Java正则表达式校验日期格式

偏执的太偏执、 2022-12-28 12:54 387阅读 0赞

public static void main(String[] args) {
                //MM/dd/yyyy HH:mm:ss
                String regular1="\\d{1,2}/\\d{1,2}/\\d{4}(\\s\\d{1,2}:\\d{1,2}:\\d{1,2})?";
                //yyyy/MM/dd HH:mm:ss
                String regular2="\\d{4}/\\d{1,2}/\\d{1,2}(\\s\\d{1,2}:\\d{1,2}:\\d{1,2})?";
                //yyyy-MM-dd HH:mm:ss
                String regular3="^(\\d{4})-([0-1]\\d)-([0-3]\\d)\\s([0-5]\\d):([0-5]\\d):([0-5]\\d)$";
                //yyyy-MM-dd HH:mm:ss.S
                String regular4="^(\\d{4})-([0-1]\\d)-([0-3]\\d)\\s([0-5]\\d):([0-5]\\d):([0-5]\\d).(\\d{1})$";
                //yyyyMMddHHmmss
                String regular5="^((([0-9]{3}[1-9]|[0-9]{2}[1-9][0-9]{1}|[0-9]{1}[1-9][0-9]{2}|[1-9][0-9]{3})(((0[13578]|1[02])(0[1-9]|[12][0-9]|3[01]))|((0[469]|11)(0[1-9]|[12][0-9]|30))|(02(0[1-9]|[1][0-9]|2[0-8]))))|((([0-9]{2})(0[48]|[2468][048]|[13579][26])|((0[48]|[2468][048]|[3579][26])00))0229))([0-1]?[0-9]|2[0-3])([0-5][0-9])([0-5][0-9])$";
                System.out.println(Pattern.matches(regular1,"12/16/2020 15:56:23"));
                System.out.println(Pattern.matches(regular2, "2020/12/16 15:56:23"));
                System.out.println(Pattern.matches(regular3, "2020-12-16 15:56:23"));
                System.out.println(Pattern.matches(regular4, "2020-12-16 15:56:23.0"));
                System.out.println(Pattern.matches(regular5, "20201216155623"));
        }

参考文章:

正则表达式和日期操作:[https://www.cnblogs.com/yangliguo/p/7498062.html][https_www.cnblogs.com_yangliguo_p_7498062.html]

正则表达式校验时间:[https://www.cnblogs.com/yyy-blog/p/10593983.html][https_www.cnblogs.com_yyy-blog_p_10593983.html]

[https_www.cnblogs.com_yangliguo_p_7498062.html]: https://www.cnblogs.com/yangliguo/p/7498062.html
[https_www.cnblogs.com_yyy-blog_p_10593983.html]: https://www.cnblogs.com/yyy-blog/p/10593983.html