使用@CacheEvict(value = “xxx”, allEntries = true)

导致redis报错:

nested exception is redis.clients.jedis.exceptions.JedisDataException: ERR unknow command ‘KEYS’;

优化方式：

注释此注解
然后在注解@CacheEvict的方法中加入批量清除缓存如下,用scan代替keys命令

    @Autowired
    private  RedisTemplate redisTemplate;


    public void deleteKeys(String xxx) {
       //此处的xxx就是@CacheEvict(value = "xxx")这个,进行模糊匹配
        String matchKey = xxx + "*";
        Set<String> delKeys = new HashSet<>();
        try {
            redisTemplate.execute((RedisCallback<Set<String>>) backs -> {
                Cursor<byte[]> cursor = backs.scan(new ScanOptions.ScanOptionsBuilder().match(matchKey ).count(Integer.MAX_VALUE).build());
                while (cursor.hasNext()) {
                    delKeys.add(new String(cursor.next()));
                }
                if (ArrayUtil.isNotEmptyCollection(delKeys)) {
                    redisTemplate.delete(delKeys);
                }
                return delKeys;
            });
        } catch (Throwable e) {
            e.printStackTrace();
        }
    }

多说一句：
@CacheEvict(value = “xxx”, key = “‘abc’+#user.id”)
@CacheEvict此注解如果指定了key，不会引发KEYS命令，不用多加处理