Java计算两个日期之间的工作时长【包含节假日、补班、周末】

目的：用来计算两个日期之间的工作时长
说明：其中节假日、工作日工作时间需要从配置表中获取
直接上代码

public static void main(String[] args) throws Exception {
        calTime("2023-09-23 07:30:00", "2023-09-25 18:30:05");
    }
    /**
     * 计算两个日期间的工作时长
     *
     * @param begintime yyyy-MM-dd HH:mm:ss
     * @param endTime   yyyy-MM-dd HH:mm:ss
     * @return 工作时长/毫秒
     */
    public static long calTime(String begintime, String endTime) {
        Date startDate = DateUtil.parse(begintime);//节点到达时间
        Date endDate = DateUtil.parse(endTime);//当前时间
        int compareNum = DateUtil.compare(startDate, endDate);
        if (compareNum > 0) {
            String temp = endTime;
            endTime = begintime;
            begintime = temp;
        }
        startDate = DateUtil.parse(begintime);//节点到达时间
        endDate = DateUtil.parse(endTime);//当前时间
        System.out.println("计算前-hours-" + (((DateUtil.between(startDate, endDate, DateUnit.MS) * 1.0 / 3600000) - 3) > 0));

        long millis = DateUtil.between(startDate, endDate, DateUnit.MS);
        System.out.println("计算前-millis-" + millis);
        System.out.println("计算前-" + DateUtil.formatBetween(millis, BetweenFormater.Level.SECOND));
        //开始日期当天
        String beginDateStr = DateUtil.format(DateUtil.parse(begintime), "yyyy-MM-dd");
        String beginTimeStr = DateUtil.format(DateUtil.parse(begintime), "HH:mm:ss");
        //截止日期当天
        String endDateStr = DateUtil.format(DateUtil.parse(endTime), "yyyy-MM-dd");
        String endTimeStr = DateUtil.format(DateUtil.parse(endTime), "HH:mm:ss");
        long subMills = 0;//需要减去的时长
        Map<String, Map<String, String>> workDayInfoMap = initWorkdayInfo();
        // 同一天
        if (beginDateStr.equals(endDateStr)) {
            if (isWorkingDay(beginDateStr)) {
                //工作日
                long tempMills = calWorkDayRestMills(workDayInfoMap, beginDateStr, beginTimeStr, endTimeStr);
                subMills += tempMills;
            } else {
                subMills = millis;//同一天且非工作日
            }
        } else {
            long daysLen = DateUtil.between(DateUtil.parse(beginDateStr), DateUtil.parse(endDateStr), DateUnit.DAY, false);//相差天数
            //处理开始日期
            if (isWorkingDay(beginDateStr)) {
                long tempMills = calWorkDayRestMills(workDayInfoMap, beginDateStr, beginTimeStr, "23:59:59") + 1000;
                subMills += tempMills;
            } else {
                long tempMills = DateUtil.between(DateUtil.parse(begintime), DateUtil.parse(beginDateStr + " 23:59:59"), DateUnit.MS) + 1000;
                subMills += tempMills;
            }
            //处理中间日期
            if (daysLen > 1) {
                for (int i = 1; i < daysLen; i++) {
                    String tempDateStr = DateUtil.format(DateUtil.offsetDay(DateUtil.parse(begintime), i), "yyyy-MM-dd");
                    if (isWorkingDay(tempDateStr)) {
                        long tempMills = calWorkDayRestMills(workDayInfoMap, tempDateStr, "00:00:00", "23:59:59") + 1000;
                        subMills += tempMills;
                    } else {
