springboot使用MongoTemplate根据正则表达式查询日期数据

 一、日期正则表达式测试

• 匹配HH:mm:ss正则表达式写法有很多列举两个

.(点)代表任意匹配

^开头必须是跟着的

: 精确匹配,必须是:

([0-1]?[0-9]|2[0-3]).([0-5][0-9]).([0-5][0-9])

^([0-1]?[0-9]|2[0-3]).([0-5][0-9]).([0-5][0-9])$
([0-1]?[0-9]|2[0-3]):([0-5][0-9]):([0-5][0-9])

public class RegexDemo {
    public static void main(String[] args) {
        String str = "2023-10-10 00:00:00";
        String regex1 ="^\\d{4}-\\d{2}-\\d{2}.([0-1]?[0-9]|2[0-3]).([0-5][0-9]).([0-5][0-9])$";
        Pattern p = Pattern.compile(regex1);
        Matcher m = p.matcher(str);
        boolean flag = m.matches();
        System.out.println("yyyy-MM-dd HH:mm:ss格式正则表达式测试" + flag);
        String regex2 ="^\\d{4}-\\d{2}-\\d{2}.\\d{2}:\\d{2}:\\d{2}$";
        Pattern p2 = Pattern.compile(regex2);
        Matcher m2 = p2.matcher(str);
        boolean flag2 = m2.matches();
        System.out.println("yyyy-MM-dd HH:mm:ss忽略时分秒" + flag2);
        String regex3 ="^2023-10-10 \\d{2}:\\d{2}:\\d{2}$";
        Pattern p3 = Pattern.compile(regex3);
        Matcher m3 = p3.matcher(str);
        boolean flag3 = m3.matches();
        System.out.println("yyyy-MM-dd HH:mm:ss忽略时分秒精确匹配" + flag3);
    }
}

二、Mongo正则查询与条件查询对比 

    @Resource
    private MongoTemplate mongoTemplate;
 
    @Test
    public void compareRegexToEquals() {
        String str ="^"+"2023-10-07"+".\\d{2}:\\d{2}:\\d{2}$";
        Pattern pattern = Pattern.compile(str, Pattern.CASE_INSENSITIVE);
        List
                        .with(Sort.by(
                                Sort.Order.asc("updateTime")
                        )),
                Map.class, "tbopen_shop_uuid");
        System.out.println("正则表达式查询数据=========================" + maps.size()  );
        maps = maps.stream().limit(5).collect(Collectors.toList());
        maps.forEach(System.out::println);
        String startTime = "2023-10-07 00:00:00";
        String endTime = "2023-10-07 23:59:59";
        List
                        .with(Sort.by(
                                Sort.Order.asc("updateTime")
                        )),
                Map.class, "tbopen_shop_uuid");
        System.out.println("使用条件查询数据=========================" + shop.size());
        shop = maps.stream().limit(5).collect(Collectors.toList());
        shop.forEach(System.out::println);
    }

我这里这查询了一天的测试数据,比对结果后发现两种查询结果是一致的,取了前五条数据做对比,

突然发现正则还是挺牛的!

之后我们取每天的值进行字符串拼接则可以实现分组统计的需求了.