Apache Kafka, Apache Flink and Confluent Platform examples and demos
Apache Drill is a distributed MPP query layer for self describing data
Official GeoTools repository
fuint门店会员营销系统是一款集店铺收银、线上积分商城、营销一体的小程序商城系统。基于Java SpringBoot、Vue、Uniapp,含微信小程序、h5、后台管理。具有优惠券、预存卡、实体卡、次卡、储值卡、电子券,会员积分体系,会员等级等营销功能。适合实体店铺结合线上电商系统,如:生鲜、零售超市、汽车4S店、花店、甜品店、餐饮等。可当收银系统使用,打通线下收银系统和线上商城
Automated testing to find logic and performance bugs in database systems
Postgresql JDBC Driver
A multi-modal vector database that supports upserts and vector queries using unified SQL (MySQL-Compatible) on structured and unstructured data, while meeting the requirements of high concurrency and ultra-low latency.
JWT auth service using Spring Boot, Spring Security and MySQL
PolarDB-X is a cloud native distributed SQL Database designed for high concurrency, massive storage, complex querying scenarios.
Ebean ORM
Code Examples for Oracle AI Database
StackGres Operator, Full Stack PostgreSQL on Kubernetes // !! Mirror repository of https://gitlab.com/ongresinc/stackgres, only accept Merge Requests there.
🔥🔥🔥 A read-only ORM for complex queries in Java
Infinispan is an open source data grid platform and highly scalable NoSQL cloud data store.
智能办公OA系统[SpringBoot2-快速开发平台],适用于医院,学校,中小型企业等机构的管理。Activiti5.22+动态表单实现零java代码即可做到复杂业务的流程实施,同时包含文件在线操作、日志、考勤、CRM、ERP进销存、项目、拖拽式生成问卷、日程、笔记、计划、行政等多种复杂业务功能。同时,可进行授权二开。
SQL DSL (Domain Specific Language) for Kotlin and Java. Supports rendering for MyBatis or Spring JDBC Templates
Java ORM alternative to MyBatis & Hibernate: JPA-style CRUD + SQL-first queries. Dynamic conditions without <if> blocks; one SQL across 25 databases (auto dialect & function adaptation); self-optimizing pagination; cache translate (no dictionary JOINs); race-proof updateFetch ledgers; sharding, multi-tenancy, data masking. In production since 2008.
The Microsoft JDBC Driver for SQL Server is a Type 4 JDBC driver that provides database connectivity with SQL Server through the standard JDBC application program interfaces (APIs).
Postgresql R2DBC Driver
Spring Boot integration with p6spy, datasource-proxy, flexy-pool and spring-cloud-sleuth
Apache Phoenix
Player Analytics plugin for Minecraft Server platforms - View player activity of your server with ease. :calendar:
Agents-flex is A lightweight Java AI agent development framework (positioned as a counterpart to Spring AI). It supports features such as RAG, MCP, Skills, Text2SQL , LLM Wiki, Sub-agents, Web Search, TTS (synchronous and streaming), and STT.
Eloquent ORM for Java 8, 11, 17, 21, 23 and Spring boot 2.x , 3.x
DBSyncer(简称dbs)是一款开源的数据同步中间件,提供MySQL、Oracle、SqlServer、PostgreSQL、Elasticsearch(ES)、Kafka、File、SQL等同步场景。支持上传插件自定义同步转换业务,提供监控全量和增量数据统计图、应用性能预警等。
NoSQL embedded document store for Java
High performance reactive SQL client written in Java
MariaDB Embedded in Java JAR
Container auto-configurations for Spring Boot based integration tests
Rich Criteria API for JPA providers
:star: Codebase for various tutorials about Java, Spring Boot, AWS, Kotlin, and Testing
java/kotlin high performance lightweight solution for jdbc query,support oltp and olap query,一款java下面支持强类型、轻量级、高性能的ORM,致力于解决jdbc查询,拥有对象模型筛选、隐式子查询、隐式join
The ultimate distributed MQTT broker. Handles 100M+ connections and 10M msg/sec with ease. Built on Kafka to provide industrial-grade persistence and eliminate data loss.
