| With the development of campus network, university design all kinds of information management systems based on different operation systems and database management systems during different periods of information construction. So these information systems can't exchange data from one to another efficiently, and they form some "information island" which isolated each other. The primary mission of digital campus is to integrate various application data, and to establish a unified campus portal. So a platform of data exchange must be established to realize information sharing and to exchange.Starting from the problems in data exchange, this dissertation analysis some existing solutions and some main techniques used in data exchange. And a new data exchange model is proposed based on the deep research of the technique of JMS and Data Exchange. This Model can not only realize the interaction and data transmission between application systems by utilizing the asynchronous message processing mechanism in JMS but also realize data exchange between heterogeneous data sources by using XML as middle data format.The JMS middleware has the characteristic such as support asynchronous communication, the loose coupling, one-to-many communications and high reliability. XML itself has the characteristic of the platform independent, easy to expand, strong semantic and so on. So it enables the XML became the fact standard of data exchange. The data exchange model which based on JMS and XML can more easily realize the description of heterogeneous database and the data conversion, thus the model used to solve some problems existing in current data exchange.Considering the problem of the whole school data security, this dissertation proposed a kind of security measure which takes the identity authentication and the user management as the core. Finally this dissertation summarized the main work, also brings forward the improvement works on the model from the practical and perfect direction. |
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