【摘要】：最近幾年來,隨著地理信息產(chǎn)業(yè)的高速發(fā)展,網(wǎng)絡(luò)地理信息系統(tǒng)(Web GIS)間的平臺(tái)多樣性和數(shù)據(jù)存儲(chǔ)異構(gòu)性問題日益突出,多種Web GIS平臺(tái)對(duì)聯(lián)動(dòng)協(xié)作的需求也日益增加。要解決這些問題,需要實(shí)現(xiàn)標(biāo)準(zhǔn)的地圖數(shù)據(jù)共享和互操作方式,選擇一種與平臺(tái)和數(shù)據(jù)存儲(chǔ)結(jié)構(gòu)無關(guān)的技術(shù)。在學(xué)習(xí)和理解OGC-GIS標(biāo)準(zhǔn)的基礎(chǔ)上,基于Spring框架和ICE分布式框架等技術(shù)手段,本文設(shè)計(jì)并實(shí)現(xiàn)了一個(gè)分布式網(wǎng)絡(luò)地圖服務(wù)平臺(tái),該平臺(tái)包括地圖服務(wù)子系統(tǒng)、地圖服務(wù)組織與管理子系統(tǒng)和集群監(jiān)控與管理子系統(tǒng)。本文的主要工作如下:1.在分析分布式網(wǎng)絡(luò)地圖服務(wù)平臺(tái)的總體需求與設(shè)計(jì)目標(biāo)的基礎(chǔ)上,提出了地圖服務(wù)平臺(tái)由地圖服務(wù)子系統(tǒng)、地圖服務(wù)組織與管理子系統(tǒng)和集群監(jiān)控與管理子系統(tǒng)三個(gè)子系統(tǒng)組成的方案。分別介紹了地圖服務(wù)平臺(tái)總體架構(gòu)(邏輯架構(gòu)和物理架構(gòu))和各個(gè)子系統(tǒng)的功能概述。2.針對(duì)地圖服務(wù)子系統(tǒng),本文主要設(shè)計(jì)并實(shí)現(xiàn)了Web服務(wù)層�；贜ginx服務(wù)器HTTP過濾模塊和第三方模塊實(shí)現(xiàn)訪問控制模塊、緩存模塊和負(fù)載均衡模塊,確保了地圖服務(wù)請(qǐng)求的高效路由�；赟pring MVC框架、OGC-GIS地圖服務(wù)標(biāo)準(zhǔn)和ICE開發(fā)框架設(shè)計(jì)并實(shí)現(xiàn)了地圖服務(wù)發(fā)現(xiàn)模塊和OGC-GIS Web地圖服務(wù)組件,保證了經(jīng)過路由的地圖服務(wù)請(qǐng)求得到快速準(zhǔn)確的響應(yīng)。3.針對(duì)地圖服務(wù)組織與管理子系統(tǒng),提出數(shù)據(jù)源、服務(wù)實(shí)例、服務(wù)空間三個(gè)抽象概念,并基于Spring MVC框架設(shè)計(jì)并實(shí)現(xiàn)了對(duì)數(shù)據(jù)源、服務(wù)實(shí)例和服務(wù)空間的有效組織和管理。4.針對(duì)集群監(jiān)控與管理子系統(tǒng),將對(duì)各類服務(wù)器的監(jiān)控分為Service模塊和Client模,Service模塊是部署在被監(jiān)控機(jī)器上的后臺(tái)進(jìn)程,等待Client模塊的連接和監(jiān)管指令,各類服務(wù)器監(jiān)管的Client模塊集成到集群監(jiān)管Web應(yīng)用程序中,由Web應(yīng)用程序統(tǒng)一對(duì)外提供HTTP服務(wù)接口�；谝陨戏⻊�(wù)平臺(tái)的設(shè)計(jì)與實(shí)現(xiàn),本文在實(shí)驗(yàn)室環(huán)境中對(duì)平臺(tái)進(jìn)行了OGC-GIS地圖服務(wù)、地圖服務(wù)組織與管理和集群監(jiān)控與管理的功能測(cè)試,說明分布式網(wǎng)絡(luò)地圖服務(wù)平臺(tái)實(shí)現(xiàn)了標(biāo)準(zhǔn)的地圖數(shù)據(jù)共享和互操作,具有良好的使用效果。
[Abstract]:In recent years, with the rapid development of geographic information industry, the platform diversity and data storage heterogeneity between (Web GIS) are becoming more and more prominent, and the demand for linkage cooperation between various Web GIS platforms is also increasing. In order to solve these problems, it is necessary to realize standard map data sharing and interoperation, and select a technology independent of platform and data storage structure. On the basis of learning and understanding OGC-GIS standard, based on Spring framework and ICE distributed framework, this paper designs and implements a distributed network map service platform, which includes map service subsystem, map service organization and management subsystem and cluster monitoring and management subsystem. The main work of this paper is as follows: 1. Based on the analysis of the overall requirements and design objectives of the distributed network map service platform, a scheme is proposed, which consists of three subsystems: the map service subsystem, the map service organization and management subsystem and the cluster monitoring and management subsystem. This paper introduces the overall architecture of map service platform (logical architecture and physical architecture) and the functional overview of each subsystem. 2. Aiming at the map service subsystem, this paper mainly designs and implements the Web service layer. The access control module, cache module and load balancing module are implemented based on Nginx server HTTP filtering module and third party module, which ensures the efficient routing of map service requests. Based on Spring MVC framework, OGC-GIS map service standard and ICE development framework, the map service discovery module and OGC-GIS Web map service component are designed and implemented, which ensures the fast and accurate response of the routing map service request. Aiming at the subsystem of map service organization and management, three abstract concepts of data source, service instance and service space are put forward, and the effective organization and management of data source, service instance and service space are designed and implemented based on Spring MVC framework. Aiming at the cluster monitoring and management subsystem, the monitoring of all kinds of servers is divided into Service module and Client module. Service module is the background process deployed on the monitored machine, waiting for the connection and supervision instruction of Client module. The Client module supervised by all kinds of servers is integrated into the cluster supervised Web application program, and the HTTP service interface is provided by Web application program. Based on the design and implementation of the above service platform, this paper tests the functions of OGC-GIS map service, map service organization and management and cluster monitoring and management in the laboratory environment, which shows that the distributed network map service platform realizes standard map data sharing and interoperation, and has a good use effect.
【學(xué)位授予單位】：西安電子科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2016
【分類號(hào)】：P208;TP393.09

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