【作者】 田东；

【导师】 陈蜀宇；

【作者基本信息】 重庆大学 ， 软件工程， 2004， 硕士

【摘要】 在电子政务的实施过程中会遇到诸多实际问题，特别突出的是各级政府机关已经开发或购买了满足其使用要求的应用系统或软件产品，这些系统之间由于系统体系结构、操作系统平台和数据库平台之间存在差别，造成系统间难于、甚至无法进行信息交互，从而形成了一个个的信息孤岛，在这种情况下，如果不采取一定的措施加以改善，电子政务的实施将无法利用已有的系统，如果重新建设将造成前期投资的浪费，从而失去了电子政务建设和实施的意义。 可扩展标记语言(XML)为实现安全、高效的电子政务提供了一种开放的标准，使用XML结构化的数据可以从业务规范和表现形式中分离出来，非常便利地进行交换和处理。所以它一经出现就成为新一代数据交换的标准。 本文首先深入地分析XML语言和其用于数据交换的关键技术，并结合电子政务信息系统的特点和需求，研究了XML在这些系统中的应用情况，设计出一种基于XML的电子政务系统中异构数据库系统间的数据交换模型。然后，按照程序设计的思想，在J2EE框架下，结合区县级行政服务中心信息系统的现实需求，对该模型进行了编程实现，并将其用于区县级行政服务中心信息系统中，使其既具备跨平台功能和具有很好的可移植性，同时也具备了数据交换功能，可以很好地与区内各委办局的内部办公系统进行数据交换。大大地提高了工作效率，降低人力、物力、财力的浪费，树立政府的良好形象。更多还原

【Abstract】 In the process of earring out e-governmet, we are often faced with many practical problems, especially those application system and software products ,which have many differences in system infrastructure, platforms for operating and database , what have been developed or purchased by government in all levels for their own need. Because of this , the interchange among different systems can’t be carried out, and a series of isolated information islands accumulated. If this situation can not be improved by proper measures, the implement of e-government can not use the existing system, and if we construct a new system , their will be an enormorous waste of the former investment as well as the lost meaning of the e-government construction and implementation.Extensive markup language provide an opening-standard for the satety and efficient electronic government. Because improving the weakness of the traditional data interchange, it brings the small-medium enterprise into the electronic government market. The XML-structured data can be separated from the business rule and the expression form, expediently for the data exchange and data process. So the XML is regarded as the standard of data exchange when it just appeared.Firstly, we deeply analysis the extensible markup language and it’s key technology for data exchange, combined with the characteristic and requirement of e-govemment affairs system, studied the application of XML in these system, put up a XML-based data exchange model for different database system in e-government affairs system. Secondly, we realize the model under J2EE platform aligned with the programming theory, and applied it in district-level authority administration service system. At this level, the system not only have the ability for multi-platform, but also can exchange data for different database system. Most of all, the system can link with the other department’s OA system in the area. It promote the efficiency of the government as well as put up the good image of the government.更多还原