); Integer endMinute = Integer.parseInt(endHAndM[1]); saveEndHourAndMinute.put("h", endHour); saveEndHourAndMinute.put("m", endMinute); // 第一天00:00:00 - 23:59:59 if(startTime.getTime() > firstday_of_week && startTime.getTime() < secondday_of_week){ number_of_bars.put("startAt", saveStartHourAndMinute); number_of_bars.put("endAt", saveEndHourAndMinute); // 往firstDay新增條數 firstDay.add(firstDay.size(), number_of_bars); } else if(startTime.getTime() > secondday_of_week && startTime.getTime() < thirdday_of_week){ // 第二天00:00:00 - 23:59:59 number_of_bars.put("startAt", saveStartHourAndMinute); number_of_bars.put("endAt", saveEndHourAndMinute); // 往secondDay新增條數 secondDay.add(secondDay.size(), number_of_bars); } else if(startTime.getTime() > thirdday_of_week && startTime.getTime() < fourday_of_week){ // 第三天00:00:00 - 23:59:59 number_of_bars.put("startAt", saveStartHourAndMinute); number_of_bars.put("endAt", saveEndHourAndMinute); // 往thirdDay新增條數 thirdDay.add(thirdDay.size(), number_of_bars); } else if(startTime.getTime() > fourday_of_week && startTime.getTime() < fifthday_of_week){ // 第四天00:00:00 - 23:59:59 number_of_bars.put("startAt", saveStartHourAndMinute); number_of_bars.put("endAt", saveEndHourAndMinute); // 往fourthDay新增條數 fourthDay.add(fourthDay.size(), number_of_bars); } else if(startTime.getTime() > fifthday_of_week && startTime.getTime() < sixday_of_week){ // 第五天00:00:00 - 23:59:59 number_of_bars.put("startAt", saveStartHourAndMinute); number_of_bars.put("endAt", saveEndHourAndMinute); // 往fifthDay新增條數 fifthDay.add(fifthDay.size(), number_of_bars); } else if(startTime.getTime() > sixday_of_week && startTime.getTime() < seventh_of_week){ // 第六天00:00:00 - 23:59:59 number_of_bars.put("startAt", saveStartHourAndMinute); number_of_bars.put("endAt", saveEndHourAndMinute); // 往sixthDay新增條數 sixthDay.add(sixthDay.size(), number_of_bars); } else if(startTime.getTime() > seventh_of_week && startTime.getTime() < lastday_of_week){ // 第七天00:00:00 - 23:59:59 number_of_bars.put("startAt", saveStartHourAndMinute); number_of_bars.put("endAt", saveEndHourAndMinute); // 往seventhDay新增條數 seventhDay.add(seventhDay.size(), number_of_bars); } } } } // 往week中新增週日到週一的資料 weekList.add(0, firstDay); weekList.add(1, secondDay); weekList.add(2, thirdDay); weekList.add(3, fourthDay); weekList.add(4, fifthDay); weekList.add(5, sixthDay); weekList.add(6, seventhDay); // 往返回結果集中新增week map.put("week", weekList); return map; }