# in28minutes Master Spring and Spring Boot: A Hands-On Java Course

> This repository organizes a broad, project-based curriculum for beginners moving from Spring Framework to Spring Boot, REST APIs, full-stack applications, Docker, and AWS. It offers a clear study sequence, but the README does not document a complete runnable setup for an individual lesson.

**in28minutes/master-spring-and-spring-boot** — Spring and Spring Boot Tutorial For Absolute Beginners - 10-in-1 - Spring to Spring Boot to REST API to Full Stack to Containers to Cloud

- Repository: https://github.com/in28minutes/master-spring-and-spring-boot
- Website: https:/links.in28minutes.com/sb
- Stars: 1,889 · Forks: 890
- Language: Java
- License: not declared
- Published: 2026-10-16 · Updated: 2026-10-16 · Language: en
- Canonical page: https://hysenlabs.com/projects/in28minutes-master-spring-and-spring-boot

## What the Master Spring and Spring Boot Curriculum Covers

Master Spring and Spring Boot targets developers who are new to Spring or Spring Boot and want a connected sequence of coding exercises. The README presents it as a hands-on course for absolute beginners. Its stated learning path extends from basic Spring Framework usage into Spring Boot, JPA, Hibernate, Spring MVC, REST APIs, full-stack development, testing, security, build tools, Docker, and AWS.

The repository is organized as a curriculum rather than one deployable application. Directories include `01-spring/`, `02-springboot/`, `03-jpa-getting-started/`, `11-web-application/`, `12-rest-api/`, and `13-full-stack/`. Later directories cover JUnit, Mockito, Spring Security, OAuth, Spring AOP, Maven, Gradle, Docker, and AWS. Based on this layout, a learner can select the directory corresponding to the current subject instead of treating the whole repository as a single service.

That structure is useful for structured study. It also means there is no single application-wide build command or deployment artifact to identify from the README. Each top-level directory may represent a separate project or a collection of lesson snapshots. The README does not establish whether every directory builds against the same Java, Spring Boot, dependency, or database version. Teams looking for one supported application scaffold will need to inspect a specific example rather than relying on the repository name.

## How the Spring-to-Spring-Boot Progression Works

The curriculum begins with manual object construction and dependency relationships in Java. Listed lessons introduce interfaces, loose coupling, Spring beans, Java configuration, the `ApplicationContext`, `BeanFactory`, autowiring, `@Primary`, and `@Qualifier`. This gives learners a framework for understanding why Spring manages object creation and dependency injection before Spring Boot introduces conventions and defaults.

The framework section continues with lazy and eager bean initialization, prototype and singleton scopes, `@PostConstruct`, `@PreDestroy`, stereotype annotations, XML configuration, and the relationship among the Spring Framework, its modules, and related Java EE and Jakarta concepts. These topics are useful for reading older Spring code, where configuration is often visible in Java or XML rather than concentrated in a Spring Boot application class.

The Spring Boot section changes the emphasis. Lecture names identify Spring Initializr, starter projects, auto configuration, `Spring Boot DevTools`, profiles, `@ConfigurationProperties`, embedded servers, and Actuator. The documented teaching mechanism is a staged course, not a unified reference chapter. The README lists each topic but does not show the generated project files, runtime configuration, or endpoint behavior. Exact implementation details must therefore come from the source under `02-springboot/` and its matching lecture.

## Preparing Java and Eclipse for the First Lessons

The README does not provide command-line installation steps. Instead, it recommends the latest version of Java and Eclipse IDE for Enterprise Java Developers, then links to separate installation videos for Windows, Linux, and macOS. It also links to troubleshooting pages for Java installation and Java configuration in Eclipse.

One explicit version boundary appears in the installation notes: Spring Boot 4.x.x works only with Java 17 or later. A learner following the current Spring Boot lessons should therefore verify that the installed JDK is at least Java 17. The repository includes separate files named `spring-boot3-1-updates.md`, `spring-boot3.2.x-changes.md`, and `spring-boot4-features.md`, so the required JDK may differ when an older lesson is selected.

No verified Eclipse archive name, SDK installation command, Maven installation command, Gradle installation command, or complete environment matrix appears in the README. Those commands should not be guessed. The first preparation task is to install Java and Eclipse through one of the linked platform-specific guides, then check the Java configuration named by the README. Before coding, the learner should also inspect the build file in the selected lesson because the repository does not establish one tool or Java level for all modules.

## Creating the First Spring Boot Hello API

The clearest documented first exercise is the Spring Boot lecture named `Setting up New Spring Boot Project with Spring Initializr`, followed by `Build a Hello World API with Spring Boot`. The intended workflow is to generate a new Spring Boot project with Spring Initializr and then study how the application exposes a small HTTP API. The repository's `02-springboot/` directory is the associated subject area.

The README does not list the dependencies selected in Spring Initializr, a Java package name, an application class, a controller annotation, an endpoint path, or a run command. It also does not state a server port. As a result, there is no honest copy-and-run example to reproduce here. The project name, generated package, and endpoint must be taken from the lesson rather than invented.

