J2EE architecture has been one of the first choices in e-business and other web applications nowadays. In this thesis, an enterprise management system of three tires of J2EE architecture has been studied and designed in detail. The advanced three-tire architecture in the software industry is used in the Document Management system of middle court of Suzhou. Based on J2EE architecture we construct the whole manage system. In the developing process, a developing instrument Eclipse, which is very popular recently, and the professional technology are used. The design model of this system is SSH (Struts+spring+Hibernate). Every module in this system keeps highly reusability. The coupling between every module is quite weak; in that case the system surely has highly expansibility and maintainability.
Firstly, the fundamental knowledge about the technology which is used when designing the system is discussed. Also this paper indicates the requirements and designing of the system. And then, the thesis presents the operation range of this system. On the basis of these basic requirements, the paper gives analysis of the systemic concrete requirements. Secondly, the thesis expatiate the schema of design as to the holistic framework, and it also explains the hierarchy of module and the flow of process. Thirdly, as for management of authority and role module, the thesis presents particular and configurable design, logical flow, which are the foundation of programming. Finally, the thesis lists the testing results of management of authority and role module using the methods of concrete monocular test, integrated test and systemic test,