Practical internet development experience, tech sharing, knowledge consolidation, and forward-thinking insights.
This article details the implementation of Spring StateMachine for refactoring a content platform question bank system, addressing complex state management and coupling issues through state machine patterns.
This article explains how to use the Java Poi‑tl library to generate Word .docx documents from templates, covering solution comparison, API usage, code examples for text, images, tables, and block structures, and provides a quick start guide.
The article describes how a rapidly growing development team built a one‑click, cloud‑native platform that automates the provisioning, configuration, Docker image creation, and Kubernetes deployment of diverse test environments, addressing challenges such as heterogeneous tech stacks, middleware variety, and configuration inconsistencies.
This article explains how to use Android ConstraintLayout helper widgets such as Flow, Layer, ConstraintHelper, and ImageFilterView, covering their properties, wrap modes, XML configuration, Kotlin animation code, and runtime adjustments with SeekBar to create dynamic UI layouts.
This article explores the features and benefits of ConstraintLayout in Android, including its flexibility, performance improvements, and practical usage examples for creating complex layouts efficiently.
This article reviews the selection of a 2D physics engine for mechanics experiments, compares Box2D and Nape, details eight test scenarios highlighting precision, constraint, mass‑density, friction, and buoyancy problems, and proposes practical solutions to improve simulation accuracy and usability.
This article compares the table‑matrix method and the list method for circuit analysis, explains why the list method was selected due to its simpler equation formulation despite larger matrix size, and cites references that discuss various other techniques such as loop‑current and node‑voltage methods.
This article introduces Alibaba Sentinel, an open‑source flow‑control framework for distributed services, covering Maven integration, dashboard setup, configuration of flow, degrade and hotspot rules, the @SentinelResource annotation, XCloud Sentinel starter usage, and a deep dive into its slot‑chain architecture and sliding‑window algorithm.
This article introduces Node.js by recounting its creator Ryan Dahl's background, explaining its core characteristics of single‑threaded, event‑driven, non‑blocking I/O architecture, describing suitable use cases, and reviewing basic code examples and popular frameworks such as Express, Koa, Nest, and Egg.
This article summarizes the mobile‑side architecture, module decomposition, storyline and node flow design, playback performance optimizations such as second‑play and node pre‑loading, and the SDK‑based refactoring of New Oriental's interactive video system, highlighting its extensibility and future directions.
