Spring Boot Web + Thymeleaf Hello World Example in IntelliJ in 5 Easy Steps

This Tutorial is a quick starter for Spring Web Application using Spring Boot + ThymeLeaf, follow the below 5 easy steps to run your very first Spring Web Application in less than 5 minutes,

Step 1: Setup Spring Web Workspace using Spring Initializr

Open IntelliJ IDE,
Create New Project,
Select Spring Initializr
Select the Project SDK (I have selected Java SDK 1.8)
Click Next,
Select Project Type as Gradle Project
Java Version (8 in my case)
Select Dependencies: Spring Web and Thymeleaf
Click Next
Click Finish
If IntelliJ prompts click on "Load Gradle Project"

Step 2: Create Sping Web Controller

Under src > main > java com.example.demo, create MyHelloController.java

package com.example.demo;

import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;

@Controller
public class MyHelloWorldController {

    @GetMapping("/hello-world")
    public String greeting() {
        return "helloWorld";
    }

}

Step 3: Create Thymeleaf HTML Page

Navigate to src > main > resources > templates and create file helloWorld.html

<!DOCTYPE HTML>
<html xmlns:th="http://www.thymeleaf.org">
<head>
    <title>Spring Web + Thymeleaf - Hello World Example!</title>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
</head>
<body>
<h1>Hello World!</h1>
</body>
</html>

Step 4: Run the Spring Web Application

Navigate to src > main > java com.example.demo and open DemoApplication and Run the main method.

Step 5: View Results on Web Broswer

Now open any Web Brower (Safari, Chrome, Firefox, or Edge) and open URL: http://localhost:8080/hello-world

Hello World - Spring Web and ThymeLeaf Results

Download this project from GitHub: https://github.com/code2care/spring-web-thymeleaf-hello-world-example/tree/main/demo

Facing issues? Have Questions? Post them here! I am happy to answer!

Author Info:

Rakesh (He/Him) has over 14+ years of experience in Web and Application development. He is the author of insightful How-To articles for Code2care.

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You can also reach out to him via e-mail: rakesh@code2care.org

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