Research And Development On Component Of Advisory System Based On J2EE

Software reusability is one of the goals that software engineering has been pursued all the time. Software reuse can effectively solve software crisis, and it can improve the efficiency and quality of software development, besides it can reduce development and maintenance costs of software development also. Component-based Software Development is a practice of software reuse, component technology is the core technology used to support software reusability in CBD. Now, the development of components for specific application and specific areas has become hot of the current research.With the popularity of the Internet and advances in technology, many network-based applications make changes, resulting in a lot of Web-based applications. Such as MIS (management information system), OA (Office Automation System), ERP (enterprise resource system). They have applied network technology to their application systems. Because we can use Internet anywhere and anytime, the application system developed based on Internet can service users conveniently rapidly.Advisory services system is a typical application of network application systems. It has become an integral part of enterprise or sector. Web advisory services system is relying on the Internet environment, and it uses web site as development and service platforms. It is an advisory services and integration system whose aim is to meet the network users personalized demand for the primary purpose of online information resources by using advanced information technology, rich digital information resources and the implementation of a variety of functions.This paper applies component technology to Web advisory system. First of all we sum up the research status of component, after that, we expound the concept and related theory of components, followed, we introduce the components and component-based software development methods. Then we introduce advisory services and -related aspects of advisory system briefly. On the basis of analysis on advisory services system, we do the works of extraction, design and realization the components of the advisory system. At last using component-based software development methods, we design Web advisory system via use of components we developed.