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SpringApplication

5 articles · Page 1 of 1
Java Tech Workshop
Java Tech Workshop
Apr 13, 2026 · Backend Development

Understanding SpringBoot Startup: From main() to Web Container Initialization

This article walks through the complete SpringBoot startup sequence, starting with the main method annotated with @SpringBootApplication, detailing the creation of SpringApplication, environment preparation, context initialization, bean loading, embedded web server setup, event publishing, and final readiness, with code examples and common pitfalls.

EmbeddedTomcatEventDrivenSpringApplication
0 likes · 18 min read
Understanding SpringBoot Startup: From main() to Web Container Initialization
java1234
java1234
Jan 27, 2026 · Backend Development

Why Can a Spring Boot JAR Run Directly?

Spring Boot packages all dependencies and an embedded web server into a single executable JAR, allowing developers to launch the application with a simple "java -jar" command without external configuration or server deployment.

Embedded ServerJavaSpring Boot
0 likes · 4 min read
Why Can a Spring Boot JAR Run Directly?
Shepherd Advanced Notes
Shepherd Advanced Notes
Oct 24, 2024 · Backend Development

What Exactly Happens During Spring Boot Startup? A Deep Dive

This article walks through the Spring Boot startup sequence, detailing how the @SpringBootApplication entry point creates a SpringApplication instance, prepares the environment, builds and refreshes the IoC container, runs ApplicationRunner/CommandLineRunner callbacks, and finally publishes the ApplicationReadyEvent.

ApplicationContextConfigurationIOC Container
0 likes · 10 min read
What Exactly Happens During Spring Boot Startup? A Deep Dive
Code Ape Tech Column
Code Ape Tech Column
Nov 19, 2020 · Backend Development

Demystifying Spring Boot Startup: A Deep Dive into SpringApplication.run()

This article provides a step‑by‑step technical analysis of Spring Boot's startup process, breaking down the creation of SpringApplication, the configuration of application type, initializers, listeners, and the eight phases executed by the run() method, complete with code snippets and diagrams.

Backend DevelopmentJavaSpring Boot
0 likes · 16 min read
Demystifying Spring Boot Startup: A Deep Dive into SpringApplication.run()
Architecture Digest
Architecture Digest
Nov 19, 2019 · Backend Development

Understanding the SpringApplication Startup Process in Spring Boot

This article explains how Spring Boot launches an application by creating an AnnotationConfigApplicationContext, registering annotation processors, loading the primary source class, and invoking ConfigurationClassPostProcessor during the refresh phase, with detailed code examples illustrating each step.

ApplicationContextConfigurationJava
0 likes · 8 min read
Understanding the SpringApplication Startup Process in Spring Boot