基于BlazeDS推技术的即时协同标绘系统  

REAL-TIME COLLABORATIVE PLOTTING SYSTEM BASED ON BLAZEDS PUSH TECHNOLOGY

作　　者：陶留锋[1] 邢廷炎[1] 张德品[1] 

机构地区：[1]中国地质大学北京信息工程学院北京100083

出　　处：《计算机应用与软件》2013年第9期103-106,共4页Computer Applications and Software

基　　金：国家科技支撑计划项目(2011BAH06B04,2012BAB11B01)

摘　　要：为解决传统标绘系统不能满足用户广域分布、高效并发控制、严格权限管理、即时成果协同、结果高度共享等问题,利用Flex、BlazeDS和互联网GIS服务等技术,设计并实现了地图即时协同标绘系统,介绍其系统体系架构、功能模块,以及标绘权限控制、标绘即时协同、标绘结果共享等关键技术,开发了态势图即时协同标绘系统原型。该系统利用服务器推送方案,避免了HTTP的经常链接,提高了系统稳定性和性能,并降低了带宽压力,能够满足广域分布用户群体实时协作与即时协同标绘的要求。To solve the problems of traditional plotting system that it cannot satisfy the multi-user wide-area distribution, efficient concurrency control, strict rights management, real-time results collaboration, highly sharing of results, etc. , by using the technologies of Flex, BlazeDS and internet GIS services, we design and implement a map real-time collaborative plotting system, introduce its key technologies of system architecture, functional modules, plotting permission control, plotting real-time collaboration and plotting results sharing et al, develop a prototype of situation map real-time collaboration plotting system. By utilising the push scheme of the server, the system avoids regular H3~FP link, improves system＇ s stability and performance, and reduces the bandwidth pressure. It is able to meet the requirements of wide-area distributed user groups in real-time collaboration and real-time collaborative plotting.

关 键 词：即时协同标绘 服务器推技术 互联网GIS服务 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]