1、添加依赖

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-tomcat</artifactId>
    <scope>provided</scope>
</dependency>

2、添加插件

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-war-plugin</artifactId>
    <configuration>
        <failOnMissingWebXml>false</failOnMissingWebXml>
    </configuration>
</plugin>

3、指定打包后的文件名

<finalName>${project.artifactId}</finalName>

注：放在中

4、Application.java继承

org.springframework.boot.web.servlet.support.SpringBootServletInitializer;

后重写configure方法

protected SpringApplicationBuilder configure(SpringApplicationBuilder builder) {
        return builder.sources(MiaoshaApplication.class);
}

5、修改

jar

为

war