springboot打包 jar war

//打jar包，还需要修改pom.xml文件的<packaging>jar</packaging>
//@SpringBootApplication
//public class Demo2Application{
//  public static void main(String[] args) {
//      SpringApplication.run(Demo2Application.class, args);
//  }
//}

//打war包，还需要修改pom.xml文件的<packaging>war</packaging>
@SpringBootApplication
public class Demo2Application extends SpringBootServletInitializer {

    public static void main(String[] args) {
        SpringApplication.run(Demo2Application.class, args);
    }

    @Override
    protected SpringApplicationBuilder configure(SpringApplicationBuilder builder) {
        return builder.sources(Demo2Application.class);
    }
}