Dedicated to Java tech sharing and dissecting top open-source projects. Topics include Spring Boot, Spring Cloud, Docker, Kubernetes and more. Author’s GitHub project “mall” has 50K+ stars.
This guide demonstrates how MySQL Router 8.2 can automatically route read and write traffic using an InnoDB ReplicaSet, showing the minimal architecture, configuration steps, command examples, and the resulting read‑write split behavior without requiring application changes.
This article explains how a local HTML file can be served via Nginx, covering HTTP server basics, reverse‑proxy concepts, modular gateway features, configuration files, single‑thread design, multi‑worker processes, shared memory, proxy caching, master‑worker coordination, performance characteristics, and the single‑point‑of‑failure issue.
IntelliJ IDEA 2026.1 EAP 3 finally adds a recycle‑bin‑style file deletion, alongside dozens of enhancements for Spring, Java, Kotlin, editor experience, AI‑assisted completion, platform architecture, and performance, addressing long‑standing developer complaints and preparing the IDE for remote and AI‑driven workflows.
This article introduces the open‑source ERPNext system, outlines its key features, and provides step‑by‑step Docker commands for self‑hosting, enabling businesses to deploy a full‑featured, customizable ERP solution quickly and cost‑effectively.
Spring Boot 4 restructures the framework into independent auto‑configuration modules, reducing package bloat, speeding up startup, lowering memory usage, and providing more precise and flexible configuration options for developers migrating from earlier versions.
The article explores the common dilemma of choosing between Long and BigDecimal for monetary values, summarizing ten distinct community suggestions ranging from using Long, BigDecimal, String, Protobuf, custom types, leadership advice, AI assistance, to minimalist integer approaches.
This article explains the motivation behind Java generics, their benefits such as compile‑time type checking and reduced casting, and provides concrete examples including generic classes, interfaces, collections, inheritance, custom generic methods, and common pitfalls, illustrated with code snippets and diagrams.
The article examines a production OutOfMemoryError caused by MyBatis SQL construction, explains heap and metaspace exhaustion, analyzes MyBatis source code, reproduces the issue with JVM settings, and offers practical recommendations to prevent similar memory failures.
This article walks through converting a SpringBoot Maven project (mall‑tiny) to Gradle, explains Gradle’s key features and plugins, shows step‑by‑step setup, demonstrates dependency migration, compares build times with Maven, and provides a complete Gradle build script with reference links.
A performance comparison of SpringBoot 4.0 with virtual threads shows Tomcat achieving up to fifteen times higher QPS than Jetty, while startup times remain similar, and provides step‑by‑step instructions for building native Docker images and switching containers.