                        long tempMills = DateUtil.between(DateUtil.parse(tempDateStr + " 00:00:00")
                                , DateUtil.parse(tempDateStr + " 23:59:59"), DateUnit.MS) + 1000;
                        subMills += tempMills;
                    }
                }
            }
            //处理截止日期
            if (isWorkingDay(endDateStr)) {
                long tempMills = calWorkDayRestMills(workDayInfoMap, endDateStr, "00:00:00", endTimeStr);//工时长
                subMills += tempMills;
            } else {
                long tempMills = DateUtil.between(DateUtil.parse(endDateStr + " 00:00:00"), DateUtil.parse(endTime), DateUnit.MS);
                subMills += tempMills;
            }
        }
        System.out.println("计算后-subMills-" + subMills);
        millis = millis - subMills;
        System.out.println("计算后-millis-" + millis);
        System.out.println("计算后-" + DateUtil.formatBetween(millis, BetweenFormater.Level.SECOND));
        return millis;
    }
    /**
     * 计算工作日，开始时间--截止时间知之间的非工作日时间长【日期是同一天，且是工作日】
     *
     * @param workDayInfoMap 工作日工作时间信息
     * @param dateStr        yyyy-MM-dd
     * @param beginTimeStr   HH:mm:ss
     * @param endTimeStr     HH:mm:ss
     * @return
     */
    private static Long calWorkDayRestMills(Map<String, Map<String, String>> workDayInfoMap, String dateStr, String beginTimeStr, String endTimeStr) {
        if (workDayInfoMap == null || workDayInfoMap.size() == 0
                || dateStr == null || beginTimeStr == null || endTimeStr == null) {
            return null;
        }
        //step1:判断时间大小
        Integer hourB = DateUtil.hour(DateUtil.parse(beginTimeStr), true);
        Integer hourE = DateUtil.hour(DateUtil.parse(endTimeStr), true);
        if (hourB > hourE) {
            String temp = endTimeStr;
            endTimeStr = beginTimeStr;
            beginTimeStr = temp;
        }
        //step2:获取两个时间的时间差，单位毫秒
        long allMills = DateUtil.between(DateUtil.parse(dateStr + " " + beginTimeStr)
                , DateUtil.parse(dateStr + " " + endTimeStr), DateUnit.MS);
        System.out.println("计算中-allMills-" + allMills);
        long workMills1 = 0;
        long workMills2 = 0;
        //step3：获取月份及工作日信息
        Integer month = 1 + DateUtil.month(DateUtil.parse(dateStr));//DateUtil.month从0开始算
        String monthStr = String.valueOf(month);
        if (month < 10) {
            monthStr = "0" + month;
        }
        Map<String, String> workInfo = workDayInfoMap.get(monthStr);
        if (workInfo == null) {
            return null;
        }
        String amBegin = workInfo.get("amBegin");
        String amEnd = workInfo.get("amEnd");
        String pmBegin = workInfo.get("pmBegin");
        String pmEnd = workInfo.get("pmEnd");
        //step4:开始时间、结束时间和工作日时间对比
        int bcr1 = DateUtil.compare(DateUtil.parse(beginTimeStr), DateUtil.parse(amBegin));//1表示前面大，0相等，-1表示前面小
        int bcr2 = DateUtil.compare(DateUtil.parse(beginTimeStr), DateUtil.parse(amEnd));
        int bcr3 = DateUtil.compare(DateUtil.parse(beginTimeStr), DateUtil.parse(pmBegin));
        int bcr4 = DateUtil.compare(DateUtil.parse(beginTimeStr), DateUtil.parse(pmEnd));

