rocketmq-console报错 Failed to fetch broker history data

问题

本地启动了RocketMQ，RocketMQ-console页面打开后弹出了三个报错

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Failed to fetch broker history data

Failed to fetch topic current data

Failed to fetch cluster list

探索

难道是RocketMQ和console的版本不匹配？

我的RocketMQ是5.4.0，RocketMQ-console是2.1.0，查阅资料发现是匹配的。

不对

难道是RocketMQ启动没有成功，查看namesrv和broker的日志，发现

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The Name Server boot success. serializeType=JSON, address 0.0.0.0:9876

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The broker[zkf, 192.168.80.1:10911] boot success. serializeType=JSON and name server is 127.0.0.1:9876

查看端口是否被监听

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C:\Users\28718>netstat -ano | findstr :9876
  TCP    0.0.0.0:9876           0.0.0.0:0              LISTENING       45728
  TCP    127.0.0.1:9876         127.0.0.1:53661        ESTABLISHED     45728
  TCP    127.0.0.1:9876         127.0.0.1:62201        ESTABLISHED     45728
  TCP    127.0.0.1:9876         127.0.0.1:63249        ESTABLISHED     45728
  TCP    127.0.0.1:53661        127.0.0.1:9876         ESTABLISHED     111896
  TCP    127.0.0.1:62201        127.0.0.1:9876         ESTABLISHED     37616
  TCP    127.0.0.1:63249        127.0.0.1:9876         ESTABLISHED     37616
  TCP    192.168.80.1:9876      192.168.80.1:56392     ESTABLISHED     45728
  TCP    192.168.80.1:9876      192.168.80.1:65307     TIME_WAIT       0
  TCP    192.168.80.1:56392     192.168.80.1:9876      ESTABLISHED     45728
  TCP    [::]:9876              [::]:0                 LISTENING       45728

C:\Users\28718>netstat -ano|findstr :10911
  TCP    0.0.0.0:10911          0.0.0.0:0              LISTENING       111896
  TCP    [::]:10911             [::]:0                 LISTENING       111896

C:\Users\28718>echo %ROCKETMQ_HOME%
F:\dev_install\rocketmq-5.4.0

C:\Users\28718>echo %JAVA_HOME%
F:\Java\jdk17

没有问题

那么看看源码吧

RocketMQ-console源码

console是一个SpringBoot项目，application.yml的配置

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server:
  port: 8082
  servlet:
    encoding:
      charset: UTF-8
      enabled: true
      force: true

但是我在jar的同级目录中也配置了application.yml，并配置了server.port=8080。

错误找到了，jar的同级可以不用配置application.yml，删除这个配置，重新启动。

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java -jar rocketmq-dashboard-2.1.0.jar

访问

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http://localhost:8082/#/ops

成功！！！