Swagger UI allows anyone — be it your development team or your end consumers — to visualize and interact with the API’s resources without having any of the implementation logic in place. It’s automatically generated from your Swagger specification, with the visual documentation making it easy for back end implementation and client side consumption.
为了方便的管理项目中API接口，在网上找了好多关于API接口管理的资料，感觉目前最流行的莫过于Swagger了，功能强大，UI界面漂亮，并且支持在线测试等等
什么是 Swagger?
Swagger™的目标是为REST APIs 定义一个标准的，与语言无关的接口，使人和计算机在看不到源码或者看不到文档或者不能通过网络流量检测的情况下能发现和理解各种服务的功能。当服务通过Swagger定义，消费者就能与远程的服务互动通过少量的实现逻辑。类似于低级编程接口，Swagger去掉了调用服务时的很多猜测。
The goal of Swagger™ is to define a standard, language-agnostic interface to REST APIs which allows both humans and computers to discover and understand the capabilities of the service without access to source code, documentation, or through network traffic inspection. When properly defined via Swagger, a consumer can understand and interact with the remote service with a minimal amount of implementation logic. Similar to what interfaces have done for lower-level programming, Swagger removes the guesswork in calling the service.
Swagger-core is the Java implementation of Swagger. Current version supports JAX-RS and plain servlets. Integration with the Play! framework has been moved to Swagger-Play.
Check out Swagger-Spec for additional information about the Swagger project, including additional libraries with support for SpringMVC, other languages and more.
Swagger是一种Rest API的 简单但强大的表示方式，标准的，语言无关，这种 表示方式不但人可读，而且机器可读。 可以作为Rest API的交互式文档，也可以作为Rest API的形式化的接口描述，生成客户端和服务端的代码。
Swagger以下内容：
Swagger API Spec，描述Rest API的语言
Swagger UI，将Swagger API Spec以HTML页面展现出来的模块
Swagger Editor，Swagger API Spec的编辑器