[date] 时间问题: 更新时间距离现在3个月

public static void main(String[] args) {
    Date d1 = null;
    try {
        d1 = DateFormatUtil.StringToDate("2018-02-18 9:22:22");
    } catch (ParseException e) {
        e.printStackTrace();
    }

    Date d = new Date();
    System.out.println(d1);
    System.out.println(d);
    //String date = d.toString();
    System.out.println(d1.getTime());
    System.out.println(d.getTime());
    System.out.println(Math.abs(d.getTime()-d1.getTime()) > 24*60*60*1000*90);
}