java-insagent-pc/src/main/java/com/ydtech/modules/admin/utils/SliceUpDateUtil.java

package com.ydtech.modules.admin.utils;

import java.text.SimpleDateFormat;
import java.time.LocalDate;
import java.time.format.DateTimeFormatter;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.util.List;

public class SliceUpDateUtil {

    /**
     * 日期范围 - 切片
     *
     *
     * @param startDate 起始日期
     * @param endDate   结束日期
     * @param type 切片类型 1年  2月  3日  4小时
     * @return          切片日期
     */
    public static List<String> sliceUpDateRange(String startDate, String endDate , int type ) {
        List<String> rs = new ArrayList<>();

        try {
            int dt = Calendar.DATE;
            String pattern = "yyyy-MM-dd";
            if (type==1) {
                pattern = "yyyy";
                dt = Calendar.YEAR;
            } else if (type==2) {
                pattern = "yyyy-MM";
                dt = Calendar.MONTH;
            } else if (type==3) {
                pattern = "yyyy-MM-dd";
                dt = Calendar.DATE;
            }else if (type==4) {
                pattern = "yyyy-MM-dd HH";
                dt = Calendar.HOUR_OF_DAY;
            }
            SimpleDateFormat sd = new SimpleDateFormat(pattern);
            Calendar sc = Calendar.getInstance();
            Calendar ec = Calendar.getInstance();
            sc.setTime(sd.parse(startDate));
            ec.setTime(sd.parse(endDate));
            while (sc.compareTo(ec) < 1) {
                rs.add(sd.format(sc.getTime()));
                sc.add(dt, 1);
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        return rs;
    }
    /**
     *  @version
     *  @author: hxl
     *  @Date: 2024/6/5 17:20
     *  @Description: 获取某年的第一天
     */
    public static String getFirstDayStringByYear(int year) {
        LocalDate firstDayOfYear = LocalDate.of(year, 1, 1);
        DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd");

        String firstDayString = firstDayOfYear.format(formatter);
        return firstDayString;
    }
    /**
     *  @version
     *  @author: hxl
     *  @Date: 2024/6/5 17:20
     *  @Description: 获取某年的最后一天
     */
    public static String getLastDayStringByYear(int year) {
        LocalDate lastDayOfYear = LocalDate.of(year, 12, 31);
        DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd");

