启用kerberos后，producer,consumer 的java API

现在想调用新producer和consumer的java API,但是一直都不成功，这是我参考网上的生产者

public static KafkaProducer<String, String> getProducer() throws IOException {
        if (kp == null) {
            Properties props = new Properties();
            props.put("sasl.kerberos.service.name", "kafka");
            props.put("sasl.mechanism", "GSSAPI");
            props.put("security.protocol", "SASL_PLAINTEXT");
            props.put("bootstrap.servers", "172.16.18.201:9092");
            props.put("acks", "1");
            props.put("retries", 0);
            props.put("batch.size", 16384);
            props.put("key.serializer", "org.apache.kafka.common.serialization.StringSerializer");
            props.put("value.serializer", "org.apache.kafka.common.serialization.StringSerializer");
            kp = new KafkaProducer<String, String>(props);
        }
        return kp;
    }

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消费者

public static KafkaConsumer<String, String> getConsumer() {
        if(kc == null) {
            Properties props = new Properties();
            props.put("bootstrap.servers", "172.16.18.201:9092");
            props.put("sasl.kerberos.service.name", "kafka");
            props.put("sasl.mechanism", "GSSAPI");
            props.put("security.protocol", "SASL_PLAINTEXT");
            props.put("group.id", "1");
            props.put("enable.auto.commit", "true");
            props.put("auto.commit.interval.ms", "1000");
            props.put("session.timeout.ms", "30000");
            props.put("key.deserializer", "org.apache.kafka.common.serialization.StringDeserializer");
            props.put("value.deserializer", "org.apache.kafka.common.serialization.StringDeserializer");
            kc = new KafkaConsumer<String, String>(props);
        }
        return kc;
    }

---

以上生产者消费者在不启用kerberos和kafka acl时可以用，但在启动认证和权限之后就不能使用，我怀疑这个配置文件还是不太对，请前辈不吝赐教。