我尝试springboot集成rocketmq，遇到的问题，connect to [127.0.0.1:9876] failed，社区的大哥帮忙看下

1、controller

@RestController
@RequestMapping("/scoring")
public class ScoringTestController {
    @Autowired
    private RocketMQTemplate rocketMQTemplate;

    @PostMapping("/test")
    public AjaxResult testScoring(@RequestBody Map data) throws Exception {
        User user = new User("llp", "110");
        rocketMQTemplate.convertAndSend("convertAndSendTopic", user);
        AjaxResult ajax = AjaxResult.success();
        return ajax;
    }
}

2、消费者

@Component
@RocketMQMessageListener(topic = "simple-send-topic",consumerGroup = "springboot_consumer_group")
public class SimpleMessageListener implements RocketMQListener<User> {
    @Override
    public void onMessage(User message) {
        System.out.println(message);
    }
}

3、配置文件

rocketmq:
  name-server: 127.0.0.1:9876
  producer:
      # 发送同一类消息的设置为同一个group，保证唯一
    group: springboot_producer_group

4、实体

@AllArgsConstructor
@NoArgsConstructor
@Data
//在实际开发中生产者和消费者在不通的服务器上，数据的传输需要通过远程调用的方式，自然就涉及到对象的序列化问题了
public class User implements Serializable {
    private static final long serialVersionUID = 4894770668175892723L;
    String userName;
    String userId;
}

5、依赖

        <dependency>
            <groupId>org.apache.rocketmq</groupId>
            <artifactId>rocketmq-spring-boot-starter</artifactId>
            <version>2.1.1</version>
        </dependency>
        <dependency>
            <groupId>org.apache.rocketmq</groupId>
            <artifactId>rocketmq-client</artifactId>
            <version>4.8.0</version>
        </dependency>
        <dependency>
            <groupId>org.apache.rocketmq</groupId>
            <artifactId>rocketmq-common</artifactId>
            <version>4.8.0</version>
        </dependency>

我尝试springboot集成rocketmq，遇到的问题，connect to [127.0.0.1:9876] failed。代码很简单，不知道错误在哪里。是在若依框架下开发的。
 

