1.配置打包方式

2.移除springboot自带tomcat

<dependency>
	<groupId>org.springframework.boot</groupId>
	<artifactId>spring-boot-starter-web</artifactId>
	<!-- 移除tomcat -->
	<exclusions>
		<exclusion>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-tomcat</artifactId>
		</exclusion>
	</exclusions>
</dependency>

3.项目如有servlet相关报错引入servlet

<dependency>
     <groupId>javax.servlet</groupId>
     <artifactId>javax.servlet-api</artifactId>
     <version>3.1.0</version>
</dependency>

4.maven plugin设置

<finalName>xxxxx</finalName>
<plugins>
     <plugin>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-maven-plugin</artifactId>
     </plugin>
</plugins>

5.springboot启动类修改

public class StartApplication extends SpringBootServletInitializer {
      public static void main(String[] args) {
            SpringApplication.run(StartApplication.class, args);
      }
      @Override
      protected SpringApplicationBuilder configure(SpringApplicationBuilder builder) {
            return builder.sources(StartApplication.class);
      }
}

6.命令窗口输入命令打包(打包前最好先编译整个项目)
mvn clean package