Java 计算两个时间相差的天，时，分钟，秒-蒲公英云

Java 计算两个时间相差的天，时，分钟，秒

public static String getDateTimePoor( Date startDate ,Date endDate ) {
        long nd = 1000 * 24 * 60 * 60;
        long nh = 1000 * 60 * 60;
        long nm = 1000 * 60;
        // long ns = 1000;
        // 获得两个时间的毫秒时间差异
        long diff = endDate.getTime() - startDate.getTime();
        // 计算差多少天
        long day = diff / nd;
        // 计算差多少小时
        long hour = diff % nd / nh;
        // 计算差多少分钟
        long min = diff % nd % nh / nm;
        // 计算差多少秒//输出结果
        // long sec = diff % nd % nh % nm / ns;
        return day + "天" + hour + "小时" + min + "分钟";
    }
    public static String getDatePoor( Date startDate ,Date endDate ) {
        long nd = 1000 * 24 * 60 * 60;
        long nh = 1000 * 60 * 60;
        long nm = 1000 * 60;
        long ns = 1000 ;
        // long ns = 1000;
        // 获得两个时间的毫秒时间差异
        long diff = endDate.getTime() - startDate.getTime();
        // 计算差多少天
        //long day = diff / nd;
        // 计算差多少小时
        long hour = diff  / nh;
        // 计算差多少分钟
        long min = diff  % nh / nm;
        // 计算差多少秒//输出结果
        long sec = diff  % nh % nm / ns;
        return   hour + "时" + min + "分"+ sec + "秒";//17时20分32秒
    }
    public static void main(String[] args) {
        Date date1 = parseYyyyMMddHHmmss("2020-11-13 15:18:15");
        Date date2 = parseYyyyMMddHHmmss("2020-11-14 16:19:16");
        String datePoor = getDatePoor(date1, date2);
        System.out.println();
    }