How to create a basic application in Java Spring Boot Last Updated : 15 Jul, 2025 Comments Improve Suggest changes Like Article Like Report Spring Boot is the most popular Java framework that is used for developing RESTful web applications. In this article, we will see how to create a basic Spring Boot application.Spring Initializr is a web-based tool using which we can easily generate the structure of the Spring Boot project. It also provides various different features for the projects expressed in a metadata model. This model allows us to configure the list of dependencies that are supported by JVM. Here, we will create the structure of an application using Spring Initializr and then use an IDE to create a sample GET route. Therefore, to do this, the following steps are followed: Step 1: Go to Spring Initializr Fill in the details as per the requirements. For this application: Project: MavenLanguage: JavaSpring Boot: 3.1.5Packaging: JARJava: 17Dependency: Spring WebIDE: IntelliJ IDEANOTE: For creating a simple application in Java Spring Boot we can import our code directly into various IDEs: Spring Tool Suite(STS)IntelliJ IDEAVSCodeHere, we have used IntelliJ IDEA for creating a basic Spring Boot application Step 2: Specify Group Id and Artifact Id. Here we have provided the Group name as "com.gfg" and the Artifact ID as "Spring Boot app".Step 3: Click on Generate which will download the starter project. Step 4: Extract the zip file. Now open a suitable IDE and then go to File->New->Project from existing sources->Spring-boot-app and select pom.xml. Click on import changes on prompt and wait for the project to sync. Note: In the Import Project for Maven window, make sure you choose the same version of JDK which you selected while creating the project. Step 5: Go to src->main->java->com.gfg.Spring.boot.app, create a java class with name as Controller and add the annotation @RestController. Now create a GET API as shown below: Java @RestController public class Controller { // One syntax to implement a // GET method @GetMapping("/") public String home() { String str = "<html><body><font color=\"green\">" + "<h1>WELCOME To GeeksForGeeks</h1>" + "</font></body></html>"; return str; } // Another syntax to implement a // GET method @RequestMapping( method = { RequestMethod.GET }, value = { "/gfg" }) public String info() { String str2 = "<html><body><font color=\"green\">" + "<h2>GeeksForGeeks is a Computer" + " Science portal for Geeks. " + "This portal has been " + "created to provide well written, " + "well thought and well explained " + "solutions for selected questions." + "</h2></font></body></html>"; return str2; } } Step 6: This application is now ready to run. Run the SpringBootAppApplication class and wait for the Tomcat server to start. Note: The default port of the Tomcat server is 8080 and can be changed in the application.properties file. Step 7: Now go to the browser and enter the URL localhost:8080. Observe the output and now do the same for localhost:8080/gfg Output On running the above application, the following output is generated: ConclusionBy following the above steps, we have created a simple RESTful route with some message in it. In order to make a more complex application, more RESTful routes are added to perform the CRUD operations on the server. Comment More infoAdvertise with us A AakashYadav4 Follow Improve Article Tags : Springboot java-advanced Web-Programs Java-Spring Similar Reads Spring Boot Tutorial Spring Boot is a Java framework that makes it easier to create and run Java applications. It simplifies the configuration and setup process, allowing developers to focus more on writing code for their applications. 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