The Web layer consists of the spring-web, spring-webmvc and spring-websocket modules.
The spring-web module provides basic web-oriented integration features such as multipart file upload functionality and the initialization of the IoC container using Servlet listeners and a web-oriented application context. It also contains an HTTP client and the web-related parts of Spring’s remoting support.
The spring-webmvc module (also known as the Web-Servlet module) contains Spring’s model-view-controller (MVC) and REST Web Services implementation for web applications. Spring’s MVC framework provides a clean separation between domain model code and web forms and integrates with all of the other features of the Spring Framework.
Web层由spring-web，spring-webmvc和spring-websocket模块组成。(注：这里和4的文档比少了spring-webmvc-portlet模块)
spring-web模块提供基本的面向Web的集成功能，例如多部分文件上传功能和使用Servlet侦听器和面向Web的应用程序上下文来初始化IoC容器。 它还包含一个HTTP客户端和Web的相关部分的Spring的远程支持。
spring-webmvc模块（也称为Web-Servlet模块）包含用于Web应用程序的Spring的模型视图控制器（MVC）和REST Web服务实现。 Spring的MVC框架提供了domain model（领域模型）代码和Web表单之间的清晰分离，并且集成了 Spring Framework 所有的其他功能。