java中的kafka使用者没有响应

Question

我正在尝试在Java中为特定主题运行此KAFKA使用者代码，但它没有从该主题接收任何消息。服务器在不同的Windows机器上运行。请帮帮我。

{Properties props = new Properties();
     props.put("bootstrap.servers", "10.100.144.157:2181");
     props.put("group.id", "test");
     props.put("enable.auto.commit", "false");
     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");
     KafkaConsumer<String, String> consumer = new KafkaConsumer<>(props);
     consumer.subscribe(Arrays.asList("test"));
     final int minBatchSize = 200;
     List<ConsumerRecord<String, String>> buffer = new ArrayList<>();
     while (true) {
         ConsumerRecords<String, String> records = consumer.poll(100);
         for (ConsumerRecord<String, String> record : records) {
             buffer.add(record);
         }
         if (buffer.size() >= minBatchSize) {
             insertIntoDb(buffer);
             consumer.commitSync();
             buffer.clear();
         }
     }}