小编use*_*140的帖子

我第一次使用Spring Kafka而且我无法在我的消费者代码中使用Acknowledgement.acknowledge()方法进行手动提交.如果我的消费者配置或监听器代码中缺少任何内容,请告诉我.或者是否有其他方法根据条件处理确认偏移.在这里,我正在寻找解决方案,如果没有手动提交/确认偏移,它应该由消费者选择相同的消息/偏移.

import java.util.HashMap;
import java.util.Map;

import org.apache.kafka.clients.consumer.ConsumerConfig;
import org.apache.kafka.common.serialization.StringDeserializer;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.kafka.annotation.EnableKafka;
import org.springframework.kafka.config.ConcurrentKafkaListenerContainerFactory;
import org.springframework.kafka.core.DefaultKafkaConsumerFactory;
import org.springframework.kafka.listener.AbstractMessageListenerContainer.AckMode;

@EnableKafka
@Configuration
public class ConsumerConfig {

@Value(value = "${kafka.bootstrapAddress}")
private String bootstrapAddress;

@Value(value = "${kafka.groupId}")
private String groupId;

@Bean
public ConcurrentKafkaListenerContainerFactory<String, String> containerFactory() {
Map<String, Object> props = new HashMap<String, Object>();
props.put(ConsumerConfig.BOOTSTRAP_SERVERS_CONFIG, bootstrapAddress);
props.put(ConsumerConfig.GROUP_ID_CONFIG, groupId);
props.put(ConsumerConfig.ENABLE_AUTO_COMMIT_CONFIG, false);
props.put(ConsumerConfig.AUTO_COMMIT_INTERVAL_MS_CONFIG, 100);
props.put(ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG,
        StringDeserializer.class);
props.put(ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG,
        StringDeserializer.class);
props.put(ConsumerConfig.AUTO_OFFSET_RESET_CONFIG, "latest");
ConcurrentKafkaListenerContainerFactory<String, String> factory = new ConcurrentKafkaListenerContainerFactory<String, String>();
factory.setConsumerFactory(new DefaultKafkaConsumerFactory<String, String>(
        props)); …