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

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

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

<dependency>
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-legacy</artifactId>
  <version>1.1.0.RELEASE</version>
</dependency>

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>com.example.DemoApplication</param-value>
  </context-param>
  <listener>
    <listener-class>org.springframework.boot.legacy.context.web.SpringBootContextLoaderListener</listener-class>
  </listener>
<!--
  <filter>
    <filter-name>metricFilter</filter-name>
    <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
  </filter>
  <filter-mapping>
    <filter-name>metricFilter</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>
-->
  <servlet>
    <servlet-name>appServlet</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
      <param-name>contextAttribute</param-name>
      <param-value>org.springframework.web.context.WebApplicationContext.ROOT</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>appServlet</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>
</web-app>

cd 项目跟目录（和pom.xml同级）
mvn clean package
## 或者执行下面的命令
## 排除测试代码后进行打包
mvn clean package -Dmaven.test.skip=true

java -jar target/spring-boot-scheduler-1.0.0.jar

nohup java -jar target/spring-boot-scheduler-1.0.0.jar &

java -jar app.jar --spring.profiles.active=product

 <packaging>war</packaging>

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

public class ServletInitializer extends SpringBootServletInitializer {
  @Override
  protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
    return application.sources(BootdemoApplication.class);
  }
}