Dedicated to sharing programmer-architect skills—Java backend, system, microservice, and distributed architectures—to help you become a senior architect.
This article explains how Lombok’s generation of getter/setter methods for fields whose second character is uppercase can cause MyBatis to map properties incorrectly, leading to null values, and also examines why the @Accessor(chain=true) annotation breaks EasyExcel’s reflection, offering concrete solutions for each case.
The article examines the reasons behind a company's rule to use POST for every API, compares GET and POST characteristics, shares community opinions, discusses the trade‑offs of strict RESTful enforcement, and suggests when such a convention is appropriate.
Qiwen File is a completely open‑source online file manager built with Spring Boot and Vue CLI, offering hierarchical directory handling, multiple view modes, sharing, and online preview/edit features, while providing its source code under the MIT license for further customization.
PocketBase is a lightweight Go‑based open‑source backend‑as‑a‑service that bundles an embedded SQLite database, authentication, file storage, real‑time APIs and an admin UI into a single executable, allowing developers to launch a full backend in minutes with simple commands or a few lines of Go code.
This article explains Java's built‑in Service Provider Interface (SPI) mechanism, demonstrates how to create and load SPI implementations with ServiceLoader, and then shows how Spring extends SPI using spring.factories with detailed code examples and source‑code analysis.
This article explains the concepts, purposes, and mechanisms of TCP keepalive and HTTP keepalive, detailing kernel parameters, timing intervals, and how they prevent half‑open connections, along with practical commands, configuration tips for servers like Nginx and Gunicorn, and the interaction between the two layers.
This article outlines key API security mechanisms—including encryption, signing, timestamp validation, AppId authentication, rate limiting, blacklist control, and data validation—and provides practical Java code examples and implementation guidelines for each technique.
This guide presents 22 practical best‑practice rules for designing consistent, resource‑oriented RESTful APIs, covering naming conventions, URL structure, parameter casing, versioning, monitoring endpoints, security measures, pagination, field selection, CORS, error handling, and more, with concrete code examples.
This article explains why rate limiting is essential for both physical venues and online services, outlines common throttling strategies such as circuit breaking, service degradation, delay processing, and privilege handling, compares caching, degradation, and limiting, and details popular algorithms and concrete code examples for implementing rate limiting in Java and Nginx/Lua environments.
This article explains eight common software architecture patterns—from single‑database apps to microservices, caching, sharding, elastic scaling and multi‑datacenter deployment—detailing their designs, typical use cases, advantages, drawbacks, and practical implementation steps.
