1、说明：

获取n个工作日后的日期(包含法定节假日、双休日、节后补班)，需要在数据库手动入库当年的法定节假日及节假日调休补班。(也可写在配置文件中读取)。

2、工具类代码

/**

* @author: huangyibo

* @Date: 2021/1/22 22:16

* @Description: 用于查询n个工作日(包含法定节假日、双休日、调休)后的日期

*/

public class HolidayUtils {

private static final Logger logger = LoggerFactory.getLogger(HolidayUtils.class);

private static SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");

/**

* 用于判断n个工作日(排除节假日、周六日包含节后补班数据)后的日期

* @param list 节假日数据源

* @param weekDayList 节后补班数据源

* @param today 计算开始时间

* @param num 多少个工作日 根据需要自行安排

* @return

*/

public static Date getScheduleActiveDate(List list, List weekDayList, Date today, int num) throws ParseException {

String today1 = HolidayUtils.parseDate(today, "yyyy-MM-dd");

Date tomorrow = null;

int delay = 1;

while(delay <= num){

//获取明天的日期

tomorrow = getTomorrow(today);

//当前日期+1即tomorrow,判断是否是节假日,同时要判断是否是周末,都不是则将scheduleActiveDate日期+1,直到循环num次即可------不是节假日不是周末并且不是补班

if((!isWeekend(sdf.format(tomorrow)) && !isHoliday(sdf.format(tomorrow),list)) || isWorkWeekDay(sdf.format(tomorrow),weekDayList)){

if(isWorkWeekDay(sdf.format(tomorrow),weekDayList)){

logger.info("HolidayUtils.getScheduleActiveDate {}: 是节假日调休补班",sdf.format(tomorrow));

}else{

logger.info("HolidayUtils.getScheduleActiveDate {}: 是正常工作日",sdf.format(tomorrow));

}

delay++;

today = tomorrow;

}else if (isHoliday(sdf.format(tomorrow),list)){

// tomorrow = getTomorrow(tomorrow);

today = tomorrow;

logger.info("HolidayUtils.getScheduleActiveDate {}: 是节假日",sdf.format(tomorrow));

}else if(isWeekend(sdf.format(tomorrow))){//是周六日并且不是节后补班

if(!isWorkWeekDay(sdf.format(tomorrow),weekDayList)){

today = tomorrow;

logger.info("HolidayUtils.getScheduleActiveDate {}: 是休息日",sdf.format(tomorrow));

}

}

}

logger.info("HolidayUtils.getScheduleActiveDate, {}后{}个工作日后,日期为:{}",today1,num,sdf.format(today));

return today;

}

/**

* 获取明天的日期

*/

public static Date getTomorrow(Date date){

Calendar calendar = Calendar.getInstance();

calendar.setTime(date);

calendar.add(Calendar.DAY_OF_MONTH, +1);

date = calendar.getTime();

return date;

}

/**

* 判断是否是weekend

*/

public static boolean isWeekend(String dateStr) throws ParseException {

Date date = sdf.parse(dateStr);

Calendar cal = Calendar.getInstance();

cal.setTime(date);

if(cal.get(Calendar.DAY_OF_WEEK) == Calendar.SATURDAY || cal.get(Calendar.DAY_OF_WEEK) == Calendar.SUNDAY){

return true;

} else{

return false;

}

}

/**

* 判断是否是holiday

*/

public static boolean isHoliday(String dateStr, List list) {

if(!CollectionUtils.isEmpty(list)){

for(int i = 0; i < list.size(); i++){

if(dateStr.equals(list.get(i))){

return true;

}

}

}

return false;

}

/**

* 判断是否是补班

*/

public static boolean isWorkWeekDay(String dateStr, List list) throws ParseException {

if(!CollectionUtils.isEmpty(list)){

for(int i = 0; i < list.size(); i++){

if(dateStr.equals(list.get(i))){

return true;

}

}

}

return false;

}

/**

* 把日期格式化成字符串

* @param date

* @param format 例: yyyy-MM-dd

* @return

*/

public static String parseDate(Date date, String format) {

SimpleDateFormat formater = new SimpleDateFormat(format);

return formater.format(date);

}

}

3、测试调用

public static void main(String[] args) {

WorkDayQuery workDayQuery = new WorkDayQuery();

Calendar calendar = Calendar.getInstance();

String nowYear = String.valueOf(calendar.get(Calendar.YEAR));

workDayQuery.setWorkYear(nowYear);

//获取当前年和下一年的节假日和周末补班日期

List workDayList = workDayFeign.queryWorkDayByYear(workDayQuery);

SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");

//节假日集合

List holidayList = workDayList.stream()

.filter(holiday -> "0".equals(holiday.getType()))

.map(holiday -> sdf.format(holiday.getWorkDay())).collect(Collectors.toList());

//周末补班日集合

List workdayList = workDayList.stream()

.filter(workDay -> "1".equals(workDay.getType()))

.map(workDay -> sdf.format(workDay.getWorkDay())).collect(Collectors.toList());

try {

Date scheduleActiveDate = HolidayUtils.getScheduleActiveDate(holidayList, workdayList, new Date(), 5);

} catch (ParseException e) {

logger.error("工作日计算异常", e);

}

}

4、sql脚本

DROP TABLE IF EXISTS `holiday`;

CREATE TABLE `holiday` (

`GUID` varchar(36) COLLATE utf8_bin NOT NULL,

`WORKDAY` varchar(10) COLLATE utf8_bin DEFAULT NULL,

`TYPE` varchar(1) COLLATE utf8_bin DEFAULT NULL COMMENT '0:法定节假日；1 节假日调休补班(如某个节假日前后周六日上班的情况)',

PRIMARY KEY (`GUID`)

) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_bin COMMENT='此表需每年根据法定节假日具体时间更新一次';

-- ----------------------------

-- Records of holiday

-- ----------------------------

INSERT INTO `holiday` VALUES ('1', '2019-05-01', '0');

INSERT INTO `holiday` VALUES ('10', '2019-09-15', '0');

INSERT INTO `holiday` VALUES ('11', '2019-10-01', '0');

INSERT INTO `holiday` VALUES ('12', '2019-10-02', '0');

INSERT INTO `holiday` VALUES ('13', '2019-10-03', '0');

INSERT INTO `holiday` VALUES ('14', '2019-10-04', '0');

INSERT INTO `holiday` VALUES ('15', '2019-10-05', '0');

INSERT INTO `holiday` VALUES ('16', '2019-10-06', '0');

INSERT INTO `holiday` VALUES ('17', '2019-10-07', '0');

INSERT INTO `holiday` VALUES ('18', '2019-04-28', '1');

INSERT INTO `holiday` VALUES ('19', '2019-05-05', '1');

INSERT INTO `holiday` VALUES ('2', '2019-05-02', '0');

INSERT INTO `holiday` VALUES ('20', '2019-09-29', '1');

INSERT INTO `holiday` VALUES ('21', '2019-10-12', '1');

INSERT INTO `holiday` VALUES ('3', '2019-05-03', '0');

INSERT INTO `holiday` VALUES ('4', '2019-05-04', '0');

INSERT INTO `holiday` VALUES ('5', '2019-06-07', '0');

INSERT INTO `holiday` VALUES ('6', '2019-06-08', '0');

INSERT INTO `holiday` VALUES ('7', '2019-06-09', '0');

INSERT INTO `holiday` VALUES ('8', '2019-09-13', '0');

INSERT INTO `holiday` VALUES ('9', '2019-09-14', '0');