Focus on Java-related technologies: SSM, Spring ecosystem, microservices, MySQL, MyCat, clustering, distributed systems, middleware, Linux, networking, multithreading. Occasionally cover DevOps tools like Jenkins, Nexus, Docker, and ELK. Also share technical insights from time to time, committed to Java full-stack development!
WeKnora is an open‑source, LLM‑driven document understanding and semantic search framework that extracts structured content from PDFs, Word files, and images, builds a unified knowledge graph, and enables natural‑language queries through a modular RAG architecture with flexible deployment options.
Maven 4 introduces a revamped POM model (4.1.0), separates build and consumer POMs to eliminate unnecessary metadata, adds explicit artifact types for classpath and module jars, renames modules to subprojects, adopts a tree‑based lifecycle for true parallel builds, and provides powerful configuration and upgrade tools, all aimed at modern Java projects.
A recent production incident revealed duplicate order IDs caused by a flawed custom Snowflake implementation; the article reviews the standard Snowflake structure, pinpoints design mistakes such as a 31‑bit timestamp, IP‑based business IDs, and zeroed worker IDs, and offers concrete recommendations and proven library alternatives for safe distributed ID generation.
This guide details a step‑by‑step strategy for optimizing Druid in Spring Boot, covering environment setup, core pool parameters, monitoring, security hardening, leak detection, dynamic tuning, and common pitfalls to achieve high‑performance, stable, and secure database connections in production.
The article explains the limitations of Spring MVC's blocking model, introduces Spring WebFlux's reactive, asynchronous, non‑blocking architecture, compares annotation and functional programming models, details core components and request flow, and provides guidance on when and how to adopt WebFlux for high‑concurrency I/O‑intensive applications.
Using UUIDs as primary keys in MySQL can dramatically degrade performance on large tables due to larger index size, random inserts causing index splits, slower comparisons, and costly index refreshes on updates, but the impact can be mitigated with ordered UUIDs, binary storage, hybrid keys, or table partitioning.
This guide reviews the most popular AI code‑generation tools—including GitHub Copilot, Amazon CodeWhisperer, Tabnine, and domestic alternatives—detailing their features, ideal use cases, installation steps, advantages, caveats, practical results, and recommended tool combinations for individual developers, teams, and cloud projects.
This guide walks developers through the fundamentals of database indexes, explaining why they matter, how they work, common pitfalls, and best‑practice design tips with concrete SQL examples and visual illustrations.
This guide explains how MySQL InnoDB full‑text search works, covering inverted indexes, index creation, query syntax for natural language, boolean, and query‑expansion modes, relevance calculation, and index maintenance.
This article explains how to design a high‑concurrency ticket‑spike service that can handle millions of requests by using multi‑layer load balancing, Nginx weighted round‑robin, local stock caching, and atomic Redis operations, complete with Go code examples and performance testing.
