Kafka Spring config for producer

KafkaProducerConfig.java

@Configuration
public class KafkaProducerConfig {
    @Value( "${kafka.bootstrapAddress}" )
    private String bootstrapAddress;

    @Bean
    public ProducerFactory<String, WeatherInfo> producerFactory() {
        Map<String, Object> configProps = new HashMap<>();
        configProps.put(
                ProducerConfig.BOOTSTRAP_SERVERS_CONFIG,
                bootstrapAddress);
        configProps.put(
                ProducerConfig.KEY_SERIALIZER_CLASS_CONFIG,
                StringSerializer.class);
        configProps.put(
                ProducerConfig.VALUE_SERIALIZER_CLASS_CONFIG,
                JsonSerializer.class);
        return new DefaultKafkaProducerFactory<>(configProps);
    }

    @Bean
    public KafkaTemplate<String, WeatherInfo> kafkaTemplate() {
        return new KafkaTemplate<>(producerFactory());
    }
}