RocketMQLog:WARN No appenders could be found for logger (io.netty.channel.nio.NioEventLoop).

springBoot集成rocketMq启动的时候报

RocketMQLog:WARN No appenders could be found for logger (io.netty.channel.nio.NioEventLoop). 

RocketMQLog:WARN Please initialize the logger system properly.

原因是pom中的rocket的依赖版本太高了。

<dependency>
    <groupId>org.apache.rocketmq</groupId>
    <artifactId>rocketmq-spring-boot-starter</artifactId>
    <version>2.2.2</version>
    <exclusions>
        <exclusion>
            <artifactId>fastjson</artifactId>
            <groupId>com.alibaba</groupId>
        </exclusion>
        <exclusion>
            <artifactId>slf4j-api</artifactId>
            <groupId>org.slf4j</groupId>
        </exclusion>
    </exclusions>
</dependency>

只需要将 依赖版本从2.2.2降到2.2.0就可以了。