基于插件技术的GIS Server架构模型的设计

杨之江; 扈震; 常晓婕

doi:10.3799/dqkx.2010.059

基于插件技术的GIS Server架构模型的设计

doi: 10.3799/dqkx.2010.059

中国地质大学信息工程学院，湖北武汉 430074

基金项目:

国家科技支撑计划项目 2006BAJ15B03

城市市政基础设施管理与运营关键技术研究与示范 2006BAJ15B03

国家重点“863”项目 2007AA120503

详细信息

作者简介:
杨之江(1977-)，男，讲师，博士在读，主要从事地理信息系统及计算机图形学研究.E-mail: yangzhijiang@126.com

中图分类号: P208
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- PDF下载量: 90
- 被引次数: 0
出版历程
- 收稿日期: 2010-01-15
- 刊出日期: 2010-05-01

Design of GIS Server Model Based On Plug-in Technology

Faculty of Information Engineering, China University of Geosciences, Wuhan 430074, China

摘要

摘要: 为了提高地理信息系统(geographic information system, GIS) Server的稳定性、易开发性和扩展性，提出基于插件技术多进程模式GIS Server的解决方案.服务器模型由进程调度管理模块和执行进程组成，利用资源分配解决多用户并发操作的问题.按照执行功能作用，服务器模型分为服务层、GIS操作层、用户管理层、执行进程和地图文档层5个模块.在实现方面，根据服务器响应请求的流程将功能实现的过程分解，提出功能插件化的设计思想，使其与服务器相对独立.该模型实现了负载均衡，运行更加稳定，采用插件和Web Service技术开发应用功能，更加简单高效.
- 地理信息系统服务器 /
- 插件技术 /
- 多进程 /
- Web服务
Abstract: A solution of GIS Server in multi-process mode based on Plug-in technology is introduced in this paper to make it much steadier, and more convenient for extending. The server model is constituted with scheduler and management module and exe process, and solves the problem of simultaneous operations by multi-users with the method of assigning data resources. According to executive functions, the model is divided into five sub-modules in detail: server management level, operation level, user management level, exe process and map level. In the aspect of function realization, the author splits the process of executing functions based on the flow of responding the requests, and brings forward the design idea of packing the operations using plug-in technology, which makes the functions independent of server. This model achieves the balance load so that the server can run more steadily, and develops the applications more efficiently with plug-in technology and Web Service technology.
- geographic information system (GIS) Server /
- plug-in technology /
- multi-process /
- Web Service

HTML全文

图 1 GIS Server模型架构

Fig. 1. Frame picture of GIS Server model

下载: 全尺寸图片幻灯片

图 2 功能插件类

Fig. 2. Relationship of function plug-ins

下载: 全尺寸图片幻灯片

图 3 执行进程运行模式

Fig. 3. Running mode of the work process

下载: 全尺寸图片幻灯片

图 4 工作流程

Fig. 4. Flow chart of working

下载: 全尺寸图片幻灯片

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