小编sid*_*ddu的帖子

我正在使用KafkaConsumer来消费来自Kafka服务器(主题)的消息.

• 它适用于在启动消费者代码之前创建的主题...

但问题是,如果动态创建主题(我的意思是说消费者代码启动后),它将无法工作,但API表示它将支持动态主题创建..这是您的参考链接..

使用的Kafka版本:0.9.0.1

https://kafka.apache.org/090/javadoc/index.html?org/apache/kafka/clients/consumer/KafkaConsumer.html

这是JAVA代码......

    Properties props = new Properties();
    props.put("bootstrap.servers", "localhost:9092");
    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);
    Pattern r = Pattern.compile("siddu(\\d)*");

    consumer.subscribe(r, new HandleRebalance());
    try {
         while(true) {
             ConsumerRecords<String, String> records = consumer.poll(Long.MAX_VALUE);
             for (TopicPartition partition : records.partitions()) {
                 List<ConsumerRecord<String, String>> partitionRecords = records.records(partition);
                 for (ConsumerRecord<String, String> record : partitionRecords) {
                     System.out.println(partition.partition()  + ": "  +record.offset() + ": " + record.value());
                 }
                 long lastOffset = partitionRecords.get(partitionRecords.size() - 1).offset(); …