Dangbei Technology Team public account
This article explores the role of WebSocket in IoT, detailing its advantages over HTTP, comparing Java implementations, presenting a Netty‑based architecture for smart devices, and providing complete code examples for connection handling, authentication, and message processing to achieve real‑time communication.
Learn how to use Maven Archetype to create standardized project skeletons, customize templates, generate and share archetypes, and integrate them into IDEs, streamlining Java project initialization, reducing manual setup errors, and improving development efficiency across teams.
This article explains how to overcome performance bottlenecks in high‑concurrency Elasticsearch prefix searches by applying an edge‑ngram tokenizer, detailing the problem, configuration steps, analysis results, and query recommendations for faster, more accurate search experiences.
The COLA (Clean Object‑Oriented and Layered Architecture) framework replaces traditional monolithic MVC Service layers with a clear, multi‑layered structure—Adapter, Application, Domain, Infrastructure, and Client—enhancing code cohesion, reducing coupling, and improving maintainability, as illustrated through a detailed order‑creation example with refactored Java code.
This guide explains how to use Arthas for fast problem location in Java services, demonstrates watch commands, shows one‑click installation, and introduces the ArthasHotSwap plugin for hot code deployment while warning against production misuse.
