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About Eidher Julian

Eidher Julian Cadavid
Eidher Julian is a Systems Engineer and Software Engineering Specialist with 13+ years of experience as a Java developer. He is an Oracle Certified Associate and SOA Certified Architect.

Spring Boot for war

Spring Boot supports the following embedded servlet containers:

  • Tomcat
  • Jetty
  • Undertow

You can use Maven, Gradle, or Ant/Ivy as build tools to generate the jar file. However, you may need to use your own server as WebLogic, Wildfly, JBoss, etc. In that case, you would need to generate a WAR file of your Spring Boot project. To do that you have to do the next changes:

  • Change artifact type to WAR
  • Extend SpringBootServletInitializer
  • Override the configure method
public class Application extends SpringBootServletInitializer {

    protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
        return application.sources(Application.class);

mvn package will create a hybrid and a traditional (.original) WAR. The traditional WAR is produced without the embedded tomcat. So, you can use the .war.original file in your application server.

Published on Java Code Geeks with permission by Eidher Julian, partner at our JCG program. See the original article here: Spring Boot for war

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