Spring Start Here

Spring Quickly teaches you how to build professional-quality applications using Spring and Spring Boot. Author Laurentiu Spilca draws on a decade of Java experience to show you when, where, and why to use Spring in existing and brand-new apps. You'll start with the core components of the framework and then learn how features like Spring Boot simplify the tedious repetitive tasks you face in every project. When you're done, you'll be able to create Spring apps, secure it with authentication and authorization, and move on to the next exciting steps of your Spring journey.
what's inside
Manage application objects with Spring context
Implement data persistence using data sources and transactions
Implement data exchange between applications using REST services
Learn Spring Boot's convention-over-configuration approach
Write unit and integration tests for apps implemented with Spring