import org.springframework.boot.SpringApplication;

import org.springframework.boot.autoconfigure.SpringBootApplication;

import org.springframework.boot.builder.SpringApplicationBuilder;

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

​

@SpringBootApplication

public class Springboot2WebappJspApplication extends SpringBootServletInitializer{

​

    @Override

    protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {

        return application.sources(Springboot2WebappJspApplication.class);

    }

    public static void main(String[] args) {

        SpringApplication.run(Springboot2WebappJspApplication.class, args);

    }

}

Change the packaging type.

<packaging>war</packaging>

Add spring-boot-starter-tomcat as the provided scope

  <dependency>

      <groupId>org.springframework.boot</groupId>

      <artifactId>spring-boot-starter-tomcat</artifactId>

      <scope>provided</scope>

  </dependency>

Spring Boot Application or Main class extends SpringBootServletInitializer

import org.springframework.boot.SpringApplication;

import org.springframework.boot.autoconfigure.SpringBootApplication;

import org.springframework.boot.builder.SpringApplicationBuilder;

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

​

@SpringBootApplication

public class Springboot2WebappJspApplication extends SpringBootServletInitializer{

​

    @Override

    protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {

        return application.sources(Springboot2WebappJspApplication.class);

    }

    public static void main(String[] args) {

        SpringApplication.run(Springboot2WebappJspApplication.class, args);

    }

}