        String lastDayString = lastDayOfYear.format(formatter);
        return lastDayString;
    }
    /**
     *  @version
     *  @author: hxl
     *  @Date: 2024/6/5 17:20
     *  @Description: 获取某月的第一天
     */
    public static String getFirstDayStringByMonth(int year,int month) {
        LocalDate firstDayOfMonth = LocalDate.of(year, month, 1);
        DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd");
        String firstDayString = firstDayOfMonth.format(formatter);
        return firstDayString;
    }
    /**
     *  @version
     *  @author: hxl
     *  @Date: 2024/6/5 17:20
     *  @Description: 获取某月的最后一天
     */
    public static String getLastDayStringByMonth(int year,int month) {
        LocalDate firstDayOfMonth = LocalDate.of(year, month, 1);
        LocalDate lastDayOfMonth = firstDayOfMonth.withDayOfMonth(firstDayOfMonth.lengthOfMonth());
        DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd");
        String lastDayString = lastDayOfMonth.format(formatter);
        return lastDayString;
    }
     /**
      *  @version
      *  @author: hxl
      *  @Date: 2024/6/19 11:23
      *  @Description:
      */
     public static String getWeekFirstAndLastDay(Date date,int type){
         Calendar calendar = Calendar.getInstance();
         calendar.setTime(date);
         int dayOfWeek = calendar.get(Calendar.DAY_OF_WEEK);
         int diff = Calendar.MONDAY - dayOfWeek;
         if (diff > 0) {
             diff -= 7;
         }
         calendar.add(Calendar.DATE, diff);
         Date firstDayDate = calendar.getTime();
         SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
         calendar.add(Calendar.DATE, 6);
         Date lastDayDate = calendar.getTime();
         String firstDayStr = sdf.format(firstDayDate);
         String lastDayStr = sdf.format(firstDayDate);
         if(type==1){
             return firstDayStr;
         }
         return lastDayStr;
     }
    /**
     *  @version
     *  @author: hxl
     *  @Date: 2024/6/19 11:23
     *  @Description: 获取此月的开始时间和结束时间
     */
    public static String getMonthFirstAndLastDay(Date date,int type){
        Calendar calendar = Calendar.getInstance();
        calendar.setTime(date);
        calendar.set(Calendar.DAY_OF_MONTH, 1);
        Date firstDayDate = calendar.getTime();
        calendar.set(Calendar.DAY_OF_MONTH, calendar.getActualMaximum(Calendar.DAY_OF_MONTH));
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
        Date lastDayDate = calendar.getTime();
        String firstDayStr = sdf.format(firstDayDate);
        String lastDayStr = sdf.format(firstDayDate);
        if(type==1){
            return firstDayStr;
        }
        return lastDayStr;
    }
    /**
     *  @version
     *  @author: hxl
     *  @Date: 2024/6/19 11:23
     *  @Description: 获取进3个月日期
     */
    public static String getThreeMonthFirstAndLastDay(Date date,int type,int monthSize){
        int size=monthSize-1;
        Calendar calendar = Calendar.getInstance();
        calendar.setTime(date);
        calendar.set(Calendar.DAY_OF_MONTH, 1);
        calendar.set(Calendar.DAY_OF_MONTH, calendar.getActualMaximum(Calendar.DAY_OF_MONTH));
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
        //获取当月的最后一天的日期
        Date firstDayDate = calendar.getTime();
        String firstDayStr = sdf.format(firstDayDate);
        String lastDayStr = sdf.format(firstDayDate);
        //获取两个月之前的第一天日期
        calendar.add(Calendar.MONTH,-size);
        calendar.set(Calendar.DAY_OF_MONTH,1);
        Date lastDayDate = calendar.getTime();
        if(type==1){
            return firstDayStr;
        }
        return lastDayStr;
    }
    /**
     *  @version
     *  @author: hxl
     *  @Date: 2024/6/24 11:36
     *  @Description: 过去时间的计算
     */
    public static String getBeforeDay(Date date, int type){
        Calendar c = Calendar.getInstance();
        SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");
        c.setTime(date);
        if(0==type){
        }else if(1==type){
            c.add(Calendar.DATE, - 7);
        }else if(2==type){
            c.add(Calendar.MONTH, -1);
        }else if(3==type){
            c.add(Calendar.MONTH, -3);
        }else if(4==type){
            c.add(Calendar.MONTH, -6);
        }
        return format.format(c.getTime());
    }
    /**
     *  @version
     *  @author: hxl
     *  @Date: 2024/7/31 17:59
     *  @Description: 获取年份的开始时间
     */
    public static String getYearBeginDateStr(int year) {
        Calendar calendar = Calendar.getInstance();
        calendar.set(Calendar.YEAR, year);
        calendar.set(Calendar.MONTH, Calendar.JANUARY);
        calendar.set(Calendar.DAY_OF_MONTH, 1);
        int startYear = calendar.get(Calendar.YEAR);
        int startMonth = calendar.get(Calendar.MONTH)+1;
        int startDay = calendar.get(Calendar.DAY_OF_MONTH);
        String month =startMonth<10?"0"+startMonth: String.valueOf(startMonth);
        String day =startDay<10?"0"+startDay: String.valueOf(startDay);
        return startYear+"-"+month+"-"+day;
    }
    /**
     *  @version
     *  @author: hxl
     *  @Date: 2024/7/31 18:00
     *  @Description: 获取年份的结束时间
     */
    public static String getYearEndDateStr(int year) {
        Calendar calendar = Calendar.getInstance();
        calendar.set(Calendar.YEAR, year);
        calendar.set(Calendar.MONTH, Calendar.DECEMBER);
        calendar.set(Calendar.DAY_OF_MONTH, 31);
        int startYear = calendar.get(Calendar.YEAR);
        int startMonth = calendar.get(Calendar.MONTH)+1;
        int startDay = calendar.get(Calendar.DAY_OF_MONTH);
        String month =startMonth<10?"0"+startMonth: String.valueOf(startMonth);
        String day =startDay<10?"0"+startDay: String.valueOf(startDay);
        return startYear+"-"+month+"-"+day;
    }

    /**
     *  @version
     *  @author: hxl
     *  @Date: 2024/8/5 10:18
     *  @Description:  获取月份的开始时间
     */
    public static String getStartOfMonth(int year, int month) {
        Calendar calendar = Calendar.getInstance();
        calendar.set(year, month - 1, 1);
        calendar.set(Calendar.HOUR_OF_DAY, 0);
        calendar.set(Calendar.MINUTE, 0);
        calendar.set(Calendar.SECOND, 0);
        calendar.set(Calendar.MILLISECOND, 0);
        return new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(calendar.getTime());
    }
    /**
     *  @version
     *  @author: hxl
     *  @Date: 2024/8/5 10:18
     *  @Description: 获取月份的结束时间
     */
    public static String getEndOfMonth(int year, int month) {
        Calendar calendar = Calendar.getInstance();
        calendar.set(year, month - 1, calendar.getActualMaximum(Calendar.DAY_OF_MONTH));
        calendar.set(Calendar.HOUR_OF_DAY, 23);
        calendar.set(Calendar.MINUTE, 59);
        calendar.set(Calendar.SECOND, 59);
        calendar.set(Calendar.MILLISECOND, 999);
        return new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(calendar.getTime());
    }


}