A Unified Platform Based On J2ee And Xml Pre-paid Electronic Payment

As the developing of the computer network and information technology, People begin to attach importance to the electro-prepay more and more. But, at present, most of the electro-prepay systems are single-business electro-prepay system. Clearly, it is very inconvenient to users with multi-businesses. For example, most of common domestic users have all kinds of consumptions in family, such as water-cost, power-cost, gas-cost etc. But, now, those users have to go to the assigned bank to pay some of cost, such as power-cost. So the research of the united electro-prepay system is more and more important and becoming the hotspot of research. But the difficulty in research is how to realize the trans-operating system and trans-data source united electro-prepay systemThe paper designs the united electro-prepay platform based on the water, power and gas. The platform can be divided into two modules: Electronic-Data-Interchange module, Web-Query and Web-Pay module. The Electronic-Data-Interchange module can make the following operations. First, it extracts the data in client. Second, it packs the data in XML document by the Java DataBinding technology, which makes the data into the united XML structure. Third, it transfers the XML document to the server side in the form of text stream on network. At server side, the server unmarshals the XML document into the central-database. Web-Query and Web-Pay module is designed by the Struts pattern of the MVC architecture based on J2EE. And the operation of the central-database adopts the Facade-Session Bean design mode, which uses the session bean to access the entity bean.After the tests of the program, the united electro-prepay platform can basically make the extraction of the data in trans-data source and Web-Query and Web-Pay.