用于读取Kafka在 <byte[], byte[]> 窗体，您可以使用 KafkaUtils . 像这样-

Map<String, Object> kafkaParams = new HashMap<>();
kafkaParams.put("bootstrap.servers", "localhost:9092,anotherhost:9092");
kafkaParams.put("key.deserializer", ByteArrayDeserializer.class);
kafkaParams.put("value.deserializer", ByteArrayDeserializer.class);
kafkaParams.put("group.id", "use_a_separate_group_id_for_each_stream");
kafkaParams.put("auto.offset.reset", "latest");
kafkaParams.put("enable.auto.commit", false);

Collection<String> topics = Arrays.asList("topicA", "topicB");

JavaInputDStream<ConsumerRecord<byte[], byte[]>> pairrdd =
  KafkaUtils.createDirectStream(
    jssc,
    LocationStrategies.PreferConsistent(),
    ConsumerStrategies.<byte[], byte[]>Subscribe(topics, kafkaParams)
  );

我希望这有帮助！