package com.hw.mqtt; import org.springframework.beans.factory.annotation.Value; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration; @SpringBootApplication(exclude = DataSourceAutoConfiguration.class) public class HwMqttBrokerApplication { public static void main(String[] args) { SpringApplication.run(HwMqttBrokerApplication.class, args); } }