文档介绍：基于ArcIMS Java Connector与Ajax技术构建林业WebGIS
冯仲科1 李亚东1 王佳1
(1北京林业大测绘与3S技术中心)
摘要:在林业WebGIS开发中由于传统Web系统的响应机制下客户端与服务器的交互必须以提交页面的方式进行,这造成服务器不仅无法对单项数据进行及时处理,而且在系统资源与效率上造成了不必要的浪费。Ajax(Asynchronous JavaScript and XML)技术的运用能从根本上解决这一问题。本文从ArcIMS Java Connector(ESRI公司的ArcGIS系列产品的WebGIS开发包)、Ajax技术和林业WebGIS三者的特性出发阐述了基于ArcIMS Java Connector与Ajax技术构建林业WebGIS的先进性与合理性,给出了将ArcIMS Java Connector、Ajax技术、林业业务逻辑三者相结合开发林业WebGIS的组织模型及实现方法。实现了林业WebGIS的①字段的时时服务器验证②记录的无刷新分页显示③无刷新调取GIS数据④实现桌面式GUI可拖拽界面等传统方式所无法实现的功能。在林业WebGIS上实现了将两种技术成功的集成的例子。
关键词:ArcIMS Java Connector;Ajax;林业;WebGIS
Feng Zhongke Li Forestry WebGIS with ArcIMS Java Connector and Ajax. Institute of GIS, RS & GPS, Beijing Forestry University, 100083, P. R. China.
Abstract: Due to the response mechanism of the tradition Web system in the development of the forestry WebGIS, the interaction between the client and server must be submitted to the page, this has lead to the server not only could not make a process to the single data timely, but also brought a unnecessary waste to the system resources and efficient. The application of the Ajax (Asynchronous JavaScript and XML) technology could resolve the problem fundamentally. This paper is based on the feature of ArcIMS Java Connector (The WebGIS developed kit of pany’s ArcGIS series), Ajax technology and Forestry WebGIS, and explained the rationality and the advancement of cons