【作者】 翟石艳；

【导师】 孔云峰； 付品德；

【作者基本信息】 河南大学 ， 地图制图学与地理信息工程， 2009， 硕士

【摘要】 互联网技术为城市地理空间数据的共享提供了广阔的舞台,但基于Web的元数据查询、数据下载和格式转换,或企业级数据库访问等数据共享方式存在不足。城市地理空间数据种类多、数据量大、来源部门广泛,数据模型、结构和格式的差异性,使得数据共享仍是我国数字城市建设中面临的重大挑战。随着Web服务技术、面向服务的架构(SOA)以及Mashup技术的发展,本文尝试利用地理信息服务技术,构建城市地理空间数据共享框架,并讨论相关的应用开发方式,期望为数字城市建设提供新的共享服务和应用开发途径。本文的研究思路是:基于Web技术、SOAP协议、REST协议和Wxs标准,参考GIS软件产品的最新发展,采用面向服务的架构(SOA),讨论城市地理空间数据共享框架体系;利用ESRI的ArcGIS Server发布地理信息服务,探讨基于Web服务的应用开发方式;最后,采用.net、Flex和JavaScript等技术方案,开发GIS应用,验证基于服务的地理空间数据共享的可行性和有效性。基于Web服务的城市地理数据共享框架体系的内容,主要包括地理信息服务的制作、注册、发布、调用。地理信息服务通常包括地图服务、地理编码服务、空间处理服务、影像服务、空间数据服务等。本文以ESRI的ArcGIS9.3软件为平台,构建符合WxS的地理信息服务,并发布、注册。在讨论相关地理信息服务集成方法技术的基础上,采用JavaScript、Flex和.NET Web ADF的方法,集成已发布的服务。以“基于Web服务的城市地理空间数据服务框架”为基础,本文设计和开发了两个应用案例,即基于Web服务的城市安全应急系统和基于Web服务市政公共设施管理系统,分别采用.NET、JavaScript和Flex的方法,集成各相关服务。验证了本文提出的基于Web服务的城市地理空间数据服务框架的有效性和可行性。本研究表明:基于Web服务的城市地理空间数据服务框架是可行的、有效的。地理信息服务的应用开发方式灵活、简单,对数字城市建设中城市地理空间数据共享问题的解决具有借鉴价值。更多还原

【Abstract】 The Internet technology has provided the broad stage for urban geospatial data sharing, but metadata inquiry, data downloading and format conversion based on Web, and enterprise database sharing exist insufficiencies. The urban geospatial data has several features, such as large kinds, big quantity, widespread origination, difference among the data model, the structure and the form, which cause that data sharing is still the great challenge that Digit Urban Construction must face. Along with the Web service technology, SOA as well as the Mashup technology developing, this article attempts to construct the urban geospatial data sharing frame by geography information service technology, and discusses the related application development way. The above frame and technology will provide new way for the digital urban construction data sharing.This article’s research way is as following: Firstly, discussing the urban framework of geospatial data-sharing system which bases on Web technologies and WxS standards, refers to the latest GIS software product, and adopts the service-oriented architecture (SOA).Secondly, publishing the geographic information service by the ESRI’s ArcGIS Server GIS and exploring the Web services-based application development approach. Finally, developing the GIS applications by the virtue of net、Java and JavaScript technology, meanwhile verifying that whether the frame of service-based geospatial data sharing is feasible and effective.The geospatial data sharing framework’s content includes the production of geographic information services, registration, release, call. Geographic information services generally include mapping services, geocoding services, geoprocessing services, image services, geodata services. This paper builds, publishes and registers geography information services by the platform of ArcGIS9.3 software. This paper integrates several services on the use of JavaScript and. NET Web ADF methods.Under the support of "urban-based Web services framework for geo-spatial data services", this paper designs and develops two application cases, that is, city-based Web services security systems and emergency services, city-based Web services management system for municipal public facilities, respectively. It verifies that the proposed framework of Web services-based geospatial data services is effective and feasible.This study shows that: the city-based Web services framework for geospatial data services is feasible and effective. The development way for GIS application services is flexible and simple, beneficial for digital cities geospatial data sharing.更多还原