SpringApplication.run() Deep Dive | Internal Working Explained Step by Step #shortsfeed #shorts

In this video, we will do a deep dive into SpringApplication.run() and understand what actually happens behind the scenes when a Spring Boot application starts. Most developers just use this line, but very few understand its internal working. In this session, we break it down step by step — from application startup to context initialization and bean creation. 🔥 Topics Covered: What SpringApplication.run() actually does Internal lifecycle of Spring Boot prepareContext vs refreshContext ApplicationContext initialization Bean creation & dependency injection Embedded server startup (Tomcat) This video is perfect for: ✔ Java Backend Developers ✔ Spring Boot Beginners to Advanced ✔ Interview Preparation