@Override
    public Mono<byte[]> getData(final String key) {
        return this.redisTemplate.opsForValue().get(key);
    }
Get data with the key.
@param key the cache key
@return the data
shenyu-plugin/shenyu-plugin-cache/shenyu-plugin-cache-redis/src/main/java/org/apache/shenyu/plugin/cache/redis/RedisCache.java