Focusing on Java backend development, covering application architecture from top-tier internet companies (high availability, high performance, high stability), big data, machine learning, Java architecture, and other popular fields.
An online payment service failed when a newly added business logic forgot to commit its transaction, leaving a polluted connection that silently blocked subsequent orders, and the post‑mortem explains the root cause, debugging steps, code fixes, and preventive measures.
An experienced developer reflects on a Zhihu question about mandating POST for all interfaces, compares GET and POST characteristics, shares personal practices, presents community opinions on RESTful benefits and drawbacks, and describes his company's concrete API rule using a single POST/action endpoint with protobuf and gRPC integration.
The article explains how large‑model AI can quickly generate seemingly functional code but still lacks product logic, boundary awareness, and security, forcing engineers to act as “post‑processing engineers” who proofread, refactor, and polish AI‑generated artifacts into reliable, production‑ready software.
OpenClaw, an open‑source AI agent platform, surged in popularity, prompting Google to restrict its Antigravity services after abusive token usage, while its creator Peter Steinberger shares how AI‑driven coding, rapid prototyping, and security concerns shaped the project's explosive growth.
This article explains how to design and implement a robust monitoring solution for big‑data components running on Kubernetes using Prometheus, covering metric exposure methods, scrape configurations, alerting architecture, custom exporters, and practical deployment tips.
This article explores the fundamental architecture of a payment platform, detailing the separation of transaction and payment cores, the key modules such as transaction abstraction, payment orchestration, service governance, data consistency, asynchronous processing, performance testing, and practical strategies for stability and scalability.
This article introduces Easy Work, a Java workflow engine, explaining its core concepts, showing how to define work units, compose complex sequential, parallel, and conditional flows, use breakpoints to pause execution, and construct workflows via JSON with complete code examples and repository links.
IntelliJ IDEA 2026.1 EAP 3 finally changes file deletion to use the system recycle bin, fixing a six‑year‑old request, while also delivering a long list of Spring, Java, Kotlin, editor, AI, platform, and performance improvements that enhance developer productivity and reliability.
Upgrading to Spring Boot 4 brings Jackson 3, which introduces four major breaking changes—package reorganization, replacement of ObjectMapper with JsonMapper, a shift to ISO‑8601 date serialization, and the removal of checked exceptions—each explained with code examples, migration tips, and the rationale behind the design.
This article introduces PocketBase, an open‑source Go‑based Backend‑as‑a‑Service that bundles SQLite, authentication, file storage, real‑time sync and an admin UI into a single executable, and shows how to install, run, and embed it with code examples.
