【作者】 周密；

【导师】 杜中军；

【作者基本信息】 四川大学 ， 计算机软件与理论， 2005， 硕士

【摘要】 论文以“四川省自学考试业务管理信息系统”项目为背景,介绍了项目中实施的数据传输系统Glide 的开发过程和方法。数据传输系统Glide 经历了基于FTP 和基于Web Service 这两个技术版本,因为基于FTP 技术的版本存在防火墙包过滤和信息安全等问题,基于Web Service 的版本无法为各个客户端保存状态和实现断点续传,并且无法平衡负载。因此论文提出了基于网格技术的数据传输系统Glide,从而克服以上方法的不足。论文详细阐述了基于网格技术的数据传输系统Glide 的体系结构和实现方法,并编程实现了基于网格技术的数据传输系统Glide。同时对基于FTP、基于Web Service 和基于网格的三种传输版本进行了测试和对比,结果表明:基于FTP 的传输版本传输速度最快,其次是基于Web Service 的传输版本,基于网格传输版本的传输速度最慢,其中后两个版本相差不大,第1 种版本传输速度大约是后两个版本的50 倍,这与理论分析是完全一致的。更多还原

【Abstract】 Under the background of "Sichuan Self-Examine Management System" project, this paper introduces the developing processes and methods of Data Transfer System (Glide) implemented in the project. Data Transfer System (Glide) updated gradually from the version based on FTP and the version based on Web Service, and for that there exist problems such as firewall package filtering and information-security in the version based on FTP, and for that the version based on Web Service can not keep state for each client and can not realize Breakdown Point Relay and can not balance the loading. So this paper puts forward Data Transfer System (Glide) based on the Grid to overcome the shortcomings mentioned above. This paper demonstrates in detail the architecture and implementing methods of Data Transfer System (Glide) based on the Grid. In the same time, the three versions based on FTP, Web Service, and Grid were tested and compared, and the result shows: the transfer speed of version based on FTP is the highest, and the version based on Web Service is the second highest, and the slowest one is the version based on Grid. The speed difference of the last two versions is small. The transfer speed of the first version generally is fifty times of speeds of last two versions, and this result is completely the same with theory analysis.更多还原