| With the development of Internet and the difference of design platform, tools of development and databases, the traditional MIS and database system make the designer have to pay much time in them. While the application systems based on the Internet and Intranet have been quickly increased, and such patterns have spanned almost all operation system. In this circumstance, it gives a widely develop space. And many tools and software emerged at the same time, in the client port, such as the JavaScript and VBScript, and the nested discreteness, Java Applet, JavaBean and ActiveX. And in the sever port, many operation circumstances also emerged, such as CGI, ASP, JSP, ISAPI, PHP and Servlet. They provide solid base for the design of web database. But many problems come at the same time, which in the operation speed or in the difficulty of design or in the overloaded with details.Whereupon, distributing discreteness technology has been widely supported by many organizations and firms by the excellent tangs of security and retractile. And it gradually become the new standard of web database development.This paper; with such condition considered, researched the principle of the distributing discreteness model and system form, discussed the ways of the application in the design of web database. We focus on the J2EE, which presented by OMG, CORBA and SUN.Contemporary, we practically discussed and analyzed EJB (Enterprise Java Bean) technology and designed a web stock exchange system. In this paper the web stock exchange system which based on EJB used the JDBC to be the database accessing port, and used the EJB (Enterprise Java Bean) technology to realized the basic function of stock exchange by web, which including the management of the stockholders' accounts, entrusted buy in, entrusted sell out, search of entrusted exchange and exchange administer. Accordingly we realizedthe basic function of web stock exchanging by the use of EJB (Enterprise Java Bean) technology in the web circumstance.
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