spring cloud alibaba组件RocketMQ引入

地址：https://github.com/alibaba/spring-cloud-alibaba/blob/master/spring-cloud-alibaba-examples/rocketmq-example/readme-zh.md
官网：http://rocketmq.apache.org/docs/quick-start/

三步：1.加依赖（pom.xml）、2.改配置（application.yml）、3.加注解（java类或者方法之上）

1.pom.xml中加载rocketmq

<dependency>
	<groupId>com.alibaba.cloud</groupId>
	<artifactId>spring-cloud-starter-stream-rocketmq</artifactId>
</dependency>

2.application.yml中添加配置

server:
  port: 8081
spring:
  application:
    name: serviceA
  cloud:
    stream:
      rocketmq:
        binder:
          name-server: 127.0.0.1:9876
        bindings:
          input:
            consumer: