redission删除key

RBucket<Object> bucket = REDISSON_CLIENT.getBucket("queryRed" + userId);
        if (bucket.isExists()) {
            bucket.delete();
            resultMap.put("code", 1);
            resultMap.put("message", "清除红点");
        } else {
            resultMap.put("code", 0);
            resultMap.put("message", "没红点");
        }