Guide to Spring @Autowired
1. Overview Starting with Spring 2.5, the framework introduced annotations-driven Dependency Injection. The main annotation of this feature is @Autowired. It allows Spring to resolve and inject collaborating beans […]
JAVA
Constructor Dependency Injection in Spring
1. Introduction Arguably one of the most important development principles of modern software design is Dependency Injection (DI) which quite naturally flows out of another critically important […]
Intro to Inversion of Control and Dependency Injection with Spring
1. Overview In this tutorial, we’ll introduce the concepts of IoC (Inversion of Control) and DI (Dependency Injection), as well as take a look at […]
Spring AMQP in Reactive Applications
1. Overview This tutorial shows how to create a simple Spring Boot Reactive Application that integrates with the RabbitMQ messaging server, a popular implementation of […]
Server-Sent Events in Spring
1. Overview In this tutorial, we’ll see how we can implement Server-Sent-Events-based APIs with Spring. Simply put, Server-Sent-Events, or SSE for short, is an HTTP […]
Spring Webflux with Kotlin
1. Overview In this tutorial, we demonstrate how to use the Spring WebFlux module using Kotlin programming language. We illustrate how to use the annotation-based […]
Logging a Reactive Sequence
1. Overview With the introduction of Spring WebFlux, we got another powerful tool to write reactive, non-blocking applications. While using this technology is now way easier than […]
Debugging Reactive Streams in Java
1. Overview Debugging reactive streams is probably one of the main challenges we’ll have to face once we start using these data structures. And having in mind […]
Spring Security OAuth Login with WebFlux
1. Overview Spring Security added OAuth support for WebFlux starting with the 5.1.x GA. We’ll discuss how to configure our WebFlux application to use OAuth2 Login […]
Spring Webflux and CORS
1. Overview In a previous post, we learned about Cross-Origin Resource Sharing (CORS) specification and how to use it within Spring. In this quick tutorial, we’ll set […]
Simultaneous Spring WebClient Calls
1. Overview Typically when making HTTP requests in our applications, we execute these calls sequentially. However, there are occasions when we might want to perform […]
Spring MVC Async vs Spring WebFlux
1. Introduction In this tutorial, we’ll explore the @Async annotation in Spring MVC, and then we’ll get familiar with Spring WebFlux. Our goal is to have a […]
How to Return 404 with Spring WebFlux
1. Overview With Spring Boot 2 and the new non-blocking server Netty, we don’t have the Servlet context API anymore, so let’s discuss the way […]
Handling Errors in Spring WebFlux
1. Overview In this tutorial, we’ll look at various strategies available for handling errors in a Spring WebFlux project while walking through a practical example. We’ll also […]
Static Content in Spring WebFlux
1. Overview Sometimes, we have to serve static content in our web applications. It might be an image, HTML, CSS, or a JavaScript file. In this […]
Guide to Spring 5 WebFlux
1. Overview Spring WebFlux is part of Spring 5 and provides reactive programming support for web applications. In this tutorial, we’ll be creating a small […]
The SpringJUnitConfig and SpringJUnitWebConfig Annotations in Spring 5
1. Introduction In this quick article, we’ll take a look at the new @SpringJUnitConfig and @SpringJUnitWebConfig annotations available in Spring 5. These annotations are a composition of JUnit 5 […]
Concurrent Test Execution in Spring 5
1. Introduction Starting with JUnit 4, tests can be run in parallel to gain speed for larger suites. The problem was concurrent test execution was not […]
Spring 5 Functional Bean Registration
1. Overview Spring 5 comes with support for functional bean registration in the application context. Simply put, this can be done through overloaded versions of a […]
Spring 5 Testing with @EnabledIf Annotation
1. Introduction In this quick article, we’ll discover the @EnabledIf and @DisabledIf annotations in Spring 5 using JUnit 5. Simply put, those annotations make it possible to disable/enable particular test […]
