This course helps you understand how Spring works as a system. You move from basic use to a clear view of how Spring Framework, Spring MVC, data work, and Spring Boot fit together. You stop guessing why Spring works and stop copying code without knowing what it does.
Why this course matters
Many developers build REST services with Spring Boot by copying simple examples. This works at first, but questions soon appear. You may wonder why a few annotations change how your app runs. You may ask what happens inside the framework. Even developers with years of Spring work often know only part of the picture.
Most beginner guides show you how to do tasks but do not explain why they work. This course fills that gap. It builds on ten years of hands-on work with Spring. You learn how Spring parts connect and why certain patterns appear across its modules.
What you will learn
Start without Spring
You first build a simple web app with pure Java, Tomcat, and Maven. This shows you the problems Spring solves. You see the setup steps that Spring later reduces for you.
Core Spring ideas
You learn the main Spring concepts. You work with the IoC container and dependency injection. You see how to use configs and switch between different environments.
Spring MVC basics
You build REST endpoints that return JSON or XML. You also create server-side HTML pages with template engines. You see how Spring MVC routes requests and builds responses.
Work with data
You use JdbcTemplate for direct database work. You try embedded databases for quick tests. You learn Spring Data JDBC and see how to build simple repositories. You also learn how transactions work with @Transactional.
Spring Boot deep dive
You do more than make a quick starter app. You learn how Spring Boot uses core Spring tools. You explore the idea of “opinionated” defaults. You see how auto-config works and how to build your own auto-config modules.
How the course is built
You grow your skills step by step with real practice. Each module builds on the last one. You work on one project through the whole course and add new features over time. By the end, you have a full app you can run as a JAR.
You also get extra tasks for each module. You can check source code and solutions. This helps you test your skills and apply the ideas to your own projects.