摸鱼岛🎣后端 基于爬虫 ➕ Netty ➕ SpringBoot ➕Redis➕ MySQL 开源🌟一站式摸鱼网
一站式 Spring Cloud 微服务脚手架 —— 让微服务开发像搭积木一样简单。支持服务合并部署与拆分部署、接口加解密签名、日志数据 脱敏、接口数据mock、接口文档自动生成、请求幂等校验、接口日志&&sql日志切面打印、分表分库分布式事务、国际化语言、接口监控及服务监控等
A relational database with SQL support built on FoundationDB
A cluster consistency platform
FlyCms 是一个类似知乎以问答为基础的完全开源的JAVA语言开发的社交网络建站程序,基于 Spring Boot+Bootstrap3+MyBatis+MySql+Solr +Ehcache应用架构,专注于社区内容的整理、归类和检索,它集合了问答,digg,wiki 等多个程序的优点,帮助用户轻松搭建专业的知识库和在线问答社区。业务模块包括:权限管理,会员管理,角色管理,定时任务管理(调度管理),问答管理,文章管理,分享管理,短信接口管理和邮件系统发送(注册、找回密码、邮件订阅),跨域登录,消息推送,全文检索、前端国际化等等众多模块,等您自己来体验!
Universal HTAP Engine
a online Marketplace for coffee retail (Backend)
REST version of the Spring Petclinic sample application
🔥🔥🔥 Turn AI-written code into real apps. Nubase is an open-source, AI-native backend platform for AI Coding, agentic applications, and modern product teams: Memory, Database, Storage, and Auth in one self-hostable service.
Open-source systems management and configuration platform
🚀 超级八股文 🚀 - 告别死记硬背的 Java 全栈技术知识库!100万+字的讲解,原理剖析 + 丰富代码示例 + 清晰流程图解,让你真正理解每一个技术点!
QuickPerf is a testing library for Java to quickly evaluate and improve some performance-related properties
DAO oriented database mapping framework for Java
ReplicaDB is open source tool for database replication, designed for efficiently transferring bulk data between relational and non-relational databases
XS-NET 是面向长连接、持久化玩家状态与多节点扩展的 Java 游戏服务器框架,适用于 MMORPG/RPG、SLG、卡牌回合制及房间副本类游戏。基于 Pekko Actor 分片管理玩家、场景与战斗实体,支持 TCP、UDP、KCP、WebSocket、Protobuf RPC、多端 SDK,以及 Redis 缓存和 PostgreSQL 异步持久化。
An open-source event-driven personal finance platform built with Java, Spring Boot, Spring Batch, Spring Security, PostgreSQL, Redis, Amazon SQS, React, Terraform, and AWS.
Emporia is a microservices-based trading platform built with Spring Boot, React and PostgreSQL, featuring real-time market data, order management, execution strategies, and OAuth2 security.
智职星.职业规划平台基于Java21+ Spring Boot+ Spring AI+ Vue3+ TypeScript+ MySQL+ PostgreSQL+ Docker实现多阶段容器化部署,RAG检索增强生成,ConditionalRAG策略,实现安全降级,ToolCalling工具调用,Muti-Agent架构,
A zero-dependency embedded Java record store that adds asynchronous persistence, SQL-like querying, and shared-nothing clustering to the familiar ConcurrentHashMap API.
An data service platform that turns SQL or Groovy scripts into RESTful APIs and MCP tools, with many data sources and built-in auth, rate limiting, firewall, and version rollback.数据服务平台:把 SQL / Groovy 脚本一键发布为 RESTful API 或 MCP 工具,支持多种数据源,内置鉴权、限流、防火墙与版本回滚。
SQL injection vulnerability in Android 17 (AOSP)
Jync 捷同 - 极简、极速的异构数据库实时同步工具。单 JAR 部署,无需 Kafka/Zookeeper,零外部依赖。支持 MySQL、Oracle、PostgreSQL 及众多信创数据库。内置 DDL 自动同步、幂等 upsert、断点续传,内网离线可用。沐编程 (QQMu) 出品 | 官网: https://jync.qqmu.com
The database agent for Postgres and MySQL - Point it at PostgreSQL or MySQL and ask questions in plain English — schema exploration, query generation, slow query analysis, index recommendations, generated dashboards. Self-hosted and air-gapped.
A modern Java PostgreSQL driver
Java 21 / Spring Boot 3 医院门诊工程原型,包含排班预约、测试收费、接诊病历及三端页面;采用 MySQL 事务与幂等约束、RBAC 与数据范围控制,真实支付和医疗系统集成及部分验收待完成。
Cloud native, event driven luxury fashion discovery & headless commerce backend. Built with 20+ Spring Boot 3 microservices, Apache Kafka, Redis, PostgreSQL (DB per service), gRPC, MinIO S3, and deployed on Contabo Cloud VPS.
SymmetricDS is database replication and file synchronization software that is platform independent, web enabled, and database agnostic. It is designed to make bi-directional data replication fast, easy, and resilient. It scales to a large number of nodes and works in near real-time across WAN and LAN networks.