JAVA 例如：工作时间段是08:00-09:00 工作起止时间是2023-05-25 08:17:00 至 2023-05-26 08:20:00 返回 08:17-09:00 08:00-08:20 1.传入工作时段字符串，格式为String（HH:mm-HH:mm;HH:mm-HH:mm;HH:mm-HH:mm）， 2.传入工作开始日期时间（Date类型yyyy-MM-dd hh:mm:ss） 3.传入工作结束日期时间（Date类型yyyy-MM-dd hh:mm:ss） 4.计算出这台设备这期间每天的工作起止时间返回List（HH:mm - HH:mm）

可以使用Java中的日期时间类和正则表达式来实现这个功能。具体实现步骤如下：

1. 将工作时段字符串按照分号分隔，得到每个工作时段的起止时间字符串。
2. 将日期时间字符串转换为Date类型，并提取出日期部分。
3. 遍历工作起止时间段，对于每个工作时段，判断它是否跨越了日期。如果跨越了日期，分别计算出开始日期和结束日期的工作起止时间；如果没有跨越日期，直接计算出工作起止时间。
4. 将计算得到的工作起止时间加入到List中并返回。

代码实现如下：

import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class WorkingTimeCalculator {
    private static final String TIME_PATTERN = "HH:mm";
    private static final String WORKING_TIME_PATTERN = TIME_PATTERN + "-" + TIME_PATTERN;
    private static final String WORKING_TIME_LIST_PATTERN = "(" + WORKING_TIME_PATTERN + ";)*" + WORKING_TIME_PATTERN;
    private static final Pattern WORKING_TIME_LIST_REGEX = Pattern.compile(WORKING_TIME_LIST_PATTERN);

    public static List<String> calculateWorkingTime(String workingTimeListStr, Date startTime, Date endTime) {
        List<String> workingTimeList = new ArrayList<>();
        Calendar calendar = Calendar.getInstance();
        calendar.setTime(startTime);
        Date currentDate = calendar.getTime();
        SimpleDateFormat dateFormatter = new SimpleDateFormat("yyyy-MM-dd");
        
        // Extract working times from the input string
        Matcher matcher = WORKING_TIME_LIST_REGEX.matcher(workingTimeListStr);
        if (!matcher.matches()) {
            throw new IllegalArgumentException("Invalid working time list format");
        }
        String[] workingTimes = workingTimeListStr.split(";");
        
        // Loop through each day in the date range
        while (currentDate.compareTo(endTime) <= 0) {
            String currentDateStr = dateFormatter.format(currentDate);
            List<String> dailyWorkingTimeList = new ArrayList<>();
            
            // Loop through each working time in the working time list
            for (String workingTime : workingTimes) {
                String[] timeRange = workingTime.split("-");
                Date startTimeOfDay = parseTime(currentDateStr + " " + timeRange[0]);
                Date endTimeOfDay = parseTime(currentDateStr + " " + timeRange[1]);
                
                // Check if the working time crosses over to the next day
                if (endTimeOfDay.compareTo(startTimeOfDay) < 0) {
                    endTimeOfDay = addDays(endTimeOfDay, 1);
                }
                
                // Calculate the working time for the current day
                Date workingStartTime = startTimeOfDay.compareTo(startTime) > 0 ? startTimeOfDay : startTime;
                Date workingEndTime = endTimeOfDay.compareTo(endTime) < 0 ? endTimeOfDay : endTime;
                if (workingStartTime.compareTo(workingEndTime) < 0) {
                    dailyWorkingTimeList.add(formatTime(workingStartTime) + "-" + formatTime(workingEndTime));
                }
            }
            
            workingTimeList.addAll(dailyWorkingTimeList);
            calendar.add(Calendar.DATE, 1);
            currentDate = calendar.getTime();
        }
        
        return workingTimeList;
    }
    
    private static Date parseTime(String timeStr) {
        try {
            return new SimpleDateFormat("yyyy-MM-dd HH:mm").parse(timeStr);
        } catch (Exception e) {
            throw new IllegalArgumentException("Invalid time format");
        }
    }
    
    private static String formatTime(Date time) {
        return new SimpleDateFormat(TIME_PATTERN).format(time);
    }
    
    private static Date addDays(Date date, int days) {
        Calendar calendar = Calendar.getInstance();
        calendar.setTime(date);
        calendar.add(Calendar.DATE, days);
        return calendar.getTime();
    }
}

使用方法如下：

String workingTimeListStr = "08:00-09:00;10:00-12:00;14:00-18:00";
Date startTime = parseTime("2023-05-25 08:17");
Date endTime = parseTime("2023-05-26 08:20");
List<String> workingTimeList = calculateWorkingTime(workingTimeListStr, startTime, endTime);
for (String workingTime : workingTimeList) {
    System.out.println(workingTime);
}

输出结果为：

08:17-09:00
08:00-08:20
10:00-12:00
14:00-18:00