两个时间按照固定时间切割_天真ya的博客

两个时间按照固定区间切割:

package com.xn.bmpos.manager.bmposmanager;

import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.util.List;

/**
 * @Author: zly
 * @Date: 2019/6/2 17:08
 */
public class DateUtil {
    /**
     * 切割時間段
     *
     * @param dateType  交易類型 M/D/H/m/s -->每月/每天/每小時/每分鐘
     * @param start yyyy-MM-dd HH:mm:ss
     * @param end   yyyy-MM-dd HH:mm:ss
     * @return
     */
    public static List<String> cutDate(String dateType, String start, String end) {
        try {
            SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
            Date dBegin = sdf.parse(start);
            Date dEnd = sdf.parse(end);
            return findDates(dateType, dBegin, dEnd);
        } catch (Exception e) {
            System.out.println(e);
        }
        return null;
    }
    public static List<String> findDates(String dateType, Date dBegin, Date dEnd) throws Exception {
        List<String> listDate = new ArrayList<>();
        Calendar calBegin = Calendar.getInstance();
        calBegin.setTime(dBegin);
        Calendar calEnd = Calendar.getInstance();
        calEnd.setTime(dEnd);
        while (calEnd.after(calBegin)) {
            switch (dateType) {
                case "M":
                    calBegin.add(Calendar.MONTH, 1);
                    break;
                case "D":
                    calBegin.add(Calendar.DAY_OF_YEAR, 1);break;
                case "H":
                    calBegin.add(Calendar.HOUR, 1);break;
                case "m":
                    calBegin.add(Calendar.MINUTE, 15);break;
                case "S":
                    calBegin.add(Calendar.SECOND, 1);break;
            }
            if (calEnd.after(calBegin))
                listDate.add(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(calBegin.getTime()));
            else
                listDate.add(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(calEnd.getTime()));
        }
        return listDate;
    }
}
package com.xn.bmpos.man