Spring Boot’s Secret Weapon: ApplicationRunner vs CommandLineRunner

Опубликовано: 08 Май 2026
на канале: Backend Verse
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ApplicationRunner vs CommandLineRunner in Spring Boot 🚀 | Explained with Example

Welcome to Backend Verse! 🌿
In this video, we will master ApplicationRunner vs CommandLineRunner in Spring Boot with practical examples. 🚀

Ever wondered:
👉 What is CommandLineRunner and ApplicationRunner in Spring Boot?
👉 When and why should you use them?
👉 How to pass arguments and execute code at application startup?

That’s exactly what you’ll learn in this video! 🔥

📝 What You’ll Learn
📌 Difference between CommandLineRunner and ApplicationRunner
⚡ How to execute code at Spring Boot application startup
🔑 Passing arguments with CommandLineRunner and ApplicationRunner
🏷️ Real-world examples of initializing data or services at startup
💡 Best practices for startup execution in Spring Boot

🎯 Why Watch This Video?
✔️ Understand startup hooks in Spring Boot
✔️ Learn practical use-cases for both runners
✔️ Essential for building robust Spring Boot applications
✔️ Important concept for Spring Boot interviews

🔧 Tools & Technologies Used
Java 17
IntelliJ IDEA
Spring Boot
Gradle

Time Stamps

00:00 - Introduction & Topic Overview
01:07 - Command Line Runner
04:08 - Application Runner
08:31 - Migration Service Example

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🔗 GitHub Code
👉 https://github.com/backendverse/sprin...

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