我正在尝试使用@EnableKafka和@KafkaListener注释为Reactive Kafka使用者编写Spring启动应用程序。我已经配置我的kafka经纪人在不同的机器上。当我将bootstrap-server提供给广告的kafka代理主机时,它总是将广告主机IP地址覆盖到localhost。下面是我的代码。
hm圆角: -
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-webflux</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.kafka</groupId>
<artifactId>spring-kafka</artifactId>
</dependency>
<dependency>
<groupId>io.projectreactor.kafka</groupId>
<artifactId>reactor-kafka</artifactId>
<version>1.0.0.RELEASE</version>
</dependency>
配置: -
@Configuration
@EnableKafka
public class AppConfig {
@Bean
Map consumerProps() {
Map<String, Object> props = new HashMap<>();
props.put(ConsumerConfig.BOOTSTRAP_SERVERS_CONFIG, "192.12.12.24:9092,192.14.14.28:9092");
props.put(ConsumerConfig.GROUP_ID_CONFIG, "example-group");
props.put(ConsumerConfig.ENABLE_AUTO_COMMIT_CONFIG, true);
props.put(ConsumerConfig.AUTO_COMMIT_INTERVAL_MS_CONFIG, "100");
props.put(ConsumerConfig.SESSION_TIMEOUT_MS_CONFIG, "15000");
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, "earliest");
return props;
}
@Bean
ReceiverOptions receiverOptions() {
ReceiverOptions receiverOptions = ReceiverOptions.create(consumerProps()).subscription(Arrays.asList("hellochange"));
return receiverOptions;
}
@Bean
public KafkaReceiver kafkaReceiver() {
return KafkaReceiver.create(receiverOptions());
}
}
消费者:-
@Service
public class ChangeListener {
@Autowired
KafkaReceiver kafkaReceiver;
@KafkaListener(topics="hellochange",groupId="example-group")
public void receiver() {
kafkaReceiver.receive().subscribe(System.out::println);
}
}
安慰:-
auto.commit.interval.ms = 5000
auto.offset.reset = latest
bootstrap.servers = [localhost:9092]
check.crcs = true
client.id =
connections.max.idle.ms = 540000
enable.auto.commit = true
2018-06-07 19:59:17.640 WARN 23536 --- [ntainer#0-0-C-1] org.apache.kafka.clients.NetworkClient : [Consumer clientId=consumer-1, groupId=example-group] Connection to node -1 could not be established. Broker may not be available.
我已经验证了没有弹簧配置的simple consumer和非反应性弹簧卡夫卡,两者,它工作正常。只有Reactor kafka与EnableKafka和KafkaListener注释我遇到了这个问题。
我在这里错过了什么/做错了吗?我们可以在Spring启动时使用Reactor Kafka的EnableKafka和KafkaListener注释吗?
附:据我所知,@EnableKafka
和@KafkaListener
不是被动的,如果我从pom.xml中删除spring-kafka
,两个注释都不可用。
就像@EnableKafka
和@KafkaListener
的非反应性kafka一样,是否有任何注释可用于配置具有Spring启动应用程序的被动kafka使用者?
你不能在Reactor Kafka中使用KafkaListener注释; @KafkaListener
不是被动的。