优化代码

wuxw

2024-02-27 2291fba3ed16336860050a4a18c6860cb2396b1b

 service-user/src/test/java/com/java110/user/AppTest.java

@@ -56,12 +56,77 @@
     */
    public void testApp()
    {
        Date startTime = DateUtil.getDateFromStringB("2022-07-01");
        Date endTime = DateUtil.getDateFromStringB("2022-07-27");
        Date startTime = DateUtil.getDateFromStringA("2023-12-02 22:00:00");
        Date endTime = DateUtil.getDateFromStringB("2024-03-01");
        double month = dayCompare(startTime,endTime);
        System.out.println(month);
        System.out.println(month * 129.13 * 2.4);
    }

    public static double dayCompare(Date fromDate, Date toDate) {


        //todo 需要计算三端时间 相加即可
        Date fromDateFirstDate = fromDate; // 第一个1日

        Date toDateFirstDate = toDate; // 最后一个1日

        boolean firstDay = true;

        //todo 1.0 计算 fromDateFirstDate
        Calendar fromDateCal = Calendar.getInstance();
        fromDateCal.setTime(fromDate);
        fromDateCal.set(Calendar.DAY_OF_MONTH, 1);
        fromDateCal.set(Calendar.HOUR_OF_DAY,0);
        fromDateCal.set(Calendar.MINUTE,0);
        if (fromDate.getTime() > fromDateCal.getTime().getTime()) {
            fromDateCal.add(Calendar.MONTH, 1);
            firstDay = false;
            fromDateFirstDate = fromDateCal.getTime();
        }

        //todo 2.0 计算 toDateFirstDate
        Calendar toDateCal = Calendar.getInstance();
        toDateCal.setTime(toDate);
        toDateCal.set(Calendar.DAY_OF_MONTH, 1);
        toDateCal.set(Calendar.HOUR_OF_DAY,0);
        toDateCal.set(Calendar.MINUTE,0);

        if (toDate.getTime() > toDateCal.getTime().getTime()) {
            toDateFirstDate = toDateCal.getTime();
        }

        // todo 3.0 计算整数月  fromDateFirstDate --->  toDateFirstDate
        Calendar from = Calendar.getInstance();
        from.setTime(fromDateFirstDate);
        Calendar to = Calendar.getInstance();
        to.setTime(toDateFirstDate);
        //比较月份差 可能有整数 也会负数
        int result = to.get(Calendar.MONTH) - from.get(Calendar.MONTH);
        //比较年差
        int month = (to.get(Calendar.YEAR) - from.get(Calendar.YEAR)) * 12;
        //真实 相差月份
        result = result + month;

        //todo 3.1  如果 fromDate 和toDate 是同一天 则直接返回整月，不再计算 4.0 和5.0
        if (DateUtil.sameMonthDay(fromDate, toDate)) {
            return firstDay ? result : result + 1;
        }

        // todo 4.0 计算 fromDate ---> fromDateFirstDate 的月份
        double days = (fromDateFirstDate.getTime() - fromDate.getTime()) * 1.00 / (24 * 60 * 60 * 1000);
        BigDecimal tmpDays = new BigDecimal(days); //相差天数
        BigDecimal monthDay = new BigDecimal(DateUtil.getMonthDay(fromDate));
        BigDecimal resMonth = tmpDays.divide(monthDay, 4, BigDecimal.ROUND_HALF_UP).add(new BigDecimal(result));

        // todo 5.0 计算  toDateFirstDate ----> toDate 月份
        days = (toDate.getTime() - toDateFirstDate.getTime()) * 1.00 / (24 * 60 * 60 * 1000);
        tmpDays = new BigDecimal(days); //相差天数
        monthDay = new BigDecimal(DateUtil.getMonthDay(toDate));
        resMonth = tmpDays.divide(monthDay, 4, BigDecimal.ROUND_HALF_UP).add(resMonth);

        return resMonth.doubleValue();

    }
    /**
     * 计算 两个时间点月份
     *
@@ -69,7 +134,7 @@
     * @param toDate   结束时间
     * @return
     */
    public double dayCompare(Date fromDate, Date toDate) {
    public double dayCompare1(Date fromDate, Date toDate) {
        double resMonth = 0.0;
        Calendar from = Calendar.getInstance();
        from.setTime(fromDate);