                        课程
                    
                        /后端开发
                        
                            /Java
                        
                        /RocketMQ入门与内容发布平台实践

tools.cmd org.apache.rocketmq.example.quickstart.Producer命令报错

请问这个在报错呢 tools.cmd org.apache.rocketmq.example.quickstart.Producer 这个命令 Caused by: org.apache.rocketmq.remoting.exception.RemotingConnectException: connect to null failed