        int ecr1 = DateUtil.compare(DateUtil.parse(endTimeStr), DateUtil.parse(amBegin));
        int ecr2 = DateUtil.compare(DateUtil.parse(endTimeStr), DateUtil.parse(amEnd));
        int ecr3 = DateUtil.compare(DateUtil.parse(endTimeStr), DateUtil.parse(pmBegin));
        int ecr4 = DateUtil.compare(DateUtil.parse(endTimeStr), DateUtil.parse(pmEnd));
        //step4：获取工作时长
        if (bcr1 < 0) {//上午上班前
            if (ecr1 < 0) {//上午上班前--无需处理
            } else if (ecr1 >= 0 && ecr2 < 0) {//上午上班区间
                workMills1 = DateUtil.between(DateUtil.parse(dateStr + " " + amBegin)
                        , DateUtil.parse(dateStr + " " + endTimeStr), DateUnit.MS);
            } else if (ecr2 >= 0 && ecr3 < 0) {//中午休息区间
                workMills1 = DateUtil.between(DateUtil.parse(dateStr + " " + amBegin)
                        , DateUtil.parse(dateStr + " " + amEnd), DateUnit.MS);
            } else if (ecr3 >= 0 && ecr4 < 0) {//下午上班区间
                workMills1 = DateUtil.between(DateUtil.parse(dateStr + " " + amBegin)
                        , DateUtil.parse(dateStr + " " + amEnd), DateUnit.MS);
                workMills2 = DateUtil.between(DateUtil.parse(dateStr + " " + pmBegin)
                        , DateUtil.parse(dateStr + " " + endTimeStr), DateUnit.MS);
            } else if (ecr4 >= 0) {//下午下班时间
                workMills1 = DateUtil.between(DateUtil.parse(dateStr + " " + amBegin)
                        , DateUtil.parse(dateStr + " " + amEnd), DateUnit.MS);
                workMills2 = DateUtil.between(DateUtil.parse(dateStr + " " + pmBegin)
                        , DateUtil.parse(dateStr + " " + pmEnd), DateUnit.MS);
            }
        } else if (bcr1 >= 0 && bcr2 < 0) {//上午上班区间
            if (ecr1 >= 0 && ecr2 < 0) {//上午上班区间
                workMills1 = DateUtil.between(DateUtil.parse(dateStr + " " + beginTimeStr)
                        , DateUtil.parse(dateStr + " " + endTimeStr), DateUnit.MS);
            } else if (ecr2 >= 0 && ecr3 < 0) {//中午休息区间
                workMills1 = DateUtil.between(DateUtil.parse(dateStr + " " + beginTimeStr)
                        , DateUtil.parse(dateStr + " " + amEnd), DateUnit.MS);
            } else if (ecr3 >= 0 && ecr4 < 0) {//下午上班区间
                workMills1 = DateUtil.between(DateUtil.parse(dateStr + " " + beginTimeStr)
                        , DateUtil.parse(dateStr + " " + amEnd), DateUnit.MS);
                workMills2 = DateUtil.between(DateUtil.parse(dateStr + " " + pmBegin)
                        , DateUtil.parse(dateStr + " " + endTimeStr), DateUnit.MS);
            } else if (ecr4 >= 0) {//下午下班时间
                workMills1 = DateUtil.between(DateUtil.parse(dateStr + " " + beginTimeStr)
                        , DateUtil.parse(dateStr + " " + amEnd), DateUnit.MS);
                workMills2 = DateUtil.between(DateUtil.parse(dateStr + " " + pmBegin)
                        , DateUtil.parse(dateStr + " " + pmEnd), DateUnit.MS);
            }
        } else if (bcr2 >= 0 && bcr3 < 0) {//中午休息区间
            if (ecr2 >= 0 && ecr3 < 0) {//中午休息区间--无需处理
            } else if (ecr3 >= 0 && ecr4 < 0) {//下午上班区间
                workMills2 = DateUtil.between(DateUtil.parse(dateStr + " " + pmBegin)
                        , DateUtil.parse(dateStr + " " + endTimeStr), DateUnit.MS);
            } else if (ecr4 >= 0) {//下午下班时间
                workMills2 = DateUtil.between(DateUtil.parse(dateStr + " " + pmBegin)
                        , DateUtil.parse(dateStr + " " + pmEnd), DateUnit.MS);
            }
        } else if (bcr3 >= 0 && bcr4 < 0) {//下午上班区间
            if (ecr3 >= 0 && ecr4 < 0) {//下午上班区间
                workMills2 = DateUtil.between(DateUtil.parse(dateStr + " " + beginTimeStr)
                        , DateUtil.parse(dateStr + " " + endTimeStr), DateUnit.MS);
            } else if (ecr4 >= 0) {//下午下班时间
                workMills2 = DateUtil.between(DateUtil.parse(dateStr + " " + beginTimeStr)
                        , DateUtil.parse(dateStr + " " + pmEnd), DateUnit.MS);
            }
        } else if (bcr4 >= 0) {//下午下班时间--无需处理
        }
        System.out.println("计算中-workMills1-" + workMills1);
        System.out.println("计算中-workMills2-" + workMills2);
        long noWorkMills = allMills - workMills1 - workMills2;
        System.out.println("计算中-(allMills - workMills1 - workMills2)-" + noWorkMills);
        return noWorkMills;
    }
    /**
     * 判断是否为工作日
     *
     * @param dateStr yyyy-MM-dd
     * @return
     */
    public static Boolean isWorkingDay(String dateStr) {

