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。

Java 18,963 5,416 Updated Jan 4, 2025

YunaiV / yudao-cloud

ruoyi-vue-pro 全新 Cloud 版本，优化重构所有功能。基于 Spring Cloud Alibaba + MyBatis Plus + Vue & Element 实现的后台管理系统 + 用户小程序，支持 RBAC 动态权限、多租户、数据权限、工作流、三方登录、支付、短信、商城、CRM、ERP、MES、IM、AI 大模型、IoT 物联网等功能。你的 ⭐️ Star ⭐️，是作…

Java 18,807 4,715 Updated Apr 12, 2026

pinpoint-apm / pinpoint

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

Java 13,822 3,760 Updated Apr 17, 2026

seaswalker / spring-analysis

Spring源码阅读

Java 13,756 4,148 Updated Mar 24, 2023

tink-crypto / tink

Tink is a multi-language, cross-platform, open source library that provides cryptographic APIs that are secure, easy to use correctly, and hard(er) to misuse.

Java 13,545 1,184 Updated Apr 17, 2024

google / guice

Guice (pronounced 'juice') is a lightweight dependency injection framework for Java 11 and above, brought to you by Google.

Java 12,737 1,685 Updated Feb 3, 2026

pagehelper-org / Mybatis-PageHelper

Mybatis通用分页插件

Java 12,369 3,106 Updated Mar 28, 2026

wildfirechat / im-server

即时通讯(IM)系统

Java 8,479 1,902 Updated Apr 10, 2026

dropwizard / metrics

📈 Capturing JVM- and application-level metrics. So you know what's going on.

Java 7,849 1,793 Updated Apr 14, 2026

apache / hertzbeat

An AI-powered next-generation open source real-time observability system.

Java 7,171 1,267 Updated Apr 16, 2026

Meituan-Dianping / Leaf

Distributed ID Generate Service

Java 6,741 1,873 Updated Jul 18, 2023

DerekYRC / mini-spring

mini-spring is a simplified version of the Spring framework that helps you quickly familiarize yourself with Spring source code and master Spring's core principles. It extracts Spring's core logic …

Java 6,357 1,446 Updated Feb 27, 2026

ZhongFuCheng3y / austin

消息推送平台🔥 推送下发【邮件】【短信】【微信服务号】【微信小程序】【企业微信】【钉钉】等消息类型。

Java 6,055 1,455 Updated Mar 1, 2026

zhanglei-workspace / shopping-management-system

该项目为多个小项目的集合（持续更新中...）。内容类似淘宝、京东等网购管理系统以及图书管理、超市管理等系统。目的在于便于Java初级爱好者在学习完某一部分Java知识后有一个合适的项目锻炼、运用所学知识，完善知识体系。适用人群：Java基础到入门的爱好者。

Java 5,192 2,233 Updated Mar 7, 2024

tuguangquan / mybatis

mybatis源码中文注释

Java 4,771 2,360 Updated Jun 29, 2022

ant-media / Ant-Media-Server

Ant Media Server — Ultra-low latency streaming engine with WebRTC (~0.5s), SRT, RTMP, HLS, CMAF, adaptive bitrate, transcoding & scaling

Java 4,662 682 Updated Apr 17, 2026

JFormDesigner / FlatLaf

FlatLaf - Swing Look and Feel (with Darcula/IntelliJ themes support)

Java 4,155 325 Updated Apr 1, 2026

freeplane / freeplane

Application for Mind Mapping, Knowledge Management, Project Management. Develop, organize and communicate your ideas and knowledge in the most effective way.

Java 4,062 480 Updated Apr 13, 2026