Dedicated to sharing programmer-architect skills—Java backend, system, microservice, and distributed architectures—to help you become a senior architect.
This article explains how aspect‑oriented programming (AOP) addresses cross‑cutting concerns by defining joinpoint interfaces, describing their design, illustrating Java examples, and comparing static and dynamic weaving techniques used in frameworks like Spring.
This tutorial walks through the OSI model, explains TCP three‑way handshake and four‑way termination, compares TCP and UDP, addresses common TCP tuning questions, describes long versus short socket connections with heartbeats, and shows how to design a custom protocol and implement a reusable Socket connection pool in Node.js.
This article explains why multi‑way search trees such as B‑trees, B+‑trees, B*‑trees and R‑trees are crucial for reducing disk I/O in large‑scale storage systems, covering their hardware background, structural definitions, height analysis, insertion and deletion algorithms, and practical examples with code and diagrams.
This article compares token pass‑through, unified gateway authentication, Feign, Dubbo, Spring Boot Web + Dubbo, regular auth modules, and Kubernetes integration, explaining their pros, cons, and implementation details to help you choose the most suitable internal‑call pattern for microservices.
This article explains the principles of Single Sign-On (SSO) and OAuth2.0, compares their workflows, outlines the four OAuth2.0 grant types, and clarifies terminology differences, providing clear step‑by‑step diagrams and practical examples.
Amid rising demand for open‑source, self‑controlled databases in China, major firms such as Tencent, Alibaba, and Huawei have built PostgreSQL‑based distributed, cloud‑native solutions, citing PostgreSQL’s richer data types, native sequence support, extensible ecosystem, advanced monitoring, robust replication, and true open‑source licensing as decisive advantages over MySQL.
This guide reviews essential IntelliJ IDEA plugins for Java/Spring developers, covering their core features, installation steps, configuration tips, performance trade‑offs, and visual enhancements, helping you streamline workflow, reduce boilerplate, and improve code navigation in 2025.
This article evaluates popular Java web frameworks by measuring performance, ecosystem maturity, learning curve, development efficiency, enterprise adoption and innovation, providing concrete data and practical recommendations for each framework’s strengths, use‑cases and drawbacks.
This guide explains how to build, run, and deploy the open‑source Arthas Tunnel tool—including Maven compilation, Docker and Helm deployment, UI startup, and integration with Spring Boot via the eden‑architect framework—while providing configuration examples and repository links for quick setup.
This article details a comprehensive redesign of a high‑traffic order system, covering the challenges of massive data volume, concurrency pressure, and poor scalability, and presenting a step‑by‑step solution that includes sharding strategy selection, database product comparison, unique ID generation, middleware choice, migration plan, risk mitigation, and FAQ handling.
