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');
参考：
https://www.cnblogs.com/irishua/p/11128326.html