Spring Boot @Lazy Annotation Explained | Improve Startup Time | 2026

Spring Boot @Lazy Annotation With Practical Example | | Spring Framework | Java | 2026

Stop wasting resources! In this video, we dive deep into the Spring @Lazy annotation to understand how it can drastically improve your application’s startup performance by deferring bean initialization.

What You’ll Learn:
✅ What is @Lazy Annotation
✅ Where to use @Lazy at the Class and Method level.
✅ How to use @Lazy Annotation
✅ What is Eager vs. Lazy initialization?
✅ Use cases of @Lazy Annotation
✅ Complete Project Demonstration

Resources :
🔗 https://github.com/thinkconstructive/annotations-demo
🔗 https://docs.spring.io/spring-framework/docs/current/javadoc-api/org/springframework/context/annotation/Lazy.html

Chapters 📚
00:00 Visual Representation of Eager and Lazy in Spring Boot Application
00:10 Session Overview
00:43 What is @Lazy Annotation in Spring Framework
01:53 Where to use @Lazy Annotation in Spring Boot Application
02:17 Differences between Eager and Lazy initialisation in Spring Framework
04:22 Use Cases of @Lazy Annotation in Spring Framework
05:54 @Lazy Annotation in Java Spring Boot Project Example
14:32 Test Eager initialisation of Beans in Java Spring Boot Project Example (Without @Lazy)
18:10 Test Lazy initialisation of Beans in Java Spring Boot Project Example (With @Lazy)
20:10 Outro

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Don’t just use Spring—understand it! Watch now and level up your #SpringBoot development skills.

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