一、新建消息发布者服务mqtt_publish 1.项目的pom文件如下所示: <?xmlversion="1.0"encoding="UTF-8"?> <projectxmlns="http://maven.apache.org/POM/4.0.0"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0https://maven.apache.org/xsd/maven-4.0.0.xsd"> <mo...