For a real first use, generate the project using the Spring Initializr lesson, compare its build file with the example under `02-springboot/`, and locate the application entry point and Hello API controller in that module. Then use the build configuration actually committed with that example. The expected result is the small API introduced by the lecture, but the exact URL and response body are not documented in the README. Learners who require complete offline instructions will find that gap significant.

## How JPA, Hibernate, and Spring MVC Fit into the Examples

The data-access portion introduces several layers rather than beginning with a single persistence choice. Lecture names cover an H2 console, a course table, Spring JDBC, inserting and deleting data, queries, `EntityManager`, JPA, and Spring Data JPA. It also includes a comparison between Hibernate and JPA. This sequence can help beginners understand the differences between explicit data access, the JPA object model, and repository-based Spring abstractions.

The limits of the outline matter. The README does not show the `Course` entity, column mappings, repository interface, transaction boundaries, SQL output, or database initialization configuration. It therefore cannot confirm which fetch behavior, update semantics, or schema rules any lesson uses. An application developer should inspect those files before applying the examples outside the course.

The web module then introduces Spring MVC controllers, `@ResponseBody`, `@Controller`, JSP responses, view resolvers, request parameters, and model data. Its named concepts describe a request-and-response flow from an HTTP request into controller logic and back to either an HTTP body or a resolved view. The `12-rest-api/` and `13-full-stack/` directories indicate later REST and frontend work, but the README excerpt does not document their routes, React integration, build process, or deployment configuration. The repository teaches connection points, not a production API contract.

## Docker, AWS, Security, and Build Tool Boundaries

The later repository entries extend beyond framework code. `81-maven/` and `82-gradle/` indicate lessons for both build systems. `83-docker/` covers application containerization, and `91-aws/` covers deployment to AWS. These stages can help a learner connect local application work with packaging and hosting, but the README does not identify a Dockerfile, image name, AWS service, deployment command, region, credential method, or infrastructure file. No such value can be safely supplied as a working example.

Security is represented by `71-spring-security/`, `72-oauth/`, and `73-spring-aop/`. The README excerpt does not document authentication configuration, authorization rules, OAuth grant types, token storage, secret handling, or security tests. The presence of these directories is enough to confirm study topics, but it is not evidence that a module is secure by default or ready for production. Anyone adopting security code should review the exact configuration and dependency versions inside the selected directory.

Testing coverage is represented by `51-junit/` and `52-mockito/`, while build-tool choices are split between Maven and Gradle. This breadth creates version and configuration decisions for each lesson. The repository does not state whether all examples use one dependency-management convention or how updates are propagated between stages. That is the principal constraint when using older course code in a current Spring Boot application.

## Maintenance, Licensing, and the Alternative Reference

The repository is not archived, and its last push was on 2026-09-19. It also has no GitHub releases. A recent push confirms repository activity, but the record does not identify individual releases for each module or establish that every lesson uses current dependency versions. There is no documented upgrade policy in the README explaining how Spring Boot, Spring Security, Maven, Gradle, or AWS examples are revised together.

The repository record does not identify a license. That creates a separate adoption check: the absence of a declared license means the README does not grant explicit permissions for copying, modification, redistribution, or internal use. This is a repository metadata issue rather than legal advice, and it must be resolved before organizational reuse.

A focused Spring Boot reference or a single Spring Initializr application is the main alternative. The approach differs in scope. This repository presents a broad teaching sequence across many frameworks and deployment topics. A focused reference concentrates on the current APIs and configuration of one framework version, while an individual project offers a smaller runnable boundary. This repository is the better fit for guided study. A focused reference or maintained application template is the better fit when consistent versioning and immediate reproducibility matter more than a broad learning path.

## Conclusion

Adopt this repository as a learning path if you are a Java beginner who wants guided examples across Spring, Spring Boot, data access, web development, containers, and AWS. Do not treat it as a production reference or an independently versioned application template. Before copying any lesson into a service, verify that its build configuration, dependency versions, Spring Boot baseline, Java requirement, tests, and deployment files match the intended system.

## FAQ

### What does Master Spring and Spring Boot teach?

The curriculum covers Spring Framework, Spring Boot, JPA, Hibernate, Spring MVC, REST APIs, full-stack development, testing, security, Maven, Gradle, Docker, and AWS through staged lessons and project directories.

### What Java version is required for Spring Boot 4.x.x?

The README states that Spring Boot 4.x.x works only with Java 17 or later.

### Does the README provide a complete installation command for Master Spring and Spring Boot?

No. It links to Java and Eclipse installation videos and recommends current versions, but it does not document a complete command-line installation or a build-and-run command for an individual lesson.

## Sources

- [in28minutes/master-spring-and-spring-boot on GitHub](https://github.com/in28minutes/master-spring-and-spring-boot)
- [Issues](https://github.com/in28minutes/master-spring-and-spring-boot/issues)
- [README](https://github.com/in28minutes/master-spring-and-spring-boot/blob/main/README.md)

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Hysen Labs editorial analysis, written from the project's own repository and release notes. Cite the canonical page: https://hysenlabs.com/projects/in28minutes-master-spring-and-spring-boot