Spring Boot - MessagingYou want to send JSON objects to a Kafka topic and receive them as Java objects in Spring Boot. Which configuration is necessary?AConfigure KafkaTemplate and @KafkaListener with JSON serializer and deserializerBUse String serializer and deserialize manually in listenerCNo configuration needed; Kafka handles JSON automaticallyDUse @KafkaJsonListener annotation instead of @KafkaListenerCheck Answer
Step-by-Step SolutionSolution:Step 1: Understand serialization and deserializationKafka needs serializers to convert Java objects to JSON and deserializers to convert JSON back to Java objects.Step 2: Apply correct configurationKafkaTemplate and @KafkaListener must be configured with JSON serializer/deserializer to handle JSON automatically.Final Answer:Configure KafkaTemplate and @KafkaListener with JSON serializer and deserializer -> Option AQuick Check:JSON serialization requires explicit config [OK]Quick Trick: Set JSON serializer/deserializer for object messages [OK]Common Mistakes:Assuming Kafka auto-handles JSONUsing String serializer for JSON objectsLooking for non-existent @KafkaJsonListener
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