Stars
「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！
Demonstrate all the questions on LeetCode in the form of animation.（用动画的形式呈现解LeetCode题目的思路）
Free and Open Source, Distributed, RESTful Search Engine
RxJava – Reactive Extensions for the JVM – a library for composing asynchronous and event-based programs using observable sequences for the Java VM.
The java implementation of Apache Dubbo. An RPC and microservice framework.
Alibaba Java Diagnostic Tool Arthas/Alibaba Java诊断利器Arthas
Netty project - an event-driven asynchronous network application framework
an easy-to-use dynamic service discovery, configuration and service management platform for building cloud native applications.
Apollo is a reliable configuration management system suitable for microservice configuration management scenarios.
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
Spring Cloud Alibaba provides a one-stop solution for application development for the distributed solutions of Alibaba middleware.
FASTJSON 2.0.x has been released, faster and more secure, recommend you upgrade.
Event bus for Android and Java that simplifies communication between Activities, Fragments, Threads, Services, etc. Less code, better quality.
APM, Application Performance Monitoring System
Redisson - Easy Redis Java client and Real-Time Data Platform. Valkey compatible. Sync/Async/RxJava/Reactive API. Over 50 Redis or Valkey based Java objects and services: Set, Multimap, SortedSet, …
A powerful flow control component enabling reliability, resilience and monitoring for microservices. (面向云原生微服务的高可用流控防护组件)
Apache RocketMQ is a cloud native messaging and streaming platform, making it simple to build event-driven applications.
光 HikariCP・A solid, high-performance, JDBC connection pool at last.
Distributed SQL transaction & query engine for data sharding, scaling, encryption, and more - on any database.
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。
ANTLR (ANother Tool for Language Recognition) is a powerful parser generator for reading, processing, executing, or translating structured text or binary files.
🚌 The IK Analysis plugin integrates Lucene IK analyzer into Elasticsearch and OpenSearch, support customized dictionary.
A high performance caching library for Java
🔥🔥🔥AI-driven database tool and SQL client, The hottest GUI client, supporting MySQL, Oracle, PostgreSQL, DB2, SQL Server, DB2, SQLite, H2, ClickHouse, and more.
Apache Pulsar - distributed pub-sub messaging system