Spring Framework Introduction
Last updated: September 28, 2023
Mocking is an essential part of unit testing, and the Mockito library makes it easy to write clean and intuitive unit tests for your Java code.
Get started with mocking and improve your application tests using our Mockito guide:
Handling concurrency in an application can be a tricky process with many potential pitfalls. A solid grasp of the fundamentals will go a long way to help minimize these issues.
Get started with understanding multi-threaded applications with our Java Concurrency guide:
Spring 5 added support for reactive programming with the Spring WebFlux module, which has been improved upon ever since. Get started with the Reactor project basics and reactive programming in Spring Boot:
Since its introduction in Java 8, the Stream API has become a staple of Java development. The basic operations like iterating, filtering, mapping sequences of elements are deceptively simple to use.
But these can also be overused and fall into some common pitfalls.
To get a better understanding on how Streams work and how to combine them with other language features, check out our guide to Java Streams:
Explore Spring Boot 3 and Spring 6 in-depth through building a full REST API with the framework:
Yes, Spring Security can be complex, from the more advanced functionality within the Core to the deep OAuth support in the framework.
I built the security material as two full courses - Core and OAuth, to get practical with these more complex scenarios. We explore when and how to use each feature and code through it on the backing project.
You can explore the course here:
Spring Data JPA is a great way to handle the complexity of JPA with the powerful simplicity of Spring Boot.
Get started with Spring Data JPA through the guided reference course:
Refactor Java code safely — and automatically — with OpenRewrite.
Refactoring big codebases by hand is slow, risky, and easy to put off. That’s where OpenRewrite comes in. The open-source framework for large-scale, automated code transformations helps teams modernize safely and consistently.
Each month, the creators and maintainers of OpenRewrite at Moderne run live, hands-on training sessions — one for newcomers and one for experienced users. You’ll see how recipes work, how to apply them across projects, and how to modernize code with confidence.
Join the next session, bring your questions, and learn how to automate the kind of work that usually eats your sprint time.
The Spring Framework started as a Dependency-Injection container and grew into a full, rich and mature ecosystem.
If you’re just starting out with Spring – here’s where you go get started:
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The Basics of Spring
- Spring Boot Tutorial – Bootstrap a Simple Application
- Spring Core Annotations
- Spring Bean Annotations
- Constructor Dependency Injection in Spring
- Guide to Spring @Autowired
- Spring NoSuchBeanDefinitionException
- Spring Profiles
- Properties with Spring and Spring Boot
- Instantiating Multiple Beans of the Same Class with Spring Annotations
- Spring Bean Names
- Spring @Component Annotation
- Spring Dependency Injection Series
- Unsatisfied Dependency in Spring
- Introduction to Spring AOP
- A Quick Guide to Spring @Value
- Quick Guide to Spring Bean Scopes
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Spring Web
- Spring RequestMapping
- The Spring @Controller and @RestController Annotations
- Spring’s RequestBody and ResponseBody Annotations
- Spring MVC Tutorial
- Getting Started with Forms in Spring MVC
- Model, ModelMap, and ModelAndView in Spring MVC
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Spring Security in Reactive Applications
- Spring Security for Reactive Applications
- Spring Webflux and CORS
- Spring Security OAuth Login with WebFlux
- Spring WebClient and OAuth2 Support
- Concurrency in Spring WebFlux
- Spring WebClient vs. RestTemplate
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Spring for Persistence
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