@Bean(RocketMQMessageConverter.DEFAULT_NAME)
	@ConditionalOnMissingBean(name = { RocketMQMessageConverter.DEFAULT_NAME })
	public CompositeMessageConverter rocketMQMessageConverter() {
		return new RocketMQMessageConverter().getMessageConverter();
	}
if you want to customize a bean, please use this BeanName {@code RocketMQMessageConverter.DEFAULT_NAME}.
spring-cloud-alibaba-starters/spring-cloud-starter-stream-rocketmq/src/main/java/com/alibaba/cloud/stream/binder/rocketmq/autoconfigurate/ExtendedBindingHandlerMappingsProviderConfiguration.java