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

AI engineering from scratch for Java/Spring engineers: 19 phases, 114 lessons, runnable Java 21 code (autograd, transformers, RAG, agents, MCP, LoRA) plus a Spring Boot + Spring AI course web app.

Inventory backend with FEFO picking, ABC analysis and SAP Business One integration (Spring Boot, PostgreSQL, RabbitMQ, React)

Dynamic, criteria-based querying for Spring Data JPA: filters, joins, projections and paging at runtime. Spring Boot 3 & 4.

Terminal log viewer for Java application logs

A Kenyan-inspired civic issue reporting platform built with React, Spring Boot and PostgreSQL. Enables citizens to submit and track public service requests while administrators manage reports, monitor progress, and drive resolution.

Spring Boot adapter for Guard Core for the JVM

AI agent that codes on your laptop and runs your servers — Tauri desktop app + Spring Boot/Google ADK, hexagonal architecture

Full-stack travel platform: traveler, manager and admin workspaces; Java microservices, React, sandbox payments, Jenkins/SonarQube and Ansible.

SpringBootIn-depthWithHands-on

Local-first monitoring for websites, APIs and databases with a TV wall that changes shape by severity. Paste a URL or a SELECT; Orbit does the rest.

Spring Boot transaction ledger demonstrating durable idempotency, concurrency control, atomic transfers, and PostgreSQL-backed request replay.

Java 原生 LLM 网关：按成本/延迟/质量智能路由，Token 精确计量与配额熔断，进程内部署不需 sidecar。

Full-stack expense tracker built with Spring Boot, PostgreSQL, JWT & OTP auth, with dashboards, PDF/Excel reports, Swagger docs, and Docker support.

MediStockPro是一套面向医院 / 医疗机构的进销存（采购 - 库存 - 领用 - 核算）一体化管理系统，覆盖物资主数据、采购全链路、科室申领、库存作业（入库 / 出库 / 调拨 / 盘点 / 退库 / 报废）、效期预警、报表分析与精细化权限控制。

给 Java 应用加审批：Vue 流程设计器、会签与或签、若依接入示例。Approval flows for Java, with a Vue designer and RuoYi examples.

Web application for exploring and monitoring environmental indicators

Typed judgments for Java: declare questions as an interface and let Jev answer them.

An HR management system where employees apply for leave and HR approves it, built on a Spring Boot gateway in front of a Java RMI server.

NetSentry is a web service that automates the process of converting schedule images into Google Calendar events.

AS/RS simulator: MES schedule → WMS queue → ECS → stacker crane PLC handshake (Spring Boot, React)

面向组织及其应用的身份与访问管理系统，支持 OIDC 单点登录、TOTP 多因素认证，以及统一的用户、角色和会话管理。 Identity and access management for organizations and their applications, with OpenID Connect SSO, TOTP MFA, and centralized user, role, and session management.

Integrated Eco-Tourism & Resort Management System for Dong Giang Heaven Gate (Java, Spring Boot, MS SQL Server).

A Spring Boot toolkit for calling third-party HTTP APIs: automatic authentication, transparent credential renewal, and Feign-style declarative clients.

POC de resiliencia en pagos con Java 25, Spring Boot y Resilience4j. Compara Circuit Breaker, Retry, Rate Limiter, Bulkhead y Time Limiter frente a fallas simuladas, con idempotencia y observabilidad en Prometheus y Grafana para visualizar métricas, rechazos y cambios de estado.

Java Spring Boot Microservices Learning Project

☁️ CloudShare – Full-Stack-App zum Hochladen, Verwalten und Teilen von Dateien mit React, Spring Boot, MongoDB und Tailwind CSS. JWT-Login, Teilen per Link, Credit-System und Stripe-Zahlungen.

Production-grade URL shortener with async Kafka analytics, Redis caching, rate limiting, and Dead Letter Topic retry -- built with Spring Boot 4 & PostgreSQL

An educational bicycle website built with Java, Spring Boot, PostgreSQL and Thymeleaf.