Upgrading a Spring Boot application from 2.1.8 to 2.5.6 can break existing CORS configurations, but adding a WebMvcConfigurer bean with allowedOriginPatterns resolves the new cross‑origin restrictions, as demonstrated with concrete code examples.
After migrating a Spring Boot application from 2.x to 3.x, the “No static resource” error often appears because of Jakarta EE package changes and altered static‑resource configuration, and this guide walks you through the root causes, configuration updates, code changes, and practical debugging steps to resolve it.
This article introduces a Spring‑based library that reduces multi‑step download, compression, and response handling to a single annotation, supporting files, HTTP URLs, strings, collections and custom objects across WebMvc and WebFlux with reactive programming.
This article provides a comprehensive guide to integrating WebSocket in Spring Boot, covering Javax, WebMVC, WebFlux implementations with detailed server and client configurations, as well as brief introductions to Java‑WebSocket, SocketIO, and Netty libraries, including full code examples.
This article compares six WebSocket integration approaches—Javax, WebMVC, WebFlux, Java-WebSocket, SocketIO, and Netty—showing how to configure both server and client sides in Spring Boot, with step‑by‑step code examples, key annotations, and practical tips for each method.
This article provides a comprehensive guide to integrating WebSocket in Spring Boot, covering the native Javax API, Spring WebMVC and WebFlux approaches, as well as popular third‑party libraries such as Java‑WebSocket, SocketIO and Netty, with detailed configuration steps, code examples, and practical tips.
This article provides a comprehensive guide on implementing WebSocket clusters in Spring Boot, covering three main integration methods—Javax, WebMVC, and WebFlux—including server‑side and client‑side configurations, code examples, and practical tips for each approach.
This article reviews several ways to integrate WebSocket with Spring Boot, focusing on the three mainstream approaches—Javax, WebMVC, and WebFlux—by providing server and client configurations, code examples, and practical tips such as handling ping/pong, handshake interceptors, and reactive streams.
This article provides a comprehensive guide on implementing WebSocket in Spring Boot, covering three native approaches (Javax, WebMVC, WebFlux) with server‑ and client‑side configurations, and briefly introducing four third‑party libraries (Java‑WebSocket, SocketIO, Netty) for advanced use cases.
This article provides a comprehensive guide to implementing WebSocket in Spring Boot, covering server and client configurations for Javax, WebMVC, and WebFlux, along with code examples, deployment tips, and insights into alternative libraries such as Java-WebSocket, SocketIO, and Netty.
This guide explains how Spring Boot 2.7.10 serves static files, how to customize resource locations and URL patterns, configure WebJars, enable cache‑busting, and reveals the underlying MVC components that handle static resource requests.
This guide explains why Spring Boot's automatic parameter binding can fail, compares deprecated WebMvcConfigurerAdapter, WebMvcConfigurationSupport, and @EnableWebMvc approaches, and shows how to safely customize MVC settings using the WebMvcConfigurer interface.
A new developer refactored a Play‑based API to Spring Boot, encountered severe throughput loss due to implicit suffix path matching, profiled the bottleneck with jvisualvm and wrk, and restored performance by declaring request‑mapping suffixes explicitly, boosting QPS from under 1k to over 9k.
