注意也可以直接在application.properties中添加spring.kafka.listener.concurrency=3,然后使用@KafkaListener并发消费。 ###第二步,批量消费### 然后是批量消费。重点是factory.setBatchListener(true); 以及 propsMap.put(ConsumerConfig.MAX_POLL_RECORDS_CONFIG, 50); 一个设启用批量消费,一个设置批量消费每次最多消...
spring: kafka: # bootstrap-servers: 192.168.0.44:9093,192.168.0.44:9094,192.168.0.44:9095 #bootstrap-servers: 192.168.0.44:19092 bootstrap-servers: 10.80.1.215:9092 listener: # 未发现topic时不报错: 自动创建topic需要设置未false missing-topics-fatal: false producer: # 设置大于0的值,则客户端会将...
spring.kafka.consumer.properties.session.timeout.ms=120000 # 消费请求超时时间 spring.kafka.consumer.properties.request.timeout.ms=180000 # Kafka提供的序列化和反序列化类 spring.kafka.consumer.key-deserializer=org.apache.kafka.common.serialization.StringDeserializer spring.kafka.consumer.value-deserializer=o...
在Springboot项目中,一般通过方法上的@KafkaListener注解来注册Consumer,在Springboot服务启动过程中,通过实现了Springboot的扩展点的KafkaListenerAnnotationBeanPostProcessor类,在postProcessAfterInitialization方法中识别含有@KafkaListener注解的方法,并注册至KafkaListenerEndpointRegistry中(详细的源码在此不展开描述,有兴...
@KafkaListener(id = topicCroup, topics = topic) @SendTo public String listen(String msg) { log.info("listen receive msg >>> {}", msg); // listen receive msg >>> 1 return "listen: I do it >>> " + msg; } } 启动应用,测试一下,观察控制台的变化~ ...
ConcurrentKafkaListenerContainerFactory并且设置了factory.setConcurrency(4); (我的topic有4个分区,为了加快消费将并发设置为4,也就是有4个KafkaMessageListenerContainer) 操作Topic 配置 @Component public class PrividerKafkaConfig { @Value("${spring.kafka.bootstrap-servers}") ...
使用了@KafkaListener注解。 2.1. pom.xml 引入以下依赖 <dependency><groupId>org.springframework.kafka</groupId><artifactId>spring-kafka</artifactId><version>1.2.0.RELEASE</version></dependency> 2.2. 配置类 @Configuration@EnableKafkapublicclassKafkaConfig{@Value("${kafka.bootstrap.servers}")private...
官方文档在https://docs.spring.io/spring-kafka/reference/html/_reference.html 第一步,并发消费 先看代码,重点是这我们使用的是ConcurrentKafkaListenerContainerFactory并且设置了factory.setConcurrency(4); (我的topic有4个分区,为了加快消费将并发设置为4,也就是有4个KafkaMessageListenerContainer) ...
kafka.core.DefaultKafkaConsumerFactory;importorg.springframework.kafka.listener.AbstractMessageListenerContainer;importorg.springframework.kafka.listener.ConcurrentMessageListenerContainer;importjava.util.HashMap;importjava.util.Map;@Configuration@EnableKafkapublicclassKafkaConsumerConfig{@Value("${kafka.bootstrap-...
spring:kafka:bootstrap-servers:127.0.0.1:9092consumer:enable-auto-commit:truegroup-id:consumer1 value-deserializer:org.springframework.kafka.support.serializer.JsonDeserializer max-poll-records:1properties:spring:json:trusted:packages:'*' 进行监听,使用kafka的KafkaListener ...