基于XML的中间层交互技术的研究

由于HTML自身的不足．所以无法适应Web发展的复杂性和多变性，也不利于机器之间的数据交换和信息传递，通过对XML和HTML作多个角度的对比，文中提出将XML作为载体实现Web上的动态交互。首先从XML的自身特点出发，分析了XML驱动下的Web体系结构，从而得出基于XML的中间层交互技术的实现原理．重点研究了如何设计与XML相匹配的Web数据库，用XML查询数据库的实现方法，以及如何构造从XML到数据库的映射关系，具体包括从XIviL的DTD或者Schema出发来设计数据库的结构或者从数据库本身出发来构造与之相适应的DTD或Schema，最后分析了浏览XML格式信息的诸多策略。

Research of Interaction Technology of Middle Layer Based on XML

Because of the shortages of HTML itself, so it can not be suit of the complexity and levity of Web's development. And it is unsuitable for the data exchange and information transferring between the machines. This thesis contrast XML and HTML from some points of view, then it gives out how to realize the interaction of Web by use of XML. It analyzes the system structure of Web from the point of the characteristic of XML itself and gives out the principle of dynamic interaction technology of Web based on XML. Then it studies how to design the Web database matching XML, and how to search the database based on XML, and how to construct the mapping from XML to database, including how to design the structure of database from DTD or schema of XML, or how to design the corresponding DTD and schema from database itself. Finally it analyzes some strategies of how to display the information of the format of XML.