LocalDate 简单工具类（根据日期，获取近两周的相关日期）

「爱情、让人受尽委屈。」 2021-12-22 06:09 723阅读 0赞

package com.betawoo.admin.commons.utils;
    
    import java.time.DayOfWeek;
    import java.time.LocalDate;
    import java.time.format.DateTimeFormatter;
    import java.util.HashMap;
    import java.util.Map;
    
    public class WeekDateUtil {
    
        public static void main(String[] args) {
            System.out.println(getWeeksInfo("2019-02-02"));
        }
    
        /**
         * 根据日期，获取近两周的相关日期
         */
        public static Map getWeeksInfo(String dateStr){
    
            Map result = new HashMap();
    
            DateTimeFormatter df = DateTimeFormatter.ofPattern("yyyy-MM-dd");
            LocalDate ld = LocalDate.parse(dateStr,df);
    
            //当前这周一
            LocalDate dateStart = ld
                    .with(DayOfWeek.MONDAY);
            //下周周日
            LocalDate dateEnd = ld.minusWeeks(-1)
                    .with(DayOfWeek.SUNDAY);
    
            //近两周开始和结束的日期
            result.put("dateStart",dateStart.toString());
            result.put("dateEnd",dateEnd.toString());
            result.put("dateStartDate",dateStart);
            result.put("dateEndDate",dateEnd);
    
            //开始/结束的号数
            result.put("start",dateStart.getDayOfMonth());
            result.put("end",dateEnd.getDayOfMonth());
    
            //是否跨月
            boolean beyond = false;
            if(!dateStart.getMonth().equals(dateEnd.getMonth())){
                beyond = true;
                System.out.println("跨月");
                // 获取上一个月总天数
                result.put("lengthOfMonth",dateStart.lengthOfMonth());
            }else{
                System.out.println("跨月");
            }
            result.put("beyondMonth",beyond);
            return result;
        }
    }