即时通讯(IM)系统

Ultra-fast matching engine written in Java based on LMAX Disruptor, Eclipse Collections, Real Logic Agrona, OpenHFT, LZ4 Java, and Adaptive Radix Trees.

tcc-transaction是TCC型事务java实现

A trading engine with high-speed performance and real-time notification

基于Spring+SpringMVC+Mybatis分布式敏捷开发系统架构，提供整套公共微服务服务模块：集中权限管理（单点登录）、内容管理、支付中心、用户管理（支持第三方登录）、微信平台、存储系统、配置中心、日志分析、任务和通知等，支持服务治理、监控和追踪，努力为中小型企业打造全方位J2EE企业级开发解决方案。

A distribute transaction solution（分布式事务） unified the usage of TCC , SAGA ,FMT (seata/fescar AutoCompensation)， reliable message, compensate and so on;

A high-performance and stable proxy for MySQL, it is developed by Qihoo's DBA and infrastructure team

A configurable web spider with a easy-to-use web console

AliSQL is a MySQL branch originated from Alibaba Group. Fetch document from Release Notes at bottom.

ZXing ("Zebra Crossing") barcode scanning library for Java, Android

Android快速开发框架

A lightweight distributed message queue framework.(轻量级消息队列XXL-MQ)

A RPC service development framework.（RPC服务框架XXL-RPC）

The java implementation of Apache Dubbo. An RPC and microservice framework.