基于Spring的REST式Web服务研究与应用-计算机技术专业论文.docxVIP

摘要 在因特网迅猛发展的今天，Web 服务已经为人们所熟知。过去的十多年中， 传统的 Web 服务得到了快速的发展，为 Internet 上的 Web 服务提供了一个比较容 易实现的模型——远程过程调用（Remote Procedure Call，简称 RPC）。然而，随 着 Web 服务本身交互操作的急剧增加以及 Web 服务的增多，RPC 式 Web 服务所 具备的复杂而不统一的接口设计、繁琐而重复的操作、紧密耦合、可伸缩性差等 导致其越来越不适用。基于表述性状态转移（Representational State Transfer，简称 REST）设计原则的面向资源的架构逐渐为更多的人所采用，REST 式软件架构也 已成为当今世界上最成功的互联网超媒体分布式系统。 本文分析了 Web 服务的发展现状，对 REST 式 Web 服务的规范和要素做出了 详细的阐述，从设计的角度分析并对比了 REST 式及 RPC 式 Web 服务实现过程中 的技术，并对 REST 式 Web 服务的特征及应用领域进行了深入的研究。文中详细 阐述了如何在 REST 设计风格的约束范围内，以面向资源的架构（Resource-Objected Architecture，简称 ROA）为核心，根据超文本传输协议（Hyper Text Transport Protocol，简称 HTTP）实现并简化服务接口之间的交互，用 Java 语言逐步实现一 个 Web 服务。最后，将文中的研究成果应用于实践，在基于 Spring 架构的基础上， 设计并实现了虚拟三维场景平台。 关键词：Web 服务 REST 面向资源的架构 Spring 框架 Abstract Along with the rapid development of Internet, web service has been well-known for the public. During the last ten years, traditional web services which bases on SOAP protocol and WSDL language developed rapidly, they provided an easy-implementing model (RPC, Remote Procedure Call) to develop web application. However, with the sharp increase of web services’ interaction and amount, the RPC-style web services have been less applicable because of their character (complex and non-unified interface, tightly coupled, poor scalability, tedious operations). Gradually, resource-oriented architecture which based on REST (Representational State Transfer) design principles has become the most famous one. This paper analyzes the current development of web services, expounds the elements and specifications of RESTful web services, researches the technologies and introduces the characteristics and application areas of them. In this paper, I make a detail explain about how to implementation a resource-objected web service within the constraints of REST design style. We can implement interaction between them by HTTP methods. Base on the research of RESTful web services, this paper introduces the Spring framework, designs and implements a RESTful virtual three-dimension