我正在测试使用kafka的spark结构化流媒体。我有一个kafka代理（0.10.1） host28 ，默认分区数： num.partitions=1 我的制作人：

bin/kafka-console-producer.sh --broker-list host28:6667 --topic test

当我使用

bin/kafka-console-consumer.sh --zookeeper host26:2181,host27:2181,host28:2181 --topic test --from-beginning

或

bin/kafka-console-consumer.sh --bootstrap-server host8:6667 --topic test --from-beginning --partition 0

能收到Kafka的信息。
但使用时

bin/kafka-console-consumer.sh --bootstrap-server host28:6667 --topic test --from-beginning

或者spark structured streaming无法接收消息

public class Main {
    private static String APP_NAE = "test_streaming_from_kafka";
    private static String KAFKA_HOST = "host28:6667";
    private static String KAFKA_SUBSCRIBE = "test";
    public static void main(String[] args) throws Exception {

        SparkSession spark = SparkSession
                .builder()
                .appName(APP_NAE)
                .getOrCreate();

        DataStreamReader reader = spark
                .readStream()
                .format("kafka")
                .option("kafka.bootstrap.servers", KAFKA_HOST)
                .option("subscribe", KAFKA_SUBSCRIBE);

        StreamingQuery query = reader.load()
                .selectExpr("CAST(key AS STRING)", "CAST(value AS STRING)", "topic", "CAST(partition AS STRING)", "CAST(offset AS STRING)")
                .writeStream()
                .format("console")
                .start();

        query.awaitTermination();
    }
}