Dedicated to sharing programmer-architect skills—Java backend, system, microservice, and distributed architectures—to help you become a senior architect.
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.
A recent production incident revealed duplicate order IDs caused by a flawed custom Snowflake algorithm; this article reviews the standard Snowflake structure, dissects the custom implementation’s critical mistakes—short timestamp, IP‑based business ID, zeroed worker and data‑center IDs—and offers best‑practice recommendations, including using mature libraries and proper worker‑ID strategies.
This comprehensive guide explores Kafka’s core value as a message queue, explains producers, consumers, topics, partitions, and replication, dives into cluster architecture, zero‑copy I/O, resource planning for disks, memory, CPU and network, and provides practical configuration, consumer‑group management, and operational tooling tips for building high‑throughput, highly available Kafka deployments.
This article outlines a comprehensive backend architecture for flash‑sale (秒杀) systems, covering traffic control, Nginx and CDN setup, gateway rate‑limiting, Redis caching and distributed locks, message‑queue throttling, async order processing, hotspot isolation, and security measures to handle massive concurrent requests.
This article explains how to invoke external services from a Spring Boot application using three approaches—raw HttpClient, Spring's RestTemplate, and Feign—providing code examples, configuration steps, and tips for handling headers and tokens.
This article explains how to treat prompt engineering as a systematic, experiment‑driven practice—distinguishing it from blind prompting—by defining problems, building demo sets, crafting and testing prompt candidates, evaluating accuracy versus cost, and establishing verification loops for reliable large language model applications.
Facing a 50‑million‑row financial transaction table that grew 600,000 rows each month, the team designed a sharding solution using sharding‑jdbc, tackled multi‑datasource transaction and pagination challenges, and executed a staged migration that kept the system stable while eliminating MySQL performance bottlenecks.
