java获取过去12个月日期

/**
     *
     * @return 返回最近12个月的日期
     */
    public static List<String> getLast12Months(){
        ArrayList<String > latest12Months = new ArrayList<>(12);
        LocalDate today = LocalDate.now();
        for(long i = 11L;i >=0L; i--){
            LocalDate localDate = today.minusMonths(i);
            String ss = localDate.toString().substring(0,7);
            latest12Months.add(ss);
        }
        return latest12Months;
    }