Spring Boot Backend Development Course, What is AWS

1. Introduction

In today’s web application development, a variety of technology stacks exist. Among them, Spring Boot, an efficient web framework based on Java, and AWS (Amazon Web Services), the epitome of cloud services, are loved by many developers. This article aims to explore the basics of backend development using Spring Boot and its integration with AWS.

2. What is Spring Boot?

Spring Boot is a Java-based framework built on the Spring framework. This framework reduces the complexity of the existing Spring framework and enables more concise and faster development. Spring Boot automatically configures various settings, allowing developers to focus on business logic.

2.1 Features

  • Auto Configuration: Developers can easily build enterprise-level Spring applications without complex XML configuration.
  • Standalone: Spring Boot applications can run independently without the need to be deployed on an external server.
  • Consistent Deployment: Applications can be easily packaged as jar files for deployment.
  • Starter Dependencies: Various starters allow for the easy addition of required libraries.

3. Installing Spring Boot and Setting Up the Environment

The requirements for using Spring Boot are as follows:

3.1 Requirements

  • Java Development Kit (JDK) 8 or higher
  • IDE (IntelliJ, Eclipse, etc.)
  • Maven or Gradle

3.2 Creating a Project

You can create a new Spring Boot project using Spring Initializr. Select the required dependencies and set up the Java version, group, artifact, etc., to generate the project.

4. Building a RESTful API

Building a RESTful API using Spring Boot is very straightforward. We will define the API through the following process.

4.1 Creating a Controller


@RestController
@RequestMapping("/api")
public class UserController {

    @GetMapping("/users")
    public List getAllUsers() {
        // Return the list of users
    }
}

4.2 Implementing Service and Repository Layers

Create a service class to handle business logic and implement a repository for interaction with the database.

5. What is AWS?

AWS (Amazon Web Services) is a cloud computing service provided by Amazon. Businesses can utilize AWS for data storage, analysis, deployment, and management services. AWS operates data centers worldwide and provides reliable and scalable cloud services to numerous users.

5.1 Key Services of AWS

  • EC2: Elastic Compute Cloud, providing virtual servers.
  • S3: Simple Storage Service, allowing for file storage and management.
  • RDS: Relational Database Service, offering managed database services.
  • Lambdas: Simplifies code execution through serverless computing.

6. Integration of Spring Boot and AWS

The process of deploying a Spring Boot application to AWS is as follows:

6.1 Deploying to AWS EC2

After packaging the Spring Boot application as a jar file, you can deploy it to an AWS EC2 instance. Create an EC2 instance, configure the environment, and then transfer the jar file to execute it.

6.2 Hosting Static Files on AWS S3

You can manage and deploy static files of your web application using AWS S3. This method is efficient and cost-effective.

7. Conclusion

Spring Boot and AWS play a very important role in modern web application development. With these tools, developers can develop and deploy applications more quickly and efficiently. We will continue to provide deeper knowledge through various courses and examples, so please stay tuned.

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