Research On Application Of Design Pattern In The Systems Based On J2EE

Internet has already been becoming one of the main applications in IT, the pivotal technology of Internet is prograssed fast. J2EE is a middleware architecture released by Sun Microsystem Inc, which is a platform using uniform standard and technology on this platform. In order to extend the J2EE application, some institution and specialists collect some J2EE core patterns, which provide the best strategy and solution in J2EE developing.Micro architecture is a combination of a set of design pattern. Only with the micro architecture the design patterns can play their best function.This thesis found the key problems when design a middle & small scale web applications.that is there's no combination of design patterns(micro-architecture) fit to the situation, design patterns only stand alone, and no description of the relationship of design patterns. After research of J2EE design patterns present a new micro architecture to solve the problem.It was researched that which kind of software layers were needed when design a middle & small scale web applications. J2EE development platform was choosen after analysis. With the research of J2EE core design patterns the SAMSWA was produced which consist of Intercepting Filter, Front Controller, Business Delegate, Value Object, Session Fa(?)ade etc. The features of SAMSWA is it takes account of the complexity and maneuverability, it ensure the application's security and let it run at high efficiency. SAMSWA can be a good helper for other Web application designer.At last SAMSWA was used in the design of "Meeting information system of Heilongjiang Institute and Technology", it was proved that the way that SAMSWA works is conrect.