I felt like I had been using Spring Boot without truly understanding it. Although I had learned various parts here and there, I struggled to connect them all together. The examples of the underlying principles, combined with the practical code and explanations, have significantly deepened my understanding.

aoooec

This is a backend development introductory course where you learn through understanding rather than memorization, and experience rather than theory.

Instead of answering the interview question "What is JPA?" by reciting a Googled definition,
this course enables you to give an experience-based answer that starts with "I've been through JdbcTemplate hell..."

You'll directly experience the process of reducing pure Java ServerSocket from 30 lines to Spring Boot's 7 lines,
and understand with your whole body "why we use frameworks."

After 6 sessions, you'll have in your hands a working portfolio: a Todo List REST API implemented with Spring Boot + JPA.

dingcodingco

2026 새해 복 마🐴니 할인

[Lv1] Spring Boot You Can 'Explain' in Interviews - Backend Development Answering with Experience

실습 중심

백엔드

backend basics

백엔드이해하기

신입백엔드

입문

초급

중급이상

스프링

Spring

스프링부트

Spring Boot

자바 퍼시스턴스 API

hibernate

[Session 1] Web Backend Fundamentals - From the Internet to JSON

[Lesson 2] My First Web Server - From Hello World to API

[Session 3] Database Connection - From Memory to JPA

[Session 4] Anatomy of Spring's Magic - From Proxy to DI

[Session 5] Layer Separation and Transactions - Completing a Secure Backend

[Session 6] Finishing Like a Pro - From Exception Handling to Real-world Projects