Study Of Web Report Tool Based On XML

With rapid development of Internet, report applications, one of the most important components of information systems, need to be changed towards Web. The report tools available, mainly based on client-component or static HTML page, can't fulfil the request of the user to create reports in real time and the function updates. New report tool used on Web is greatly needed to be developed.On the study of lots of report tools, this text gives a report tool model towards Web. The XRT report tool, based on XML, emphasizes on the two kernel problems of report: report data and report format. It separates a report into several sections, including header footer and detail etc, inside which the data items can be defined freely. Complex reports can be achieved by rich data calculations.This text mainly describes the user-defined report data language-XRDL. Thislanguage implements the syntax definition, such as report data source SQL operations between data and report conditions etc. The report data files can be gotten after the data parser parses the report data definition file with DOM.For the browser client, the tool uses XML/XSL to describe Web report information, and has the advantage of wide use. It also supports the multiplicity of report format.This text describes the design and implementation of the report tool thoroughly, and gives a new method for report development on Web.