Research And Implementation Of OA System Based On J2EE In Shaanxi Provincial Department Of Water Conservancy

In the new century, the water conservacy is faced with a new situation, a new task, and shoulders a significant historical responsibility. In this historical transformation, we must put the water resource informatization on the first position. Constructing the general office automated system becomes the essential step in the construction of water resource informatization.With the development of information technology and the popularization of computer application, the workflow technique is paid more and more attention to. The workflow theory and its application gradually become a new research hotspot in the computer domain.This paper studies on the basis of OA project, which research goal is:(1)Developing a general workflow management system based on the J2EE frame;(2) Building up the OA system in Shaanxi Province department of water conservancy above the general workflow management system.Therefore, the research object of this paper is the design and the realization of workflow management system based on J2EE and how to build up OA system according to the service demands of Shaanxi Province water department above the workflow management system.First, this paper elaborats the existing system structure in Shaanxi Province water department and the relation between the OA system and the existing system, provides the development background and objective condition for the design of OA system. Then, it summarizes the origin, the present situation and the development tendency of workflow technique, analyzes the workflow reference model proposed by WfcMc, and discusses this system structure of the model. It proposes five standard interfaces in view of the system structure of workflow reference mode, and separately introduces the design and realization of the interfaces. In addition, it detailedly introduces the modeling process and method of workflow. Then it designs a workflow management system based on J2EE on the analysis of the workflow design core.In the fifth chapter, this paper introduces an OA application example of water department based on the workflow management system. The sequence of this paper is according to the development flow in software engineering: demand analysis, system design and realization, system implementation and function. It constructs the operation model with Petri net according to the service demands and gives anexample. This paper presents the realization method and details of this system, detailedly explains how to use the object-oriented method to analyze, and the realization details with JAVA.Finally, it elaborates the integration of OA system in water conservation information portal and summarizes the paper.