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SpringBoot- Creating SpringBoot Application

SpringBoot - Creating Spring Boot Application

To create Spring Boot based applications The Spring Team (The Pivotal Team) has provided the following three approaches.

  1. Using Maven

  2. Using Spring Initializer (http://start.spring.io/)

  3. Using Spring STS IDE

  4. Using Spring Boot CLI Tool

1. Spring Boot using Maven

Add maven dependencies in pom.xml & do maven build

<project>
	<parent>
 <groupId>org.springframework.boot</groupId>
 <artifactId>spring-boot-starter-parent</artifactId>
 <version>1.5.6.RELEASE</version>
	</parent>

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

	<properties>
 <java.version>1.8</java.version>
	</properties>

</project>

2.Spring Initializer

Spring Initializer provides an extensible API to generate quick start projects. It also provides a configurable service: you can see our default instance at https://start.spring.io. It provides a simple web UI to configure the project to generate and endpoints that you can use via plain HTTP.

It will generate the Artifact.zip file, extract it and run maven build: mvn clean install package

[INFO] --- spring-boot-maven-plugin:1.4.4.RELEASE:repackage (default) @ SpringBootDemo ---
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 01:27 min
[INFO] Finished at: 2017-01-30T18:55:21+05:30
[INFO] Final Memory: 27M/160M
[INFO] ------------------------------------------------------------------------

3.Spring STS IDE

The Spring Tool Suite is an Eclipse-based development environment that is customized for developing spring applications. We can download it from here.

http://1.bp.blogspot.com/-e48a8bRr0UQ/UUL-jInTqqI/AAAAAAAAFNI/TeJtvnVjoQQ/s1600/sts_tut1_pic_2.PNG

4.Spring Boot CLI Tool

The Spring Boot CLI is a command line tool that can be used if you want to quickly prototype (creates project Structure) with Spring. It allows you to run Groovy scripts, which means that you have a familiar Java-like syntax, without so much boilerplate code.

You don’t need to use the CLI to work with Spring Boot but it’s definitely the quickest way to get a spring application off the ground.

You can download the Spring CLI distribution from the Spring software repository:

SDKMAN! (The Software Development Kit Manager) can be used for managing multiple versions of various binary SDKs, including Groovy and the Spring Boot CLI. Get SDKMAN! from sdkman.io and install Spring Boot with

$ sdk install springboot
$ spring --version
Spring Boot v1.5.0.RELEASE

A simple web application that you can use to test your installation. Create a file called app.groovy as

$ spring run app.groovy

It will take some time when you first run the application as dependencies are downloaded. Subsequent runs will be much quicker.

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