17:15:33.559 [restartedMain] WARN  o.a.c.l.WebappClassLoaderBase - [log,173] - The web application [ROOT] appears to have started a thread named [Thread-9] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
 sun.net.dns.ResolverConfigurationImpl.notifyAddrChange0(Native Method)
 sun.net.dns.ResolverConfigurationImpl$AddressChangeListener.run(ResolverConfigurationImpl.java:144)
17:15:33.560 [restartedMain] WARN  o.a.c.l.WebappClassLoaderBase - [log,173] - The web application [ROOT] appears to have started a thread named [lettuce-timer-3-1] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
 java.lang.Thread.sleep(Native Method)
 io.netty.util.HashedWheelTimer$Worker.waitForNextTick(HashedWheelTimer.java:600)
 io.netty.util.HashedWheelTimer$Worker.run(HashedWheelTimer.java:496)
 io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
 java.lang.Thread.run(Thread.java:748)
17:15:33.582 [restartedMain] ERROR o.s.b.SpringApplication - [reportFailure,870] - Application run failed
java.lang.RuntimeException: java.lang.IllegalStateException: org.apache.rocketmq.remoting.exception.RemotingConnectException: connect to [127.0.0.1:9876] failed
    at org.apache.rocketmq.spring.autoconfigure.ListenerContainerConfiguration.registerContainer(ListenerContainerConfiguration.java:123)
    at java.util.HashMap.forEach(HashMap.java:1289)
    at org.apache.rocketmq.spring.autoconfigure.ListenerContainerConfiguration.afterSingletonsInstantiated(ListenerContainerConfiguration.java:79)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:974)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:932)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:591)
    at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:145)
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:780)
    at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:453)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:343)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1370)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1359)
    at com.ruoyi.RuoYiApplication.main(RuoYiApplication.java:18)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49)
Caused by: java.lang.IllegalStateException: org.apache.rocketmq.remoting.exception.RemotingConnectException: connect to [127.0.0.1:9876] failed
    at org.apache.rocketmq.client.impl.factory.MQClientInstance.updateTopicRouteInfoFromNameServer(MQClientInstance.java:679)
    at org.apache.rocketmq.client.impl.factory.MQClientInstance.updateTopicRouteInfoFromNameServer(MQClientInstance.java:509)
    at org.apache.rocketmq.client.impl.consumer.DefaultMQPushConsumerImpl.updateTopicSubscribeInfoWhenSubscriptionChanged(DefaultMQPushConsumerImpl.java:866)
    at org.apache.rocketmq.client.impl.consumer.DefaultMQPushConsumerImpl.start(DefaultMQPushConsumerImpl.java:647)
    at org.apache.rocketmq.client.consumer.DefaultMQPushConsumer.start(DefaultMQPushConsumer.java:698)
    at org.apache.rocketmq.spring.support.DefaultRocketMQListenerContainer.start(DefaultRocketMQListenerContainer.java:279)
    at org.apache.rocketmq.spring.autoconfigure.ListenerContainerConfiguration.registerContainer(ListenerContainerConfiguration.java:120)
    ... 17 common frames omitted
Caused by: org.apache.rocketmq.remoting.exception.RemotingConnectException: connect to [127.0.0.1:9876] failed
    at org.apache.rocketmq.remoting.netty.NettyRemotingClient.getAndCreateNameserverChannel(NettyRemotingClient.java:445)
    at org.apache.rocketmq.remoting.netty.NettyRemotingClient.getAndCreateChannel(NettyRemotingClient.java:400)
    at org.apache.rocketmq.remoting.netty.NettyRemotingClient.invokeSync(NettyRemotingClient.java:369)
    at org.apache.rocketmq.client.impl.MQClientAPIImpl.getTopicRouteInfoFromNameServer(MQClientAPIImpl.java:1365)
    at org.apache.rocketmq.client.impl.MQClientAPIImpl.getTopicRouteInfoFromNameServer(MQClientAPIImpl.java:1355)
    at org.apache.rocketmq.client.impl.factory.MQClientInstance.updateTopicRouteInfoFromNameServer(MQClientInstance.java:622)
    ... 23 common frames omitted
17:15:33.585 [restartedMain] INFO  o.a.r.s.s.DefaultRocketMQListenerContainer - [destroy,258] - container destroyed, DefaultRocketMQListenerContainer{consumerGroup='springboot_consumer_group', nameServer='127.0.0.1:9876', topic='simple-send-topic', consumeMode=CONCURRENTLY, selectorType=TAG, selectorExpression='*', messageModel=CLUSTERING}
17:15:33.590 [restartedMain] INFO  o.q.c.QuartzScheduler - [shutdown,666] - Scheduler quartzScheduler_$_NON_CLUSTERED shutting down.
17:15:33.590 [restartedMain] INFO  o.q.c.QuartzScheduler - [standby,585] - Scheduler quartzScheduler_$_NON_CLUSTERED paused.
17:15:33.590 [restartedMain] INFO  o.q.c.QuartzScheduler - [shutdown,740] - Scheduler quartzScheduler_$_NON_CLUSTERED shutdown complete.
17:15:33.590 [restartedMain] INFO  sys-user - [shutdownAsyncManager,31] - ====关闭后台任务任务线程池====
17:15:33.598 [restartedMain] WARN  o.s.c.a.CommonAnnotationBeanPostProcessor - [postProcessBeforeDestruction,185] - Destroy method on bean with name 'shutdownManager' threw an exception: java.lang.ExceptionInInitializerError
17:15:33.599 [restartedMain] INFO  c.a.d.p.DruidDataSource - [close,2204] - {dataSource-1} closing ...
17:15:33.602 [restartedMain] INFO  c.a.d.p.DruidDataSource - [close,2277] - {dataSource-1} closed
Disconnected from the target VM, address: '127.0.0.1:56808', transport: 'socket'

Process finished with exit code 1