+spring.kafka.consumer.auto-offset-reset. earliest
+spring.kafka.consumer.group-id=splitter
+spring.kafka.bootstrap-servers=localhost:9092
+spring.kafka.consumer.key-deserializer=org.apache.kafka.common.serialization.StringDeserializer
+spring.kafka.consumer.value-deserializer=org.apache.kafka.common.serialization.StringDeserializer
+spring.kafka.producer.key-serializer=org.apache.kafka.common.serialization.StringSerializer
+spring.kafka.producer.value-serializer=org.apache.kafka.common.serialization.StringSerializer