A. System structure and development tool
Based on B/S structure, Windows2005 operational system
and Database server of SQL Server2005, the system can
communicate with other systems by merging JSP network
programming with java technology, especially realize seamless
connection with SQL Server 2003 by JDBC technology[6]. As
well, the functions of statistic analysis which is aimed at
pollution source data in foundation database, and drawing
relevant graphs, are realized by Delphi programming language.
Simultaneously, Microsoft office can be inset into Delphi as an
automated object for utilizing office resource. So it is easy that
the application programs of Office (Word, Excel, PowerPoint,
Access and etc.) are controlled as a Com module of application
server. Taking “Word” for example, we can use Servers
controls or Com module of Delphi to call “Word”[7].