private String createRocketMQPropertyName(String channel, String propertyName) {
		return "spring.cloud.stream.rocketmq.bindings." + INPUT + ".consumer."
				+ propertyName;
	}
The name of {@link PropertySource} of {@link SpringApplication#defaultProperties}.
spring-cloud-alibaba-starters/spring-cloud-starter-bus-rocketmq/src/main/java/com/alibaba/cloud/bus/rocketmq/env/RocketMQBusEnvironmentPostProcessor.java