// the find
nageoffer/12306
🔥 官方推荐 🔥 大学春招、秋招、应届项目，SpringBoot3 + Java17 + SpringCloud Alibaba + Vue3 等技术架构，完成高仿铁路 12306 用户 + 抢票 + 订单 + 支付服务，帮助学生主打就业的项目。
A full clone of China's 12306 railway ticketing system — membership, ticket search, seat selection, orders, payment, gateway — built with SpringBoot3/JDK17/SpringCloud Alibaba on the backend and Vue3 on the frontend. It's explicitly aimed at CS students prepping for campus recruiting who want a distributed-systems project with real complexity to put on a resume and talk through in interviews.
The docs don't just show code, they argue against common wrong answers — e.g. why Elasticsearch is the wrong tool for the ticket search path under heavy concurrency (favors Redis-based in-memory assembly instead), and why the popular 'cache null values + bloom filter' fix for cache penetration has holes. The seat allocation logic (same-carriage adjacent seats → same-carriage non-adjacent → cross-carriage) is a genuinely non-trivial scheduling problem worth reading. It ships two runnable topologies (single aggregated service vs. full microservices) so you can study the design without standing up eight services just to click through it. Sharding strategy, distributed ID generation, and read-request-fanout-on-multi-key-login are covered as real production problems, not toy examples.
Everything — README, docs, code comments — is Chinese-only; there's no English on-ramp, which is a real barrier given how broadly applicable the distributed-systems content is. The README spends as much space on WeChat groups, a paid course upsell, and a plug for the author's separate AI project as it does on the architecture itself. The stated audience is resume-building for job interviews specifically (there's a literal 'how to put this project on your resume' doc and a collected interview-questions doc), so some design choices read as interview-answer-shaped rather than production-necessity-shaped. The frontend is explicitly called out as still in progress ('目前前端系统还在开发中'), so parts of the demo you'd want to click through aren't finished.