A tinkering programmer and author of "Spring Cloud Microservices in Action"
This article traces the evolution of databases from early theoretical research through commercial, open‑source, and cloud eras, highlights China's rapid rise in the field, and explains why databases remain the indispensable foundation of modern software.
Learn how to simplify repetitive error-handling code in Spring Boot by creating a custom @ErrorHandler annotation that leverages Spring AOP to automatically log exceptions, with step-by-step instructions, required dependencies, annotation definition, aspect implementation, and usage examples.
Redis has introduced a multithreaded query engine that dramatically boosts throughput and lowers latency for vector searches, enabling scalable, real‑time retrieval‑augmented generation (RAG) workloads while preserving the low‑latency performance of its core in‑memory database.
This article recounts a developer's journey from a fresh graduate to a senior backend engineer, detailing two real‑world incidents—a pseudo‑memory‑leak in a C++ service and a uint overflow that caused traffic bursts—showing the analysis steps, code fixes, and lessons learned for reliable backend development.
Spring AI has added full support for OpenAI's structured output feature, enabling developers to define JSON schemas for AI responses, with example code showing how to configure prompts, response formats, and BeanOutputConverter for seamless JSON-to-Java bean conversion, plus Spring Boot starter configuration.
The author reflects on reading Mark’s ‘Clean Code’ sequel, sharing how seemingly ‘old‑school’ heuristics—like backup configs, commit‑message discipline, and the rubber‑duck method—remain vital in modern software development, despite flashy tools, and urges readers to embrace practical, experience‑driven practices.
IntelliJ IDEA 2024.2 introduces a suite of developer‑focused enhancements—including instant Spring Data JPA queries, cron expression auto‑completion, GraalJS‑powered HTTP client, advanced log management, real‑time performance charts, and rich data‑format visualizers—designed to boost productivity for Java and Kotlin programmers.
This guide explains how to integrate JSON Schema validation into a Spring Boot application, covering dependency setup, schema definition, bean configuration, service implementation, controller handling, and testing with curl examples to ensure JSON payloads conform to the defined rules.
A recent Azul survey of 663 Java professionals shows that 86% of Oracle Java users are migrating to OpenJDK due to high costs, licensing uncertainty, audit risks, and a preference for open‑source alternatives, with most migrations completing within a year and delivering significant cost savings.
Meta’s latest open‑source Llama 3.1 model, available in 8B, 70B, and 405B sizes, is evaluated against top competitors and can be easily run locally on the 8B version using Ollama with a simple step‑by‑step guide.
