用Calendar代替SimpleDateFormat

  public static void main(String[] args) {
 
        Calendar cal = Calendar.getInstance();
        cal.setTime(new Date());
        FastDateFormat formatter = FastDateFormat.getInstance(DateUtils.FORMAT_DATE);
        String d = formatter.format(cal.getTime());
        System.out.println(d);
 
 
 
 
        SimpleDateFormat formater = new SimpleDateFormat("yyyy-MM-dd");
        String format = formater.format(new Date());
        System.out.println(format);
    }