我使用下面的代码来读取主题的数据，即“sha-test2”，但它读取的是完全不同的代码行，即20行中的10行。但当我运行console时，它会显示所有20行。即。bin/kafka-console-consumer.sh--缩放器localhost:2181 --topic sha-test2——从头开始
我怎么了？非常感谢你的帮助。

public class KafkaTestConsumer extends  Thread {
    //final static String clientId = "SimpleConsumerDemoClient";
    final static String TOPIC = "sha-test2";
    ConsumerConnector consumerConnector;

    public static void main(String[] argv) throws   
     UnsupportedEncodingException {
        KafkaTestConsumer helloKafkaConsumer = new KafkaTestConsumer();
        helloKafkaConsumer.start();
    }
    public KafkaTestConsumer(){
        Properties properties = new Properties();
        properties.put("zookeeper.connect","172.23.32.35:2181");
        properties.put("group.id","test-group");
        ConsumerConfig consumerConfig = new ConsumerConfig(properties);
        consumerConnector = 
         Consumer.createJavaConsumerConnector(consumerConfig);
    }

    @Override
    public void run() {
        Map<String, Integer> topicCountMap = new HashMap<String, Integer>();
        topicCountMap.put(TOPIC, new Integer(1));
        Map<String, List<KafkaStream<byte[], byte[]>>> consumerMap =  
         consumerConnector.createMessageStreams(topicCountMap);
        KafkaStream<byte[], byte[]> stream =  consumerMap.get(TOPIC).get(0);
        System.out.println("consumerMap : \n " + consumerMap.toString() );
        ConsumerIterator<byte[], byte[]> it = stream.iterator();

       System.out.println("run started");
        while(it.hasNext()){
            System.out.println(new String(it.next().message()));
        }
}

Thank you.
~Shyam