Spring Boot Concepts and Utilization

Knowing design patterns will make it easier to learn not only Spring but also many other technologies and programming languages. It will also help you develop more flexible and reusable object-oriented software.

Refactoring is one of the basic skills that a software engineer should have. This course is designed to explain and practice various code smells and refactoring techniques in a more practical way using IntelliJ and Java.

Learn “Effective Java,” the ultimate Java learning course, more easily and completely. By taking this course, you can improve not only your Java programming knowledge and skills, but also your learning ability.

If you want to grow as a developer who is recognized by your colleagues, team, and even the company, and can work with more responsibility and influence? In this lecture, I will share with you my know-how on growth.

Learn “Effective Java,” the ultimate Java learning guide, more easily and completely. By taking this course, you can improve not only your Java programming knowledge and skills, but also your learning ability.

Learn “Effective Java,” the ultimate Java learning course, more easily and completely. By taking this course, you can improve not only your Java programming knowledge and skills, but also your learning ability.

Have you ever wondered "how" the many Java libraries and frameworks you use provide this functionality? In this course, learn how to manipulate various codes or objects provided by Java and take your Java skills to the next level.

Learn about Spring Data JPA, which provides several features to make using JPA (Java Persistence API) easier.

This course uses Spring Boot and teaches you the core Spring technologies. Therefore, this is a useful Spring course for developers or students who are using Spring Boot-based projects.

If you are a student or developer who is using or studying the Java programming language, you will learn various methods of testing your applications that you must know.

Understand the operating principles and structure of Spring Security and learn how to set up authentication and authorization features required for web applications by utilizing the various functions provided by Spring Security.

The features added to Java 8 are widely used in APIs provided by Java as well as third-party libraries and frameworks such as Spring. If you are a Java developer in this era, you must know them. Make them your own technology easily and quickly through this lecture.

This course covers Spring Web MVC, a Java Servlet-based MVC framework. For a more efficient learning experience, please take the Spring Framework Core Technologies course.

Developer interview taught directly by a senior software engineer who went through Naver and Amazon and is currently at Microsoft!! This lecture focuses on the "developer interview" rather than the "coding interview". When hiring a developer or, conversely, when changing jobs or seeking employment, the "coding interview" is never the only thing that determines success or failure. Through this lecture, I hope you will learn more about how to hire a developer or prepare for a change or seeking employment.

This course develops a REST API that satisfies Self-Descriptive Message and HATEOAS (Hypermedia as the engine of application state) using various Spring technologies.

This course is for those who are new to the Spring framework. By looking at the code of the official Spring example project called Spring - PetClinic, you can easily and quickly understand the following core features of Spring.

This lecture is an extension of the "Spring Boot Concepts and Utilization" lecture and covers the Spring Boot updates that have been made over the past two years. Check out the new features and changes from Spring Boot 2.1 to 2.4 and update to the latest version of Spring Boot.

In this course, you will learn how to develop a web application using various Java-based open source technologies including Spring, JPA, and Thymeleaf, which are actually operating services. If you study this course enough, you will be able to create your own web service or create a portfolio that will help you get a job.

By looking at the code of the official Spring example project called Spring-PetClinic, you can easily and quickly understand the following core features of Spring.

It covers major updates from Java 9 to Java 21 in detail. It will be continuously updated as newer versions are released up to Java 31.

This is the first lecture of Clean Spring, a lecture series designed to allow a hypothetical startup development team to experience, in a manner similar to actual work processes, the process of developing quickly, stably, flexibly, and with good maintainability by incrementally following Clean Code and Spring development principles. By utilizing Domain Model Pattern and Hexagonal Architecture, you can acquire necessary skills and development strategies in the domain-centric initial development phase.

Starting with java.io, you can learn how to develop high-performance input/output systems based on NIO and NIO.2. Most importantly, the moment you master file I/O, we'll enable you to master high-performance server development as a bonus!

Anyone who was confused about many concepts while studying Spring Boot Everyone who wanted to study about Spring Boot

It covers just two things properly: object-oriented programming and the JVM! Plus, it throws in linked-list-based linear data structures.

Are you lost while learning web development? I'll help you find your own way. Even if you're not from a computer science background, you can understand how web service architecture works through a short 1-hour lecture.

IntelliJ IDEA Conf 2025는 JetBrains에서 매년 주최하는 온라인 컨퍼런스로, Java와 Kotlin 개발 개발자를 위한 유익한 세션을 제공합니다. AI 도입, Spring Boot, Gradle, Kafka, 데이터베이스 관리 등 다양한 주제를 다루며, 클라우드 통합, 보안 코딩, 개발자 성능 향상 및 고급 개발 기법에 대한 인사이트도 공유됩니다. 이 컨퍼런스는 전문 개발자는 물론 초보 개발자도 참여가능하며, 더 빠르게 고품질의 코드를 작성할 수 있는 생산성 팁과 함께 최신 기술을 접할 수 있는 기회를 제공합니다.

This course includes both server (Java+Springboot) and front-end (React, ReactNative, Flutter, Android, iOS) development. Experience building a full-stack bulletin board with this course.

API server built with Spring Boot (Spring Boot ver3.4.x) and React 19 (with TypeScript) Completing the integration project! Producing the entire portfolio writing bootcamp as lectures.

Experience the power of Type Safe SQL with jOOQ!

Full 40-hour Spring-based Full-stack Web Development Completely Free Course

Learn Springboot + Flutter RestAPI Board Creation Faster Than Anyone Develop a CRUD server with Springboot and create your own board with Flutter!

Learn the deployment process in the following order: Manually deploy Spring Boot with Chicken Combo value -> Deploy with Docker -> Github Action CI/CD.

Handling media (video, audio) on the web is now easier than ever! Learn the MediaStream API and WebRTC by following along step by step.

I've created a beginner-friendly and practical 'Introduction to Elasticsearch' course!

This course proceeds in stages, similar to the actual work, by learning and applying the necessary knowledge while configuring the infrastructure.

Build a Springboot + iOS RestAPI Bulletin Board: Learn Faster than Anyone Develop a CRUD server with Springboot and create your own bulletin board with iOS!

In this course, rather than covering the theory directly, you will learn how to use Redis effectively in your code through hands-on practice.

Learn how to save, modify, delete, and query data in a database. Anyone, regardless of major, can easily follow along in just 30 minutes.