我正在尝试使用@EnableKafka和@KafkaListener注释为反应式Kafka消费者编写Spring引导应用程序。我已经配置了我的kafka代理在不同的机器上。当我将bootstrap-server提供给播发的kafka代理主机时,它总是覆盖播发给localhost的主机ip地址。下面是我的代码。
pom.xml文件:-
<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);
}
}
控制台:-
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.
我已经在simple consumer和non-reactive spring kafka中验证了没有弹簧配置,对于这两种情况,它都工作得很好。只有带有EnableKafka和KafkaListener注释的Reactor kafka我才会遇到这个问题。
我是不是漏掉了什么/做错了什么?我们可以在Spring boot中将EnableKafka和KafkaListener注解与Reactor Kafka一起使用吗?
附言:我理解,@EnableKafka
和@KafkaListener
不是反应性的,如果我从pom.xml中删除spring-kafka
,两个注解都不可用。
像用于非反应式kafka的@EnableKafka
和@KafkaListener
一样,是否有任何注释可用于使用Spring boot应用程序配置反应式kafka消费者?
https://stackoverflow.com/questions/50748770
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