天工 TianGong · AIGC 创作者开放平台后端（开放 API + 按调用积分计费）。Spring Boot 3 微服务：幂等 / 预扣退款 / Outbox / 熔断限流 / 防重放签名，含全套中文工程文档与可执行验收

Spring Boot starter that shows what your Spring AI app does under the hood: every LLM request and response, tool and MCP calls, advisors, tokens and timing, live in a local web UI.

Stock Exchange Simulator, which will update the prices of the stocks based on the transactions occuring in the Game Lobby

Inventory & GST billing for kirana stores and pharmacies. Built with Java, Spring Boot, React, and MySQL/H2. Features FEFO stock management, GST invoices, JWT authentication, expiry alerts, and sales reports.

Plataforma de gestão do ciclo de vida de demandas com IA assistiva — Spring Boot + Angular, Jira PMO e GitLab/GitHub

图书管理系统（Java 17 + Spring Boot 3）：管理员端 + 读者端双端，JdbcTemplate + MySQL 8，含 JWT REST API 与 GitHub Actions CI

Mobile-money style payments API: wallets, double-entry ledger, idempotent transfers, JWT auth - Java 21 + Spring Boot 3.5

A horizontally scalable, distributed data ingestion pipeline featuring a Java Spring Boot core coordinator, RabbitMQ event broker, and multi-node Python worker clusters containerized via Docker.

Indexes a Java Spring codebase into a context graph (code, OpenAPI specs, docs, config) and serves it to AI agents over MCP: what to mock, generated DTO fields, endpoints, existing tests, and the provider APIs a service calls, for unit and Specmatic contract tests.

feature toggles for Java, without the if-else

A comprehensive student and IP management platform built with a Java Spring Boot backend and a React frontend.

GNSS 定位数据处理控制台：SPP/PPK 解算、轨迹三维可视化与精度分析（Vue 3 + Cesium + Spring Boot）

Centralized Agent2Agent (A2A) Discovery Hub & Registry built with Java 21, Spring Boot 3.4, LangChain4j, PostgreSQL pgvector & Vue 3

Spring Boot + Vue 超市管理系统：脱敏前后端源码与数据库结构

Java 21 / Spring Boot operations agent with evidence-grounded diagnosis, human approval and transactional simulated runbooks.

Java 原生 LLM 可观测与评测：同源 traceId 贯通、国产模型中文评测集、CI 回归门禁。不是 Langfuse 的替代品。

HMS — A hospital management system for managing patients, doctors, schedules, and appointments. Read the README for more details.

AI Incident Diagnosis Agent — an LLM-powered agent that turns Prometheus alerts into root-cause analysis with grounded, executable evidence. Java · Spring Boot · tool calling · RAG

🚗 SpeedyRental — Application web full-stack de gestion de location de véhicules (Spring Boot 3, Thymeleaf, MySQL) : réservations, clients, véhicules, paiements, promotions & tableau de bord décisionnel. PFA — Kawtar Boughal.

A portfolio you walk through like an episode of Serial Experiments Lain — live multiplayer Wired on Spring Boot WebSocket + canvas

星屿支付：固定金额个人收款系统。Spring Boot 2.3 + Thymeleaf + Vue 3，前后端分离；支付宝/微信固定金额二维码、邮件审核、OpenAPI、PWA 与安全响应头；附宝塔面板部署教程、故障排查手册与 MIT 许可。

Amazon-style shop built QA-first: 1,489 automated tests, 18 CI quality gates, 97% coverage, 89% mutation score, 129 traced requirements.

RAG-based Personal Finance Assistant

Real-time ride-hailing & on-demand delivery platform — microservices with Spring Boot, PostgreSQL, Redis (GEO) and Apache Kafka. Driver matching, live GPS tracking via WebSocket, surge pricing, trip state machine, payments & driver wallet ledger.

Security-focused AI backend for legal intake: layered guardrails, staged cost accounting, failure handling, and an operator dashboard. Built with Spring Boot and React.

基于若依 RuoYi-Vue 改造的基础后台管理系统（Spring Boot + Vue 3 + Element Plus + PostgreSQL），多分支兼容 Spring Boot 2/3/4 与 JavaScript/TypeScript 前端，内置 SQL 修复与锁屏解锁功能，可作为业务系统脚手架。

URL shortener with click analytics, Redis caching and rate limiting (Spring Boot, PostgreSQL, Docker)

Durable execution engine for AI agent workflows — replayable, resumable, budget-aware. Java 21 + Spring Boot 3.

社区点餐小程序开源：Uni-app + SpringBoot + MySQL，在线点餐、菜单推荐、订单管理，附开发文档与 PlantUML 图源