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Apache-2.0

Spring Cloud Alibaba

CircleCI Maven Central Codecov License

Spring Cloud Alibaba 致力于提供微服务开发的一站式解决方案。此项目包含开发分布式应用微服务的必需组件,方便开发者通过 Spring Cloud 编程模型轻松使用这些组件来开发分布式应用服务。

依托 Spring Cloud Alibaba,您只需要添加一些注解和少量配置,就可以将 Spring Cloud 应用接入阿里微服务解决方案,通过阿里中间件来迅速搭建分布式应用系统。

参考文档 请查看 WIKI

为 Spring Cloud Alibaba 贡献代码请参考 如何贡献

主要功能

  • 服务限流降级:默认支持 WebServlet、WebFlux, OpenFeign、RestTemplate、Spring Cloud Gateway, Zuul, Dubbo 和 RocketMQ 限流降级功能的接入,可以在运行时通过控制台实时修改限流降级规则,还支持查看限流降级 Metrics 监控。
  • 服务注册与发现:适配 Spring Cloud 服务注册与发现标准,默认集成了 Ribbon 的支持。
  • 分布式配置管理:支持分布式系统中的外部化配置,配置更改时自动刷新。
  • 消息驱动能力:基于 Spring Cloud Stream 为微服务应用构建消息驱动能力。
  • 分布式事务:使用 @GlobalTransactional 注解, 高效并且对业务零侵入地解决分布式事务问题。
  • 阿里云对象存储:阿里云提供的海量、安全、低成本、高可靠的云存储服务。支持在任何应用、任何时间、任何地点存储和访问任意类型的数据。
  • 分布式任务调度:提供秒级、精准、高可靠、高可用的定时(基于 Cron 表达式)任务调度服务。同时提供分布式的任务执行模型,如网格任务。网格任务支持海量子任务均匀分配到所有 Worker(schedulerx-client)上执行。
  • 阿里云短信服务:覆盖全球的短信服务,友好、高效、智能的互联化通讯能力,帮助企业迅速搭建客户触达通道。

更多功能请参考 Roadmap

组件

Sentinel:把流量作为切入点,从流量控制、熔断降级、系统负载保护等多个维度保护服务的稳定性。

Nacos:一个更易于构建云原生应用的动态服务发现、配置管理和服务管理平台。

RocketMQ:一款开源的分布式消息系统,基于高可用分布式集群技术,提供低延时的、高可靠的消息发布与订阅服务。

Dubbo:Apache Dubbo™ 是一款高性能 Java RPC 框架。

Seata:阿里巴巴开源产品,一个易于使用的高性能微服务分布式事务解决方案。

Alibaba Cloud OSS: 阿里云对象存储服务(Object Storage Service,简称 OSS),是阿里云提供的海量、安全、低成本、高可靠的云存储服务。您可以在任何应用、任何时间、任何地点存储和访问任意类型的数据。

Alibaba Cloud SchedulerX: 阿里中间件团队开发的一款分布式任务调度产品,提供秒级、精准、高可靠、高可用的定时(基于 Cron 表达式)任务调度服务。

Alibaba Cloud SMS: 覆盖全球的短信服务,友好、高效、智能的互联化通讯能力,帮助企业迅速搭建客户触达通道。

更多组件请参考 Roadmap

如何构建

  • master 分支对应的是 Spring Cloud Greenwich,最低支持 JDK 1.8。
  • finchley 分支对应的是 Spring Cloud Finchley,最低支持 JDK 1.8。
  • 1.x 分支对应的是 Spring Cloud Edgware,最低支持 JDK 1.7。

Spring Cloud 使用 Maven 来构建,最快的使用方式是将本项目 clone 到本地,然后执行以下命令:

./mvnw install

执行完毕后,项目将被安装到本地 Maven 仓库。

如何使用

如何引入依赖

如果需要使用已发布的版本,在 dependencyManagement 中添加如下配置。

<dependencyManagement>
    <dependencies>
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-alibaba-dependencies</artifactId>
            <version>2.2.5.RELEASE</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency>
    </dependencies>
</dependencyManagement>

然后在 dependencies 中添加自己所需使用的依赖即可使用。

演示 Demo

为了演示如何使用,Spring Cloud Alibaba 项目包含了一个子模块spring-cloud-alibaba-examples。此模块中提供了演示用的 example ,您可以阅读对应的 example 工程下的 readme 文档,根据里面的步骤来体验。

Example 列表:

Sentinel Example

Nacos Config Example

Nacos Discovery Example

RocketMQ Example

Seata Example

Alibaba Cloud OSS Example

Alibaba Cloud SMS Example

Alibaba Cloud SchedulerX Example

版本管理规范

项目的版本号格式为 x.x.x 的形式,其中 x 的数值类型为数字,从 0 开始取值,且不限于 0~9 这个范围。项目处于孵化器阶段时,第一位版本号固定使用 0,即版本号为 0.x.x 的格式。

由于 Spring Boot 1 和 Spring Boot 2 在 Actuator 模块的接口和注解有很大的变更,且 spring-cloud-commons 从 1.x.x 版本升级到 2.0.0 版本也有较大的变更,因此我们采取跟 SpringBoot 版本号一致的版本:

  • 1.5.x 版本适用于 Spring Boot 1.5.x
  • 2.0.x 版本适用于 Spring Boot 2.0.x
  • 2.1.x 版本适用于 Spring Boot 2.1.x
  • 2.2.x 版本适用于 Spring Boot 2.2.x

社区交流

邮件列表

spring-cloud-alibaba@googlegroups.com,欢迎通过此邮件列表讨论与 spring-cloud-alibaba 相关的一切。

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社区相关开源

Nepxion Discovery:一款集成Spring Cloud Alibaba、Nacos、Sentinel等阿里巴巴中间件,实现网关和服务的灰度发布、路由、权重、限流、熔断、降级、隔离、监控、追踪等功能的微服务开源解决。使用指南 请参考 Nepxion Discovery Guide

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