spring-kafka的官方文档介绍,可以知道自1.1版本之后,

@KafkaListener开始支持批量消费,只需要设置batchListener参数为true

把application.yml中的enable-auto-commit设置为false,设置为不自动提交

 

@Bean
public KafkaListenerContainerFactory<?> batchFactory(ConsumerFactory consumerFactory){
ConcurrentKafkaListenerContainerFactory<Integer,String> factory =
new ConcurrentKafkaListenerContainerFactory<>();
factory.setConsumerFactory(consumerFactory);
factory.setConcurrency(10);
factory.getContainerProperties().setPollTimeout(1500);
factory.setBatchListener(true);//设置为批量消费,每个批次数量在Kafka配置参数中设置
    factory.getContainerProperties().setAckMode(ContainerProperties.AckMode.MANUAL_IMMEDIATE);//设置手动提交ackMode
  return factory; 
}
   //批量消息
@KafkaListener(topics = {"first_top"},containerFactory="batchFactory")
public void consumerBatch(List<ConsumerRecord<?, ?>> records, Acknowledgment ack){
log.info("接收到消息数量:{}",record.size());
       //手动提交
   ack.acknowledge();
}

这里containerFactory = “batchFactory”要指定为批量消费

 
04-17 06:52