How to create Deployable WAR and JAR file by Spring Boot | Convert JAR to WAR and WAR to JAR

#Deployable #WAR #JAR #File #Creation

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For Creating Jar :
1. Put the plugin int the POM.xml ( if you are using maven )
(build)
(plugins)
(plugin)
(artifactId)spring-boot-maven-plugin(/artifactId)
(/plugin)
(/plugins)
(/build)
By Default create JAR file in the traget folder

If you want to change the embedded Tomcat server put below in the POM.XML

(dependency)
(artifactId)spring-boot-starter-web(/artifactId)
(exclusions)
(exclusion)
(artifactId)spring-boot-starter-tomcat(/artifactId)
(/exclusion)
(/exclusions)
(/dependency)

(dependency)
(artifactId)spring-boot-starter-jetty(/artifactId)
(/dependency)

2. Creating WAR File :

(packaging)war(/packaging)

(dependency)
(artifactId)spring-boot-starter-tomcat(/artifactId)
(scope)provided(/scope)
(/dependency)

and then your main class looks like below : ( which extends the SpringBootServletInitializer class )

@SpringBootApplication
public class SecondInitilize extends SpringBootServletInitializer {
public static void main(String[] args) {
}

@Override
protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
}
}

Thanks & Regards,
Debu Paul

[sonyguptayourdearestsony]

Great Job Keep it up! Explanation is also understandable. Need to some improvement show the created war and jar

[vijayrao]

Can you explain How to deploy jar file in production environment

[muhassinmusthafaa]

why we have both the classes InitializeApp and SecondInitializeApp at a time? only one main class required to run ? or u just showed these classes to identify the differences clearly ? Can we create a WAR without extending the SpringBootServletInitializer ?