Method multiGet

src/main/java/com/rocketpt/server/util/RedisUtil.java:256–258

批量获取 @param keys @return

(Collection<String> keys)

     * @return
     */
    public List<String> multiGet(Collection<String> keys) {
        return redisTemplate.opsForValue().multiGet(keys);
    }

    /**
     * 设置ASCII码, 字符串'a'的ASCII码是97, 转为二进制是'01100001', 此方法是将二进制第offset位值变为value