Conversion Based On Data Between Heterogeneous Databases In The Xml And Component Development

An advanced electronic business enterprise has not only internal EDI but also accurately EDI between trading partners, which can operate efficiently, accurately and punctually. It realizes data-exchanging between data sources having different structure by adopting XML as the data media of data-exchanging among e-Business Systems. The modularization of data-converting technologies between XML and Relational Database can improve in reusability, expansibility and maintainability.Aiming at the basic requirement of bills of document-exchanging among the e-business systems and combining Object-Oriented (OO) software component technologies, this paper has designed and realized the general data convert system based on XML. We use standard XML module to express the data exchange and design the converting script XML file to describe the reflection relation between relational module and XML module. Here, The design and actualization of data-converting component exchanging data format between relational database and XML document are discussed, and, based on DOM parser, data-converting algorithms inside the components of both server side and client side are introduced indetail. Hope to provide a good idea for researching and realizing other type data-transmission between different structural databases.While concretely implementing these algorithms, as long as we produce an simple and intuitive converting script for each kind of bill document, and call the data converting component interfaces, we can easily draw (or store) the XML files with hierarchy relation.