Spring-Cloud-Alibaba/spring-cloud-alibaba-examples/spring-cloud-bus-rocketmq-example/src/main/resources/bootstrap.properties

spring.application.name=spring-cloud-bus-rocketmq-example
spring.cloud.stream.rocketmq.binder.namesrv-addr=127.0.0.1:9876
spring.cloud.bus.id=${spring.application.name}:${server.port}