编辑FYI:working gitHub example
我在互联网上搜索,找不到嵌入式Kafka测试的工作简单示例。
我的设置是:
请帮帮我。主要是过度配置或过度设计的示例。我相信它可以做得很简单。 谢谢,伙计们!
#elif
private static String SENDER_TOPIC =“test.kafka.topic”;
@Controller
public class KafkaController {
private static final Logger LOG = getLogger(KafkaController.class);
@KafkaListener(topics = "test.kafka.topic")
public void receiveDunningHead(final String payload) {
LOG.debug("Receiving event with payload [{}]", payload);
//I will do database stuff here which i could check in db for testing
}
}
答案 0 :(得分:21)
嵌入式Kafka测试适用于以下配置,
测试类的注释
@EnableKafka
@SpringBootTest(classes = {KafkaController.class}) // Specify @KafkaListener class if its not the same class,or not loaded with test config
@EmbeddedKafka(partitions = 1, controlledShutdown = false,
brokerProperties = {"listeners=PLAINTEXT://localhost:3333", "port=3333"})
public class KafkaConsumerTest{
@Autowired
KafkaEmbedded kafkaEmbeded;
@Autowired
KafkaListenerEndpointRegistry kafkaListenerEndpointRegistry;
在设置方法的注释之前
@Before
public void setUp() throws Exception {
for (MessageListenerContainer messageListenerContainer : kafkaListenerEndpointRegistry.getListenerContainers()) {
ContainerTestUtils.waitForAssignment(messageListenerContainer,
kafkaEmbeded.getPartitionsPerTopic());
}
}
注意:我没有使用@ClassRule
来创建嵌入式Kafka,而是使用自动布线@Autowired embeddedKafka
@Test
public void testReceive() throws Exception {
kafkaTemplate.send(topic, data);
}
希望这有帮助!
编辑:测试标有@TestConfiguration
@TestConfiguration
public class TestConfig {
@Bean
public ProducerFactory<String, String> producerFactory() {
return new DefaultKafkaProducerFactory<>(KafkaTestUtils.producerProps(kafkaEmbedded));
}
@Bean
public KafkaTemplate<String, String> kafkaTemplate() {
KafkaTemplate<String, String> kafkaTemplate = new KafkaTemplate<>(producerFactory());
kafkaTemplate.setDefaultTopic(topic);
return kafkaTemplate;
}
现在@Test
方法将自动装配KafkaTemplate并使用is发送消息
kafkaTemplate.send(topic, data);
使用上一行更新了答案代码块
答案 1 :(得分:5)
我现在解决了这个问题
@BeforeClass
public static void setUpBeforeClass() {
System.setProperty("spring.kafka.bootstrap-servers", embeddedKafka.getBrokersAsString());
System.setProperty("spring.cloud.stream.kafka.binder.zkNodes", embeddedKafka.getZookeeperConnectionString());
}
在我调试时,我看到嵌入式卡卡服务器正在使用随机端口。
我无法找到它的配置,因此我将kafka配置设置为与服务器相同。看起来对我来说仍然有点难看。
我很想拥有@Mayur提到的行
@EmbeddedKafka(partitions = 1, controlledShutdown = false, brokerProperties = {"listeners=PLAINTEXT://localhost:9092", "port=9092"})
但无法在互联网上找到正确的依赖关系。
答案 2 :(得分:0)
因为接受的答案无法为我编译或使用。我根据https://blog.mimacom.com/testing-apache-kafka-with-spring-boot/想与您分享什么,找到了另一个解决方案。
依赖项是“ spring-kafka-test”版本:“ 2.2.7.RELEASE”
@RunWith(SpringRunner.class)
@EmbeddedKafka(partitions = 1, topics = { "testTopic" })
@SpringBootTest
public class SimpleKafkaTest {
private static final String TEST_TOPIC = "testTopic";
@Autowired
EmbeddedKafkaBroker embeddedKafkaBroker;
@Test
public void testReceivingKafkaEvents() {
Consumer<Integer, String> consumer = configureConsumer();
Producer<Integer, String> producer = configureProducer();
producer.send(new ProducerRecord<>(TEST_TOPIC, 123, "my-test-value"));
ConsumerRecord<Integer, String> singleRecord = KafkaTestUtils.getSingleRecord(consumer, TEST_TOPIC);
assertThat(singleRecord).isNotNull();
assertThat(singleRecord.key()).isEqualTo(123);
assertThat(singleRecord.value()).isEqualTo("my-test-value");
consumer.close();
producer.close();
}
private Consumer<Integer, String> configureConsumer() {
Map<String, Object> consumerProps = KafkaTestUtils.consumerProps("testGroup", "true", embeddedKafkaBroker);
consumerProps.put(ConsumerConfig.AUTO_OFFSET_RESET_CONFIG, "earliest");
Consumer<Integer, String> consumer = new DefaultKafkaConsumerFactory<Integer, String>(consumerProps)
.createConsumer();
consumer.subscribe(Collections.singleton(TEST_TOPIC));
return consumer;
}
private Producer<Integer, String> configureProducer() {
Map<String, Object> producerProps = new HashMap<>(KafkaTestUtils.producerProps(embeddedKafkaBroker));
return new DefaultKafkaProducerFactory<Integer, String>(producerProps).createProducer();
}
}