Java Spring Boot - Technological watch
Introduction
Spring Boot is a popular open-source framework for building Java-based applications, especially web applications. It is part of the larger Spring ecosystem, which provides a comprehensive set of tools and libraries for developing enterprise-level Java applications. Spring Boot is designed to simplify the configuration and deployment of Spring applications by providing a convention-over-configuration approach. It encourages the use of best practices and allows developers to quickly build and deploy applications with minimal boilerplate code.
How to use Spring Boot (with a simple code example)
To use Spring Boot, you’ll need to follow these steps (from https://spring.io/quickstart) :
- Set up a Spring Boot project: Go on the url https://start.spring.io/ , and configure your project by selecting the desired dependencies and options. This web-based tool allows you to easily customize your Spring Boot project’s settings, such as the programming language, packaging, Java version, and additional dependencies.
- After configuring your project, click the “Generate” button to download a zip file containing the initial project structure.
- Extract the downloaded zip file to a suitable location on your machine.
- Import the project into your preferred Integrated Development Environment (IDE), such as IntelliJ IDEA or Eclipse.
- Once the project is imported, you can start writing your Spring Boot application code. Let’s take a simple example of creating a RESTful API endpoint:
Here’s a simple code example:
import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.SpringBootApplication;import org.springframework.web.bind.annotation.GetMapping;import org.springframework.web.bind.annotation.RestController;
@SpringBootApplicationpublic class MySpringBootApplication {
public static void main(String[] args) { SpringApplication.run(MySpringBootApplication.class, args); }}
@RestControllerclass HelloController {
@GetMapping("/hello") public String hello() { return "Hello, Spring Boot!"; }}
Pros of Spring Boot
- Rapid Development: Spring Boot enables rapid development by reducing boilerplate code and providing sensible defaults. Developers can focus on business logic rather than infrastructure setup.
- Microservices Support: Spring Boot is well-suited for building microservices-based architectures due to its lightweight nature and easy integration with cloud platforms.
- Auto-Configuration: Spring Boot automatically configures various components based on the project’s classpath, making setup and configuration easier.
- Rich Ecosystem: Spring Boot is part of the larger Spring ecosystem, providing access to a wide range of additional features and libraries.
- Community and Documentation: Spring Boot has a large and active community, with extensive documentation, tutorials, and resources available online.
Cons of Spring Boot
- Learning Curve: For developers new to Spring, the learning curve can be steep, especially if they are not familiar with the core Spring framework.
- Overhead: Spring Boot’s convention-over-configuration approach may introduce some unnecessary overhead for simple applications.
- Auto-Configuration Limitations: Sometimes, auto-configuration might not work as expected, and you might need to tweak settings manually.
- Jar Size: Spring Boot applications packaged as executable JARs may have larger file sizes due to embedded servers and libraries.
Overall, Spring Boot is a powerful and widely adopted framework that can significantly simplify the development of Java-based applications. However, as with any technology, it’s essential to understand its strengths and weaknesses to make informed decisions about its usage in your projects.
Falco - Technological watch
Learn how to protect your Kubernetes cluster in less than 5 minutes !
Immutable distribution - Fedora Silverblue - Technological watch
Learn what is an Immutable distribution in less than 5 minutes !
RabbitMQ - Technological watch
Learn what is RabbitMQ in less than 5 minutes !
OpenAPI / Swagger - Technological watch
Learn what is OpenAPI / Swagger in less than 5 minutes !
Svelte - Technological watch
Learn what is Svelte in less than 5 minutes !
PicoCSS - Technological watch
Learn what is PicoCSS in less than 5 minutes !
Terraform - Technological watch
Learn what is Terraform in less than 5 minutes !
Jenkins - Technological watch
Learn what is Jenkins in less than 5 minutes !