Dependency Injection - Spring Framework

Dependency Injection in Spring Framework

A Comprehensive Guide

Dependency Injection (DI) is a fundamental design pattern and one of the core concepts in the Spring Framework. It is a technique where an object's dependencies are provided (injected) by an external entity rather than the object creating them itself. This promotes loose coupling, easier testing, and better code maintainability.

Spring's IoC (Inversion of Control) container is responsible for managing the lifecycle of objects (beans) and injecting their dependencies. The container takes control of object creation and dependency management, inverting the traditional flow of control.

This Guide explains DI thoroughly. By following this guide, you'll be able to harness the full power of Spring's dependency injection capabilities.