用JDOM和XML实现异构数据库的数据提取

大量分散的形式及不同格式的数据给现代数据处理带来了越来越大的困难。为统一数据形式以利于数据操作和处理,讨论了将形式多样的数据格式转换成统一的XML(Extensible Markup Language)格式的问题。对数据源中不同格式文件数据,按照预先定义的XML模板,以格式说明文件结构统一描述,并提取数据或作进一步的处理,最后转换为XML格式输出。文中论述了从数据库中提取数据转换为XML格式的方法及步骤,并且方法简单实用,可以推广到对所有格式数据的提取。

Extracting Data from Heterogeneous Database with JDOM and XML

The largely dispersive and different forms of data have resulted in more and more difficulties to the modern data processing.In order to unify the data form to help data operating and processing,the issue how to transform the various data forms into unified XML(extensible markup language) format is discussed.For the file data of different forms in the source data,according to the predefining XML cyclostyle,with unified specification in the structure of format specification file processing,and finally outputting the transforming into XML format.Also has extracted the data from the database to XML form,the method and the step of which is simple and practical,and might be promoted to all forms data's extracting.