        List<String> holiday = initHoliday();
        List<String> extraWorkDay = initExtraWorkDay();
        //补班日
        if (extraWorkDay.contains(dateStr)) {
            return true;
        }
        //节假日
        if (holiday.contains(dateStr)) {
            return false;
        }
        //hutool工具jar,5.3.0版本【1是工作日，2-7表示周一到周六】
        int week = DateUtil.dayOfWeek(DateUtil.parse(dateStr));
        if (week == 1 || week == 7) {
            return false;//周末
        }
        return true;
    }

    /**
     * 初始化节假日【生产环境中请使用配置表】
     * 可通过接口获取每年节假日保存到配置表【文档--https://timor.tech/api/holiday】
     * String url = "https://timor.tech/api/holiday/year/2023/";
     * String rsa = HttpUtil.get(url);
     *
     * @return
     */
    public static List<String> initHoliday() {
        List<String> holiday = new ArrayList<>();
        holiday.add("2023-01-28");
        holiday.add("2023-12-31");
        holiday.add("2023-10-06");
        holiday.add("2023-10-05");
        holiday.add("2023-10-04");
        holiday.add("2023-10-03");
        holiday.add("2023-10-02");
        holiday.add("2023-10-01");
        holiday.add("2023-09-30");
        holiday.add("2023-09-29");
        holiday.add("2023-06-24");
        holiday.add("2023-06-23");
        holiday.add("2023-06-22");
        holiday.add("2023-05-03");
        holiday.add("2023-05-02");
        holiday.add("2023-05-01");
        holiday.add("2023-04-30");
        holiday.add("2023-04-29");
        holiday.add("2023-04-05");
        holiday.add("2023-01-27");
        holiday.add("2023-01-26");
        holiday.add("2023-01-25");
        holiday.add("2023-01-24");
        holiday.add("2023-01-23");
        holiday.add("2023-01-22");
        holiday.add("2023-01-21");
        holiday.add("2023-01-02");
        holiday.add("2023-01-01");
        return holiday;
    }

    /**
     * 初始化额外加班日【生产环境中请使用配置表】
     * 可通过接口获取每年节假日保存到配置表【文档--https://timor.tech/api/holiday】
     * String url = "https://timor.tech/api/holiday/year/2023/";
     *
     * @return
     */
    public static List<String> initExtraWorkDay() {
        List<String> extraWorkDay = new ArrayList<>();
        extraWorkDay.add("2023-10-08");
        extraWorkDay.add("2023-10-07");
        extraWorkDay.add("2023-06-25");
        extraWorkDay.add("2023-05-06");
        extraWorkDay.add("2023-04-23");
        extraWorkDay.add("2023-01-29");
        extraWorkDay.add("2023-01-28");
        return extraWorkDay;
    }

    /**
     * 初始化工作日工作时间【生产环境中请使用配置表】
     *
     * @return
     */
    public static Map<String, Map<String, String>> initWorkdayInfo() {
        Map<String, Map<String, String>> workDayInfoMap = new HashMap<>();
        //冬令时
        Map<String, String> map = new HashMap<>();
        map.put("amBegin", "08:00:00");
        map.put("amEnd", "12:00:00");
        map.put("pmBegin", "14:00:00");
        map.put("pmEnd", "17:30:00");
        workDayInfoMap.put("10", map);
        workDayInfoMap.put("11", map);
        workDayInfoMap.put("12", map);
        workDayInfoMap.put("01", map);
        workDayInfoMap.put("02", map);
        workDayInfoMap.put("03", map);
        workDayInfoMap.put("04", map);
        //夏令时
        map = new HashMap<>();
        map.put("amBegin", "08:00:00");
        map.put("amEnd", "12:00:00");
        map.put("pmBegin", "14:30:00");
        map.put("pmEnd", "18:00:00");
        workDayInfoMap.put("05", map);
        workDayInfoMap.put("06", map);
        workDayInfoMap.put("07", map);
        workDayInfoMap.put("08", map);
        workDayInfoMap.put("09", map);
        return workDayInfoMap;
    }
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