Redis operation uses cursor instead of keys

redis Use cursor instead keys

    /** * scan  Realization  * * @param pattern  expression , Such as ：abc*, Find out everything to abc The start key  */
    public Set<String> scan(String pattern) {
    
        return this.redisTemplate.execute((RedisCallback<Set<String>>) connection -> {
    
            Set<String> keysTmp = new HashSet<>();
            try (Cursor<byte[]> cursor = connection.scan(new ScanOptions.ScanOptionsBuilder()
                    .match(pattern)
                    .count(10000).build())) {
    

                while (cursor.hasNext()) {
    
                    keysTmp.add(new String(cursor.next(), "Utf-8"));
                }
            } catch (Exception e) {
    
                log.error(e.getMessage(), e);
                throw new RuntimeException(e);
            }
            return keysTmp;
        });
    }