「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！

Design patterns implemented in Java

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）

Everything you need to know to get the job.

Alibaba Java Diagnostic Tool Arthas/Alibaba Java诊断利器Arthas

A browser automation framework and ecosystem.

Apollo is a reliable configuration management system suitable for microservice configuration management scenarios.

微人事是一个前后端分离的人力资源管理系统，项目采用SpringBoot+Vue开发。

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

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。

Zipkin is a distributed tracing system

🚌 The IK Analysis plugin integrates Lucene IK analyzer into Elasticsearch and OpenSearch, support customized dictionary.

The official home of the Presto distributed SQL query engine for big data

Most popular Mocking framework for unit tests written in Java

Git Server with CI/CD, Kanban, and Packages. Seamless integration. Unparalleled experience.

Apache Druid: a high performance real-time analytics database.

APM, (Application Performance Management) tool for large-scale distributed systems.

Admin UI for administration of spring boot applications

VasSonic is a lightweight and high-performance Hybrid framework developed by tencent VAS team, which is intended to speed up the first screen of websites working on Android and iOS platform.

业内为数不多致力于极致体验的超强全自研跨平台(windows/linux/android/iOS)流媒体内核，通过模块化自由组合，支持实时RTMP推流、RTSP推流、RTMP播放器、RTSP播放器、录像、多路流媒体转发、音视频导播、动态视频合成、音频混音、直播互动、内置轻量级RTSP服务等，比快更快，业界真正靠谱的超低延迟直播SDK(1秒内，低延迟模式下150~300ms)。

Java JsonPath implementation

A powerful and lightweight plugin framework for Android

Enterprise job scheduling middleware with distributed computing ability.

💸 WeChat's lucky money helper (微信抢红包插件) by Zhongyi Tong. An Android app that helps you snatch red packets in WeChat groups.

Real - time non-invasive AOP framework container based on JVM

The Physical Web: walk up and use anything

A cross-language remote procedure call(RPC) framework for rapid development of high performance distributed services.

一本关于排序算法的 GitBook 在线书籍 《十大经典排序算法》，多语言实现。

A scalable, distributed Time Series Database.

GT (Great Tit) is a portable debugging tool for bug hunting and performance tuning on smartphones anytime and anywhere just as listening music with Walkman. GT can act as the Integrated Debug Envir…