I'm listening to Younghan's 4th lecture, and I don't need to say much. 
In my opinion, there is no lecture as good as this among the spring lectures.

juhobbang

You can understand and master all the web technologies required to develop web applications from the basics. You can understand the core principles and structure of Spring MVC and grow into a more in-depth backend developer.

Spring MVC Part 1 - Core technologies for backend web development

No need to say more, it seems like the hard work paid off. Thank you very much, Joo Ho Bbang^^

입문

초급

중급이상

모델 뷰 컨트롤러

스프링

Spring

Introduction

Understanding Web Applications

Servlet

Servlet, JSP, MVC Pattern

Creating an MVC Framework

Spring MVC - Architecture

Spring MVC - Basic Features

Spring MVC - Making a Web Page