「Java学习+面试指南」一份涵盖大部分 Java 程序员所需要掌握的核心知识。准备 Java 面试，首选 JavaGuide！

Spring Boot helps you to create Spring-powered, production-grade applications and services with absolute minimum fuss.

Spring Framework

Google core libraries for Java

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

阿里云计算平台DataWorks(https://help.aliyun.com/document_detail/137663.html) 团队出品，为监控而生的数据库连接池

FASTJSON 2.0.x has been released, faster and more secure, recommend you upgrade.

🔥 Seata is an easy-to-use, high-performance, open source distributed transaction solution.

Apache Flink

MyBatis SQL mapper framework for Java

CAT 作为服务端项目基础组件，提供了 Java, C/C++, Node.js, Python, Go 等多语言客户端，已经在美团点评的基础架构中间件框架（MVC框架，RPC框架，数据库框架，缓存框架等，消息队列，配置系统等）深度集成，为美团点评各业务线提供系统丰富的性能指标、健康状况、实时告警等。

Apache Doris is an easy-to-use, high performance and unified analytics database.

Redis Java client

阿里巴巴分布式数据库同步系统(解决中美异地机房)

Distributed ID Generate Service

This is the new home of the original DDD Sample app (previously hosted at sf.net)..

Demonstrates the features of the Spring MVC web framework

龙果支付系统（roncoo-pay）是国内首款开源的互联网支付系统，拥有独立的账户体系、用户体系、支付接入体系、支付交易体系、对账清结算体系。目标是打造一款集成主流支付方式且轻量易用的支付收款系统，满足互联网业务系统打通支付通道实现支付收款和业务资金管理等功能。

OpenAI Api Client in Java

Easy Setup Stub Server

Java诊断工具

A production-grade java implementation of RAFT consensus algorithm.

Source-agnostic distributed change data capture system

Provide support to increase developer productivity in Java when using Elasticsearch. Uses familiar Spring concepts such as a template classes for core API usage and lightweight repository style dat…

Spring integration for MyBatis 3

极客时间视频课程《玩转Spring全家桶》

美团点评集团统一使用的MySQL数据库访问层的中间件。主要提供对业务开发透明、读写分库、分库分表能力，并提供了端到端SQL监控的集成方案。

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;

Provides Familiar Spring Abstractions for Apache Kafka

squirrel-foundation is a State Machine library, which provided a lightweight, easy use, type safe and programmable state machine implementation for Java.