public boolean setnx(String key, Serializable value) {
    	redisTemplate.setEnableTransactionSupport(false);
        RedisConnectionFactory factory = redisTemplate.getConnectionFactory();
        RedisConnection redisConnection = null;
        try {
            redisConnection = RedisConnectionUtils.getConnection(factory);
            return redisConnection.setNX(keySerializer.serialize(key), valueSerializer.serialize(value));
        } finally {
            RedisConnectionUtils.releaseConnection(redisConnection, factory);
        }
    }

    public boolean lock(String key) {
    	redisTemplate.setEnableTransactionSupport(false);
        RedisConnectionFactory factory = redisTemplate.getConnectionFactory();
        RedisConnection redisConnection = null;
        try {
            redisConnection = RedisConnectionUtils.getConnection(factory);
            return redisConnection.setNX(keySerializer.serialize(key), valueSerializer.serialize("0"));
        } finally {
            RedisConnectionUtils.releaseConnection(redisConnection, factory);
        }
    }