Spring boot executable jar

Creating Spring boot executable jar

To create a completely self-contained executable jar(fat jars) file that we could run in production, Just spring-boot-maven-plugin to our pom.xml as shown in below pom.xml

Configuring build plugin in pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
	<modelVersion>4.0.0</modelVersion>

	<groupId>com.candidjava.spring.boot</groupId>
	<artifactId>helloworld</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<name>helloworldjar</name>
	<url>http://maven.apache.org</url>
	<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>2.0.4.RELEASE</version>
	</parent>
	
	<properties>
		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
		<java.version>1.8</java.version>
	</properties>

	<dependencies>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-web</artifactId>
		</dependency>
	</dependencies>

	<build>
		<plugins>
		 	<!-- Package as an executable jar -->
			<plugin>
				<groupId>org.springframework.boot</groupId>
				<artifactId>spring-boot-maven-plugin</artifactId>
			</plugin>
		</plugins>
	</build>
</project>

Spring boot Application (Example.java)

package com.candidjava.spring.boot.helloworld;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class Example {

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

}

Sample rest controller (UserController.java)

package com.candidjava.spring.boot.helloworld;

import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;


@RestController
public class UserController {

 @GetMapping("/user")
 String home() {
  return "Helloworld";
 }
}

Creating Spring boot executable jar

To create a completely self-contained executable jar(fat jars) file that we could run in production, Just spring-boot-maven-plugin to our pom.xml as shown in below pom.xml

How to build a spring boot jar using maven

Save your pom.xml and run mvn package from the command line or using eclipse maven goal.
Now look in the target directory, you should see helloworldjar.jar, you can copy the jar to any location and run it.

Running spring boot jar

To run that application, use the java -jar command, as follows:

..target >java -jar helloworldjar.jar

Download

Download source code from my github account Click here