bugfixed

CeDo

2021-06-15 3b855b9c20751a5fee840e686988e8e094773a54

 springcloud_k8s_panzhihuazhihuishequ/common/src/main/java/com/panzhihua/common/utlis/DateUtils.java

@@ -594,6 +594,96 @@
        }
    }

    /**
     * 日期相加减
     * @param time
     *             时间字符串 yyyy-MM-dd HH:mm:ss
     * @param num
     *             加的数，-num就是减去
     * @return
     *             减去相应的数量的年的日期
     * @throws ParseException
     */
    public static Date yearAddNum(Date time, Integer num) {
        //SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        //Date date = format.parse(time);

        Calendar calendar = Calendar.getInstance();
        calendar.setTime(time);
        calendar.add(Calendar.YEAR, num);
        Date newTime = calendar.getTime();
        return newTime;
    }

    /**
     * 将日期对象格式化成yyyy-MM-dd格式的字符串
     *
     * @param date         日期对象
     * @return String
     */
    public static String getDateStringYMD(Date date) {

        String dateString = "";
        if (date != null) {
            dateString = yyyyMMdd_format.format(date);
        }
        return dateString;
    }

    /**
     * 获取当前月第一天
     * @return
     */
    public static Date getFirstDayOfMonth() {
        Calendar cal = Calendar.getInstance();
        cal.add(Calendar.MONTH,0);
        int actualMinimum = cal.getActualMinimum(Calendar.DAY_OF_MONTH);
        cal.set(cal.get(Calendar.YEAR), cal.get(Calendar.MONDAY),actualMinimum,00,00,00);
        return cal.getTime();
    }

    /**
     * 获取当前年月的第一天时间
     * @param year  年份
     * @param month 月份
     * @return  时间
     */
    public static Date getYearMonthStart(Integer year,Integer month) {
        Calendar cal = Calendar.getInstance();
        // 设置年份
        cal.set(Calendar.YEAR, year);
        // 设置月份
        cal.set(Calendar.MONTH, month - 1);
        // 获取某月最小天数
        int firstDay = cal.getMinimum(Calendar.DATE);
        // 设置日历中月份的最小天数
        cal.set(Calendar.DAY_OF_MONTH, firstDay);
        int actualMinimum = cal.getActualMinimum(Calendar.DAY_OF_MONTH);
        cal.set(cal.get(Calendar.YEAR), cal.get(Calendar.MONDAY),actualMinimum,00,00,00);
        return cal.getTime();
    }

    /**
     * 获取当前年月的最后一天时间
     * @param year  年份
     * @param month 月份
     * @return  时间
     */
    public static Date getYearMonthEnd(Integer year,Integer month) {
        Calendar cal = Calendar.getInstance();
        // 设置年份
        cal.set(Calendar.YEAR, year);
        // 设置月份
        cal.set(Calendar.MONTH, month - 1);
        // 获取某月最大天数
        int lastDay = cal.getMaximum(Calendar.DATE);
        // 设置日历中月份的最大天数
        cal.set(Calendar.DAY_OF_MONTH, lastDay);
        int actualMinimum = cal.getActualMinimum(Calendar.DAY_OF_MONTH);
        cal.set(cal.get(Calendar.YEAR), cal.get(Calendar.MONDAY),actualMinimum,00,00,00);
        return cal.getTime();
    }




@@ -602,6 +692,7 @@
//        Date date= new Date();
//        Date after = new Date();
//        System.out.println(calTimeDifference(date,after));
        System.out.println(getYearMonthStart(2021,2));

    }
}