weaver-bjcj/src/com/engine/bjcj220907/utils/BjcjCommonUtils.java

package com.engine.bjcj220907.utils;

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

/**
 * @author Harryxzy
 * @date 2022/09/26 13:55
 * @description
 */
public class BjcjCommonUtils {

    /***
     * @description 获取当前calendar
     * @return Calendar
     * @author Harryxzy
     * @date 2022/9/26 14:44
     */
    public static Calendar getNowCalendar(){
        Date date = new Date();
        Calendar cal = Calendar.getInstance();
        cal.setTime(date);
        return cal;
    }

    /***
     * @description 根据考勤所属月获取考勤开始日期
     * @return Calendar
     * @author Harryxzy
     * @date 2022/9/14 21:57
     */
    public static Calendar getStartAttendanceCal(Date bonusMonth){
        Calendar startAttendanceCal = Calendar.getInstance();
        startAttendanceCal.setTime(bonusMonth);
        startAttendanceCal.add(Calendar.MONTH,-1);
        if(startAttendanceCal.getActualMaximum(Calendar.DAY_OF_MONTH) == 28){
            // 2月只有28天的情况（从3.1开始）
            startAttendanceCal.add(Calendar.MONTH, 1);
            startAttendanceCal.set(Calendar.DAY_OF_MONTH, 1);
            startAttendanceCal.set(Calendar.HOUR_OF_DAY, 0);
            startAttendanceCal.set(Calendar.MINUTE, 0);
            startAttendanceCal.set(Calendar.SECOND, 0);
            startAttendanceCal.set(Calendar.MILLISECOND, 0);
        }else{
            startAttendanceCal.set(Calendar.DAY_OF_MONTH, 29);
            startAttendanceCal.set(Calendar.HOUR_OF_DAY, 0);
            startAttendanceCal.set(Calendar.MINUTE, 0);
            startAttendanceCal.set(Calendar.SECOND, 0);
            startAttendanceCal.set(Calendar.MILLISECOND, 0);
        }
        return startAttendanceCal;
    }


    /***
     * @description 根据考勤所属月获取考勤结束日期
     * @return Calendar
     * @author Harryxzy
     * @date 2022/9/14 21:57
     */
    public static Calendar getEndAttendanceCal(Date bonusMonth){
        Calendar endAttendanceCal = Calendar.getInstance();
        endAttendanceCal.setTime(bonusMonth);
        endAttendanceCal.set(Calendar.DAY_OF_MONTH,28);
        endAttendanceCal.set(Calendar.HOUR_OF_DAY, 23);
        endAttendanceCal.set(Calendar.MINUTE, 59);
        endAttendanceCal.set(Calendar.SECOND, 59);
        endAttendanceCal.set(Calendar.MILLISECOND, 999);
        return endAttendanceCal;
    }


    /**
     * @description 获取2个时间段中有多少天
     * @return Long
     * @author Harryxzy
     * @date 2022/9/11 20:12
     */
    public static int getDays(Date startDate,Date endDate) {
        int days = (int)( (endDate.getTime() - startDate.getTime()) / (1000 * 60 * 60 * 24) + 1);
        return days;
    }

    /**
     * @description 判断某一天是否在某一个时间区间内
     * @return Long
     * @author Harryxzy
     * @date 2022/9/11 20:12
     */
    public static boolean isBetween(Date now,Date startDate,Date endDate) {
        if( (now.after(startDate) || now.equals(startDate)) && ( (now.before(endDate) || now.equals(endDate)) )){
            return true;
        }
        return false;
    }

    public static boolean isBeforeMonth(Date a,Date b){

        try {
            if(a == null || b == null){
                return false;
            }
            SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM");
            SimpleDateFormat sdf2 = new SimpleDateFormat("yyyy-MM-dd");
            Date formatA = sdf.parse(sdf2.format(a));
            Date formatB = sdf.parse(sdf2.format(b));
            if( formatA.before(formatB) ){
                return true;
            }
            return false;
        }catch (Exception e){

        }
        return false;
    }

    public static boolean isEqualsMonth(Date a,Date b){

        try {
            if(a == null || b == null){
                return false;
            }
            SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM");
            SimpleDateFormat sdf2 = new SimpleDateFormat("yyyy-MM-dd");
            Date formatA = sdf.parse(sdf2.format(a));
            Date formatB = sdf.parse(sdf2.format(b));
            if( formatA.equals(formatB) ){
                return true;
            }
            return false;
        }catch (Exception e){

        }
        return false;
    }

}