huanghongfa
2021-10-09 1d1ee8c13e61958c6d5fc1a6bc3b819c68c19c04
springcloud_k8s_panzhihuazhihuishequ/common/src/main/java/com/panzhihua/common/utlis/DateUtils.java
@@ -888,10 +888,12 @@
    }
    public static void main(String[] args) throws Exception {
        // Date date= new Date();
        // Date after = new Date();
        // System.out.println(getFirstDayOfMonthString());
        // System.out.println(getDayOfMonthString());
         Date date= getLastMonthFirst();
         Date after = getLastMonthEnd();
         System.out.println(date);
         System.out.println(after);
    }
    /**
@@ -934,4 +936,30 @@
        Date currYearFirst = calendar.getTime();
        return currYearFirst;
    }
    /**
     * 获取上月第一天时间
     * @return  上月第一天时间
     */
    public static Date getLastMonthFirst(){
        // 上月起始
        Calendar lastMonthFirstDateCal = Calendar.getInstance();
        lastMonthFirstDateCal.add(Calendar.MONTH,-1);
        lastMonthFirstDateCal.set(Calendar.DAY_OF_MONTH, 1);
        String lastMonthFirstTime = yyyyMMdd_format.format(lastMonthFirstDateCal.getTime()) + " 00:00:00";
        return stringToDateStandard(lastMonthFirstTime);
    }
    /**
     * 获取上月最后一天时间
     * @return  最后一天时间
     */
    public static Date getLastMonthEnd(){
        // 上月末尾
        Calendar lastMonthEndDateCal = Calendar.getInstance();
        lastMonthEndDateCal.add(Calendar.MONTH,-1);
        lastMonthEndDateCal.set(Calendar.DAY_OF_MONTH, lastMonthEndDateCal.getActualMaximum(Calendar.DAY_OF_MONTH));
        String lastMonthEndTime = yyyyMMdd_format.format(lastMonthEndDateCal.getTime()) + " 23:59:59";
        return stringToDateStandard(lastMonthEndTime);
    }
}