java8新特性字符串转LocalDateTime转Date

之前有个项目的时间格式是2020/2/7
就是如果日期或者月份不到10则不显示前面的0。记录一下

public static void main(String[] args) {
        final String yyyyMMddStr = "yyyy/M/d";
        final String yyyyMMddStr2 = "yyyy/MM/dd";
        String time = "2021/09/09";
        LocalDate localDate = LocalDate.parse(time, DateTimeFormatter.ofPattern(yyyyMMddStr));
        System.out.println(localDate.format(DateTimeFormatter.ofPattern(yyyyMMddStr)));
        System.out.println(localDate.format(DateTimeFormatter.ofPattern(yyyyMMddStr2)));
    }