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How to create a spring boot application?

When we start a new java based web application, spring boot comes as one of the best choices to start the backend development. As it is easy to develop, test and maintain. 

These are the four ways to create a spring boot application

  1. Spring Boot CLI
  2. Using STS (IDE)
  3. Convert Maven / Gradle Application to Spring Boot
  4. Using Spring Starter Web

Prerequisite for all the four ways are Java 8 or above and Maven/Gradle. 

Let us understand each options in detail

Spring Boot CLI

Spring Boot CLI provides a command line interface to create spring boot application. Users need to install a CLI tool to execute the commands. This is least preferred way as we have better options available on spring starter and in the IDE. 

Using STS (IDE)

STS (Spring Tool Suite) comes with spring starter integrated with it. We can choose few options and the tool will generate a basic spring boot structure. 

Follow the steps to create Spring Boot application using STS

  1. Install and Open STS in your desktop having all the prerequisite softwares installed.
  2. Click on File, goto New and select Spring Started Project
  3. Fill all the required details and click on next
  4. Select all the required dependencies from the list
  5. Click on Finish and wait for the project creation
Examples: 

1. Fill project name, group and artifact as per your choice


2. Select required dependencies for your project


Convert Maven / Gradle Application to Spring Boot

If you have an existing Maven or Gradle based application, it can be converted to a spring boot application be added Spring Boot Starter Parent tag in pom.xml or build.gradle and create a main class with @SpringBootApplication annotation.

Using Spring Started Webs

Spring Boot application can be created online and downloaded to your local machine. You need to open https://start.spring.io/ in your web browser and fill the form as it was done in STS for project creation.

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