当今基于GIS的应用已经广泛用于与地理信息相关的各行各业诸如：森林管理、城市管理、车辆导航等领域。目前开发GIS系统的技术与软件种类繁多，商业与非商业GIS软件各具特点。在建立一个GIS应用系统的时候，怎样降低GIS平台的费用，怎样选用新的技术开发GIS系统，怎样减少开发的难度与降低开发的费用，是一个值得思考的问题。在GIS开源领域，选择开源GIS软件建立GIS应用是一个不错的选择。 本文以开源Web GIS软件Geomajas为研究对象，探索Geomajas的原理与应用。主要工作包括： （1） 介绍了最新的开源GIS的发展现状，以及几种常用的开源GIS开发平台与技术，例如OpenStreetMap，GeoServer，OpenLayer等 （2） 重点研究了OSGeo的Web GIS开源项目Geomajas，分析其内部架构和关键技术。如Geomajas中使用的渲染方式与原理，以及在Geomajas中对OGC的SLD标准的实现与支持，Geomajas中使用空间数据工具Geotools，数据缓存与网格技术Infinispan等开源技术，并完成了Geomajas的中文开发文档的翻译工作。 （3） 对Geomajas与其它常见Web GIS开发平台的空间数据编辑功能实现方式进行对比分析，总结了常用的几种Web GIS 开发框架的特点。 （4） 对Geomajas的图层插件进行了扩展，实现了对我国的天地图的矢量与影像地图瓦片数据的加载功能。 （5） 详细阐述并完成了如何以 Geomajas为框架集成Geoserver，PostGIS数据库，并在此集成框架基础上开发了基于Geomajas的具有富Internet特性的温室大棚信息管理系统的Web GIS应用。 最后在全文基础上，提出本文的不足及后续研究，对基于开源GIS软件Geomajas的应用具有一定的参考和帮助意义。

Today's GIS-based application has been widely used in many fields such as managing a forest,managing a city，routing vehicles. Parallel development of commercial and non-commercial GIS, with different features. So there are a lot of technology and software to build a GIS based application, and face the difficult to establishment of a GIS application with the large costs, how to the use of new technology development a GIS and reduce the difficulty of development and the development cost is a question worth considering in practice. In GIS open source filed, open source GIS software is a good choice. In this paper, the object is study the open-source Web GIS software Geomajas, and explore Geomajas the application. Its main tasks are: (1) introduced the latest development status of open source GIS, and describes several commonly used open source GIS development platforms and technologies, such as OpenStreetMap, GeoServer, OpenLayer etc. (2) focused on the OSGeo Web GIS open source project Geomajas ，analysis of its internal architecture and key technologies. Rendering Geomajas in principle, as well as in geomajas OGC SLD standard and support for spatial data tools Geotools Geomajas in the data cache and grid technology Infinispan open source technology and has completed Geomajas the Chinese development document translation work. (3) compared Geomajas and other common Web GIS development platform for spatial data editing functions to analyze the characteristics of several popular Web GIS development framework. (4) extended layers plug-in in Geomajas using our world map vector and image loading function of the map tile data. (5) show the detail how to integrate GeoServer and PostGIS in Geomajas framework.And using Geomajas builded a Greenhouse information management system. Finally, on basis this papers of show the lack of this article and follow-up study , It can give a reference and help in the open source GIS applications.