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February 1, 2022 13:29
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Getting Started with Apache Kafka and Spring Boot
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| package com.example.kafka; | |
| import org.slf4j.Logger; | |
| import org.slf4j.LoggerFactory; | |
| import org.springframework.kafka.annotation.KafkaListener; | |
| import org.springframework.kafka.support.KafkaHeaders; | |
| import org.springframework.messaging.handler.annotation.Header; | |
| import org.springframework.stereotype.Service; | |
| @Service | |
| public class Consumer { | |
| private final Logger logger = LoggerFactory.getLogger(Consumer.class); | |
| @KafkaListener(id = "myConsumer", topics = "purchases", groupId = "spring-boot", autoStartup = "false") | |
| public void listen(String value, | |
| @Header(KafkaHeaders.RECEIVED_TOPIC) String topic, | |
| @Header(KafkaHeaders.RECEIVED_MESSAGE_KEY) String key) { | |
| logger.info(String.format("Consumed event from topic %s: key = %-10s value = %s", topic, key, value)); | |
| } | |
| } |
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