Build Java Spring Boot REST API Project | RestController, Service and Repository Annotations | 2026

Build Java Spring Boot REST API project with MySQL database.
Github link 🔗 https://github.com/thinkconstructive/annotations-demo
Spring and Spring Boot annotations course 🔗 https://www.youtube.com/playlist?list=PLcs1FElCmEu2YbE605h5kZ730744n3N4K

Confused by Spring Boot annotations? In this video, I will break down the Three-Tier Architecture with Java Spring Boot REST API Project. We’ll cover exactly when to use @RestController, @Service, and @Repository so you can write cleaner, professional-grade Java code.

Chapters 📚
00:00 What’s in this course?
00:10 Welcome note
01:04 What are Stereotypes annotation in Spring Boot ?
01:52 What is Service in Spring Boot?
02:40 What is Repository in Spring Boot?
03:42 What is Controller in Spring Boot?
04:37 What is RestController in Spring Boot?
05:37 What is ResponseBody annotation in Spring Boot?
06:10 Three Layer Architecture in Spring Boot REST API
07:22 Java Spring Boot REST API Project with MySQL Database
27:42 REST API Testing with Postman Tool
28:53 Outro

#SpringBoot #Java #SoftwareArchitecture #CodingTutorial #BackendDevelopment #restapi #databases #mysql #SoftwareEngineer #JavaDeveloper #JavaInterviewQuestions #SpringBootInterviewQuestions #springbootproject #RESTAPITutorial #thinkconstructive #eshapuri

Don’t just use Spring—understand it! Watch now and level up your #SpringBoot development skills.

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Queries ⁉️
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