java使用stream对日期排序

public static void main(String[] args){
	List<实体> voList = new ArraysList<>();
	voList.stream().sorted(Comparator.comparing(s -> DateUtils.convertStringToDate(s.getDate(), "yyyy-MM-dd").getTime())).collect(Collectors.toList());
}
 
    public static Date convertStringToDate(String dateStr, String format) {
        Date date = null;
        try {
            SimpleDateFormat sdf = new SimpleDateFormat(format);
            if (!StringUtils.isBlank(dateStr)) {
                date = sdf.parse(dateStr);
            }
        } catch (ParseException e) {
            e.printStackTrace();
        }
        return date;
    }