SAAS模式WebGIS关键技术  

Research on Key Technology of SAAS Mode WebGIS

作　　者：何洪磊[1] HE Honglei(School of Information Engineering,Lianyungang Technical College,Lianyungang 222006,Jiangsu,China)

机构地区：[1]连云港职业技术学院信息工程学院

出　　处：《实验室研究与探索》2019年第12期16-22,共7页Research and Exploration In Laboratory

基　　金：国家自然科学基金项目(61872376)

摘　　要：提出了SAAS模式的WebGIS方案,该方案能够满足用户定制、易用性、保证服务器性能的要求。其关键技术是采用面向服务架构,将常用需求对应的服务模块化,并合理分布在服务器端和浏览器端实现。用户通过配置器定制用户界面和业务逻辑,将对应的文件存储到元数据中。浏览器端的流程控制引擎通过读取XML格式的业务规则文件,创建实例并完成用户定制的实现。最后通过两个实例验证了系统的可行性。In order to solve the contradiction between the extensive demand of WebGIS and the high development cost,the SAAS mode is proposed for WebGIS scheme.The scheme can satisfy user customization,ease of use,and guarantee the performance of the server.The key technology is to use service-oriented architecture to modularized services that are commonly used,and distribute them reasonably in server and browser side.The user customizes the user interface and business logic through the configurator,and stores the corresponding files into the metadata.The process control engine on the browser side creates instances and completes customized implementations by reading the business rules files in XML format.Finally,the feasibility of the system is verified by the establishment of two examples.

关 键 词：软件即服务 互联网地理信息系统 可定制 负载均衡 面向服务架构 

分 类 号：TP311.52[自动化与计算机技术—计算机软件与理论]