Introduction

Axon提供了Axon Framework与Axon Server用来帮助构建以三个核心概念（CQRS (命令查询职责分离) / Event Sourcing（事件溯源）and DDD (领域驱动设计)）为中心的应用程序。

尽管很多类型的应用都可以被Axon构建，但是事实证明，Axon在微服务架构中非常出名。Axon为微服务架构提供了一种创新而强大的方法，便于微服务演进成事件驱动的微服务。

How to use this guide

参考指南被分为4个章节

章节名称	目的
Quick Start	详细介绍Axon快速开始工具包，轻松熟悉Axon Framework和Axon server的基本概念
Axon Framework	详细介绍如何基于Axon Framework构建应用程序。
Axon Server	详细介绍了Axon Server的初始化与维护。
Axon Framework Extensions	详细介绍了Axon Framework为了与现有企业技术设施而提供的扩展。

License(s)

 

The Axon platform consists of Axon Framework and Axon Server. It is provided by AxonIQ B.V. under the licenses described below.

 

• Axon Framework, as well as the Axon documentation and sample programs, are open source and provided under the Apache License v2.0.

• For Axon Server, licensing depends on the version.

  • The standard version, called "Axon Server", is open source and free to download and use. It is provided under an AxonIQ-specific open source license. While this license allows you to run the software freely in any environment, it is less permissive than the Apache License. For instance, it doesn't allow you as a licensee to create a derivative work.

  • The commercial version, called "Axon Server Enterprise", as well as the various "Packs", are closed source and provided under a commercial license agreement.