Pro Spring 6 with Kotlin: An In-depth Guide to Using Kotlin APIs in Spring Framework 6

© The Author(s), under exclusive license to APress Media, LLC, part of Springer Nature 2023

P. Späth et al.Pro Spring 6 with Kotlinhttps://doi.org/10.1007/978-1-4842-9557-1_3

3. Introducing IoC and DI in Spring

Peter Späth¹  , Iuliana Cosmina², Rob Harrop³ and Chris Schaefer⁴

(1)

Leipzig, Sachsen, Germany

(2)

Edinburgh, UK

(3)

Reddish, UK

(4)

Venice, FL, USA

 

Chapters 1 and 2 have introduced you to the Spring world, explaining why this framework is necessary and why dependency injection is so cool and useful. In essence, Spring was built to make dependency injection easy. This software design pattern implies that dependent components delegate the dependency resolution to an external service that will take care of injecting the dependencies. The dependent ...