Springboot3+mqttV5集成（Emqx 5.8.3版本）

首先贴一下parent的pom依赖

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"><modelVersion>4.0.0</modelVersion><groupId>com.</groupId><artifactId>parent</artifactId><version>1.0.0</version><packaging>pom</packaging><name>parent</name><description>微服务项目父模块</description><properties><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding><project