Redis分布式数据库主键生成

/**
 * 主键工具类
 *
 * @author 1
 * @date 2022/03/24 19:13:05
 */
@Component
public class PrimaryIdUtils {

    @Autowired
    private RedisTemplate<String, String> redisTemplate;

    /**
     * 生成id以今天
     *
     * @param key    关键
     * @param prefix 前缀
     * @return {@link String}
     */
    public String generateIdByToday(String key, String prefix) {
        key = "example:sync_primary_id:" + key;
        RedisAtomicLong counter = new RedisAtomicLong(key, Objects.requireNonNull(redisTemplate.getConnectionFactory()));
        long num = counter.incrementAndGet();
        counter.expireAt(getTodayEndTime());
        //前缀+7位顺序编号+5位随机数，每日编号上限9999999
        return prefix + getToday() + String.format("%07d", num) + RandomUtil.randomInt(10000, 99999);
    }


    /**
     * 得到今天结束时间
     *
     * @return {@link Date}
     */
    public static Date getTodayEndTime() {
        return DateUtil.endOfDay(new Date());
    }

    /**
     * 得到今天
     *
     * @return {@link String}
     */
    public static String getToday() {
        return LocalDate.now().format(DateTimeFormatter.ofPattern("yyyyMMdd"));
    }
    
}