Spring Boot Build Command Line App

Create Gradle Spring Boot project with SPRING INITIALIZR

I chose Groovy language for the project, but if you want Java, text below with little changes also helps you.

Edit build.gradle and add to it bootRun section

buildscript {
	ext {
		springBootVersion = '1.3.1.RELEASE'
	}
	repositories {
		mavenCentral()
	}
	dependencies {
		classpath("org.springframework.boot:spring-boot-gradle-plugin:${springBootVersion}")
	}
}

apply plugin: 'groovy'
apply plugin: 'idea'
apply plugin: 'spring-boot'

jar {
	baseName = 'myapp'
	version = '0.0.1-SNAPSHOT'
}
sourceCompatibility = 1.8
targetCompatibility = 1.8

repositories {
	mavenCentral()
}


dependencies {
	compile('org.codehaus.groovy:groovy')
	testCompile('org.springframework.boot:spring-boot-starter-test')
}

task wrapper(type: Wrapper) {
	gradleVersion = '2.9'
}

// this code split parameters and allow us use parameters in our application
bootRun {
	if ( project.hasProperty('args') ) {
		args project.args.split('\\s+')
	}
}

create MyController class

@Controller
class MyController implements CommandLineRunner {

	private Logger logger = LoggerFactory.getLogger(this.getClass())

	@Override
	void run(String... args) throws Exception {
		if(!args) {
			logger.warn("You must pass at least one parametr.")
			logger.warn("Example: bootRun -Pargs=\"arg1 arg2 arg3\"") 
		}
		// print parameters which we sent from command line
		args.each{ arg -> 
			logger.info(arg)
		} 
	} 
}

Run application
gradle bootRun -Pargs=”arg1 arg2 arg3″