Design patterns implemented in Java

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

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）

Spring Framework

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

Netty project - an event-driven asynchronous network application framework

🔥 Android developers should collect the following utils(updating).

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

微信开发 Java SDK ，支持包括微信支付，开放平台，小程序，企业微信，视频号，公众号等的后端开发

🍬A set of tools that keep Java sweet.

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

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

APM, Application Performance Monitoring System

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)

Empowering Data Intelligence with Distributed SQL for Sharding, Scalability, and Security Across All Databases.

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 Druid: a high performance real-time analytics database.

Universal File Online Preview Project based on Spring-Boot

Admin UI for administration of spring boot applications

📌 a missing Java std lib(simple & 0-dependency) for framework/middleware, provide an enhanced InheritableThreadLocal that transmits values between threads even using thread pooling components.

The vip.com's java coding standard, libraries and tools

DataX集成可视化页面，选择数据源即可一键生成数据同步任务，支持RDBMS、Hive、HBase、ClickHouse、MongoDB等数据源，批量创建RDBMS数据同步任务，集成开源调度系统，支持分布式、增量同步数据、实时查看运行日志、监控执行器资源、KILL运行进程、数据源信息加密等。

LCN distributed transaction framework, compatible with dubbo, spring cloud and Motan framework, supports various relational databases

Distributed transaction solutions

Java诊断工具

SOFARPC is a high-performance, high-extensibility, production-level Java RPC framework.

Prometheus instrumentation library for JVM applications

AutoLoadCache 是基于AOP+Annotation等技术实现的高效的缓存管理解决方案，实现缓存与业务逻辑的解耦，并增加异步刷新及“拿来主义机制”，以适应高并发环境下的使用。

OpenTracing API for Java. 🛑 This library is DEPRECATED! https://github.com/opentracing/specification/issues/163

Reliable messages resolve distributed transactions