J2EE平台技术在气象信息系统中的应用研究

针对气象信息系统在整合现有数据资源，构建统一的信息平台时的要求，分析了J2EE对于开发多层结构气象信息系统的适应性，搭建了基于J2EE的气象信息系统的基本结构，利用JD-BC技术对异构、分散数据库进行统一管理，并运用JAAS和数字加密技术加强了信息共享过程中系统和数据信息的安全，讨论了J2EE在建立分布、动态的气象信息系统中的应用。

J2EE''''s Application to the Meteorological Information System

To accommodate to new requirements of weather services, the integration between the current different application systems and databases should be enforced, and the search of data memorized and the share of data information also should be enhanced. Aiming at the demand in integrating the existing data resources,and in conceiving the uniform information platform,we evaluate the applicability of J2EE in building the multi-layer meteorological information system, set up the basic structure of the system based on J2EE, and utilize JDBC to put up the consolidated operation among the isomerous and dispersive databases. By means of JAAS and electric signature, we strengthen the security of the whole system and data in the process of information sharing, and discuss the application of J2EE technology in constructing the distributed and dynamic meteorological information system.