一种移动开发中间件的设计和实现_易力.pdf

第27 卷 第23 期 计算机工程与设计 2006 年12 月 Vol . 2 7 N o . 2 3 Computer Engineering and Design Dec. 2006 一种移动开发中间件的设计和实现 易 力， 张素伟 ( 华北计算技术研究所，北京 100083) 摘 要：移动开发正成为一个迅速发展的领域，然而由于移动环境的种种限制，为开发移动应用带来巨大挑战。中间件是一 种行之有效的处理分布式异构平台的技术，可用于解决移动开发中碰到的很多问题。在J2EE 架构之上提出了一种移动应用 系统框架，并基于这种框架在传统中间件的基础上设计和实现了一种移动开发中间件。这种中间件能够屏蔽移动设备和运 行平台的多样性，并能够处理移动网络的延迟和出错，使得移动系统的开发与在普通网络环境上一样便捷，从而达到提高 移动应用开发效率的目的。 关键词：移动开发; 中间件; J2EE; 可扩展标记语言; 3G; 无线二进制运行环境 中图法分类号：TP311 文献标识码：A 文章编号：1000-7024 (2006) 23-4504-03 Design and implementation of mobile-developing middleware YI Li, ZHANG Su-wei (North China Institute of Computing Technology, Beij ing 100083, China) Abstract ：Mobile developing is a rapidly growing market sector. However, the mobile environment imposes a number of challenges to users and service providers when comparing with fixed, wired network. As an effective technique to handle the diversity of distribute systems, middleware can solve many problems in mobile developing. A framework of mobile application based on J2EE is proposed. Based on this framework and traditional middleware, a mobile-developing middleware is designed and implemented. This middleware can shield the diversity of the mobile phones and run-times, deal with the delay and the faults of the mobile network and make the deve- loping mobile systems as simple as in common network. As a result, it can achieve the purpose of improving the efficiency of the mobile software developing. Key words ：mobile-developing; middleware; J2EE; XML; 3G; BREW 0 引 言 1 关键技术 随着移动通信网络的发展和个人移动通信设备的普及， 1.1 移动开发技术 尤其是3G 网络的建设和智能手机的出现，使得用各种移动设 在第二代移动通信时代，主要提供的是语音服务，也有