【作者】 李锐；

【导师】 朱庆生；

【作者基本信息】 重庆大学 ， 计算机软件与理论， 2002， 硕士

【摘要】 XML作为一种商业应用之间传送数据的极好的手段，能以有效方式在应用之间存储、转换和传送数据，正不断受到青睐。 本文在基于一个．NET开发的酒店管理网站的基础上，引入了XML技术，对传统商业网站在新的数据表达形式和开发平台中发生的变化，及其带来的优势进行了深入的研究。 其主要工作和结论如下： (1)在商用网站中采用XML数据格式时，从设计的角度探索了在建立模型等方面的变化，提出一种引入XML之后基于B／S结构的数据模型。采用该模型后，该系统与传统的商用网站相比具有很大优势。包括减少了网络流量、可以从多种不同的数据源集成数据、使系统组件化、可扩充性和可重用性提高等。 (2)针对当前关系数据库广泛应用的事实，研究了XML文档和关系数据库之间数据的双向转换，并讨论了如何把XML查询表达式转换为SQL查询的问题。 (3)在传统商业应用三层体系结构的基础上，提出一种Web应用的4层架构B／S／D／C，综合了B／S和C／S结构的优越性，具有实用价值。 (4)介绍了XML基本知识和.NET开发平台的使用。讨论了Web服务、数据管理及安全性问题。 (5)将研究的思路运用于实际，在.NET平台下开发了商用网站，针对不同的功能需求在设计上有不同的考虑，成功地实现了提出的4层架构这种新的体系结构的应用。更多还原

【Abstract】 As good means of transmitting data between commercial applications, XML technology is becoming popular in that it can store, transform, and transmit data in an efficient way.This paper is based on a hotel management web site that is devised by .NET. Applying XML technology, the author does deep research on the change and advantage of traditional commercial web site, which is accompanied by the new data expression style and developing tool.The main ideas and conclusion is as below:(1) Applying XML data in commercial web site, the author does research on the change of establishing data model from the devising point of view, contrives a data model that is based on XML and Browser/Server structure. This model, compared with tradional one, has great advantages: Reducing data flux of web sites, integrating data from different sources, enhancing the ability of groupwaring, expandedness and repeated usage.(2) Due to the popularity of relational databases, we study the bi-way transformation between the XML documents and relational databases. Furthermore, we discuss the way of transforming XML query expression into SQL query.(3) Based on the 3-tier web application structure, the author presents a new idea of 4-tier structure (B/S/D/C), which synthetizes the merits of B/S and C/S structure, and has practical value.(4)Basic knowledge of XML and the application of .NET developing platform are introduced. Web services, data management and securing problem are also be discussed.(5)We turned the researching ideas into practice, and developed commercial web site with .NET platform. With regard to the different functional needs, our devising throughtways are diverse, and we successfully construct the 4-tier structure web applications.更多还原