Spring integration 使用带有spring集成和spring kafka的嵌入式Kafkabroker
我想使用Spring integration 使用带有spring集成和spring kafka的嵌入式Kafkabroker,spring-integration,spring-kafka,Spring Integration,Spring Kafka,我想使用EmbeddedKafkaBroker来测试涉及KafkaMessageDrivenChannelAdapter, 看起来消费者启动正确,订阅了主题,但将消息推送到EmbeddedKafkaBroker后,处理程序不会触发 @SpringBootTest(properties = {"...."}, classes = {....class}) @EmbeddedKafka class IntTests { @BeforeAll static void setu
EmbeddedKafkaBroker
来测试涉及KafkaMessageDrivenChannelAdapter
,看起来消费者启动正确,订阅了主题,但将消息推送到
EmbeddedKafkaBroker
后,处理程序不会触发
@SpringBootTest(properties = {"...."}, classes = {....class})
@EmbeddedKafka
class IntTests {
@BeforeAll
static void setup() {
embeddedKafka = new EmbeddedKafkaBroker(1, true, TOPIC);
embeddedKafka.kafkaPorts(57412);
embeddedKafka.afterPropertiesSet();
}
@Test
void testit() throws InterruptedException {
String ip = embeddedKafka.getBrokersAsString();
Map<String, Object> configs = new HashMap<>(KafkaTestUtils.producerProps(embeddedKafka));
Producer<String, String> producer = new DefaultKafkaProducerFactory<>(configs, new StringSerializer(), new StringSerializer()).createProducer();
// Act
producer.send(new ProducerRecord<>(TOPIC, "key", "{\"name\":\"Test\"}"));
producer.flush();
....
}
...
}
拥有
embeddedKafka=新的EmbeddedKafkaBroker(1,true,TOPIC)
和@EmbeddedKafka
,基本上可以启动两个独立的Kafka集群。如果要更改嵌入式代理的随机端口,请参阅@EmbeddedKafka
的端口
选项。但同时,更好地依赖于Spring Boot为我们提供的自动配置
有关更多信息,请参阅文档:。请注意bootstrapServersProperty=“spring.kafka.bootstrap服务器”属性
更新
在您的测试中,您有这个
@SpringBootTest(classes={Kafka.class})
。当我删除classes
属性时,一切都开始工作了。问题在于,您的配置类不支持自动配置,因此您没有正确初始化Spring集成,并且消息没有从通道中使用。可能还有其他影响。但仍然:最好依靠自动配置,所以让您的测试看看@SpringBootApplication
注释。删除了`新的EmbeddedKafkaBroker,当我推送消息时仍然没有触发处理程序。可能是因为我使用了
Thread.Sleep`推后?不确定发生了什么。有没有机会和我们分享一个简单的项目,让我们复制和玩?非常简单的例子,2个Java,请看我答案中的更新。哇,这太简单了
@Configuration
public class Kafka {
@Bean
public KafkaMessageDrivenChannelAdapter<String, String> adapter(KafkaMessageListenerContainer<String, String> container) {
KafkaMessageDrivenChannelAdapter<String, String> kafkaMessageDrivenChannelAdapter =..
kafkaMessageDrivenChannelAdapter.setOutputChannelName("kafkaChannel");
}
@Bean
public KafkaMessageListenerContainer<String, String> container() {
ContainerProperties properties = new ContainerProperties(TOPIC);
KafkaMessageListenerContainer<String, String> kafkaContainer = ...;
return kafkaContainer;
}
@Bean
public ConsumerFactory<String, String> consumerFactory() {
Map<String, Object> props = new HashMap<>();
props.put(ConsumerConfig.BOOTSTRAP_SERVERS_CONFIG, "127.0.0.1:57412");
props.put(ConsumerConfig.GROUP_ID_CONFIG, "group12");
...
return new DefaultKafkaConsumerFactory<>(props);
}
@Bean
public PublishSubscribeChannel kafkaChannel() {
return new PublishSubscribeChannel ();
}
@Bean
@ServiceActivator(inputChannel = "kafkaChannel")
public MessageHandler handler() {
return new MessageHandler() {
@Override
public void handleMessage(Message<?> message) throws MessagingException {
}
};
}
...
}
clients.consumer.KafkaConsumer : [Consumer clientId=consumer-group12-1, groupId=group12] Subscribed to topic(s): TOPIC
ThreadPoolTaskScheduler : Initializing ExecutorService
KafkaMessageDrivenChannelAdapter : started bean 'adapter'; defined in: 'com.example.demo.demo.Kafka';