The Research And Application Of Enterprise Information System Based On J2EE

With the development of computer technology, the enterprise information system based on Client/Server architecture has made success during these years. But with the development of Internet and the widely use of Internet technology, The traditional C/S architecture can't meet the needs of enterprise's development, and the Multi-layer structures based on B/S architecture have better in reusability and extensibility, so more and more enterprise information system move to Multi-layer structure. Just under such a background, Sun Microsystem Inc. provides J2EE platform for that requirement. The J2EE platform is an architecture which is used to simplify the complication of development, deployment and management of enterprise solutions, and supplies middle-tier integrated framework to satisfy the requirement which needs a little cost but high availability, high reliability and extensibility.This thesis takes the construction of WanFang enterprise's information system as background, introducing the architecture of the application and analysis the framework of the system using design patterns, then researches the public Web query module. With those analyses, we can get the conclusion that systematic expansibility and interaction of other systems can be improved effectively by applying XML and design pattern to J2EE system. Those methods also offer reference for the construction of enterprise information system in the future.