Spring WebFlux is a reactive web framework that is part of the Spring Framework 5.0 and above. It is designed to build asynchronous, non-blocking, and event-driven web applications by leveraging reactive programming principles. Unlike the traditional Spring Web MVC framework, which is built on the Servlet API and is designed for synchronous processing, Spring WebFlux enables the development of applications that can handle streaming data and large numbers of concurrent requests efficiently.
Spring WebFlux is fully non-blocking, supports Reactive Streams back pressure, and can run on servers such as Netty, Undertow, and Servlet containers. This means that it can handle streaming and server-sent events and can work in environments where traditional Servlet-based stacks are not optimal. The framework provides a choice between an annotation-based programming model, which is consistent with Spring MVC, and a functional, lambda-based model for defining web endpoints.
The introduction of Spring WebFlux represents a step towards embracing a reactive programming model within the Spring ecosystem. It is particularly suitable for applications that require scalable, high-concurrency handling without tying up server resources, making it a good fit for applications with IO-intensive workloads rather than CPU-bound tasks. Spring WebFlux is bui...
