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javahongxi/whatsmars
Java生态研究(Spring Boot + Redis + Dubbo + RocketMQ + Elasticsearch)🔥🔥🔥🔥🔥
A Java monorepo that collects working examples for the mainstream Chinese enterprise middleware stack: Spring Boot, Dubbo, RocketMQ, Kafka, Redis, Elasticsearch, Netty, ShardingSphere, and more recently Spring AI and LangChain4j. Primarily useful as a reference or study aid for developers already familiar with this ecosystem, particularly those working in or learning from Alibaba-influenced architectures.
The breadth of coverage is genuinely useful — getting Dubbo, Nacos, Sentinel, ShardingSphere, and RocketMQ wired together with Spring Boot in one buildable repo saves real time versus assembling it from scattered tutorials. The addition of Spring AI and LangChain4j examples (with MCP server support) makes the AI module worth a look for Java developers trying to integrate LLMs into the same stack. The common module has solid implementations of things like consistent hashing, MDC propagation wrappers, and serialization comparisons that are more useful than typical 'hello world' examples. Active maintenance — last push yesterday — means the dependencies are being kept current, which matters in a fast-moving ecosystem.
This is a study repo, not a library — there is nothing to import, no published artifact, and no API surface to build on top of. The README is almost entirely in Chinese with no English-language getting-started guide, which limits its audience to Chinese-speaking developers or those willing to machine-translate. There are essentially no tests for the integration examples; the test coverage that exists is only for the utility classes. The module count has grown to the point where the root pom holds 15+ subprojects, many with their own sub-subprojects, and there is no clear guidance on which modules depend on local infrastructure (ZooKeeper, Nacos, RocketMQ brokers) versus which can run standalone.