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This paper made an in-depth research on information resources and personalized service and research status of system implementation techniques, combined with the practical work of graduate design, the use of Ajax, database, network communication and ASP.NET and other technologies on information resources and personalized service system's overall architecture was design. The system uses a hierarchical...
In this paper we describe the design and implementation details of a mobile application supporting news access and virtual community interactive services, based on open technologies such as Java programming language, Java Mobile Edition (Java ME) libraries, MySQL database and an open Web server. The goal was to create an easy to use, mobile, interactive, flexible and extensible client-server solution,...
On the basis of analyzing the technical features of GWT, the integration principle of GWT and Berkeley DB Java Edition (BDJE) is researched firstly in this paper. Then a hierarchical and extensible solution of Network Teaching System (NTS) is put forwarded based on GWT. The experimental results show that the client-side of NTS is provided with widget by GWT based on Ajax, and the persistent data is...
GIS plays an irreplaceable role in the e-government information management systems and has been widely applied in the economic, national defense and social sustainable government departments. This paper presents a unified framework of the e-government GIS information platform based on the J2EE and Web service technology to create an interoperable, distributed Web mapping system. The e-government GIS...
An application system with three-tier architecture is completed. In the system architecture, the client is developed by Delphi and the application server by Java. The Application Server encapsulates the queried result to XML formatted data with JDOM toolkit and sends them to the client with Web service. The client decodes the XML data to strings with MSXMLDom decoder and encapsulates them to a ClientDataSet,...
In this paper, the problems exposed by the third generation of SCADA (supervisory control and data acquisition) based on the c-s(client-server) mode are analyzed. Then, a new distribution network SCADA based on the four-tier architecture of J2EE platform is built. Because of poor information sharing and interoperability of CORBA (common object request broker architecture) as the integration bus among...
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