【作者】 李红喜；

【导师】 张英俊；

【作者基本信息】 大连海事大学 ， 交通信息工程及控制， 2004， 硕士

【摘要】 本文针对当前航运业信息化建设所急需解决的问题，即海洋空间信息不能共享的问题，提出了建立海洋空间信息服务平台的思想。通过对目前使用的各种分布式信息系统体系结构的分析，结合航运业信息系统的特点，提出采用SUN公司制订的分布式企业级信息系统的J2EE规范作为本信息服务平台的体系结构基础。论文设计了海洋空间信息服务平台的体系结构，根据平台中海洋空间数据的规模，提出了两种空间数据存储模式，即数据文件集模式和关系数据库模式，并分别给出了相应的存取机制。论文研究了海洋空间信息服务平台的实现方法，并通过编程验证了平台设计方案的合理性。 海洋空间信息服务平台的任务就是把海洋基础地理数据、专题数据和航运业务数据融入到J2EE的体系结构中，建立综合的信息服务平台，实现多类海洋空间信息和业务信息的集成和共享。由于采用了J2EE规范的EJB组件来实现数据服务组件和数据管理组件，平台在可伸缩性、互操作性和灵活性上都有很好的技术基础。更多还原

【Abstract】 Aiming at the urgent problems in present constructions of shipping information system, namely the ocean spatial information cannot be shared, this paper presents the thought of building an ocean spatial information service platform. By means of analyzing the architecture of various distributed information systems that are used now, combined with the characteristics of shipping information system, put forward to employing J2EE specification designed by Sun Company, which used distributed enterprise information system as the base of this platform architecture. This paper designs the architecture of this platform. According to the scale of ocean spatial data in the platform, it presents two organizing spatial data model-data file model and relational database model, and gives each of them storage mechanism accordingly. This paper also studies the way to realize this platform and tests the rationality of the design scheme for this platform through experiment programming.The aim of this ocean spatial information platform is to put ocean based geographic data, theme data and ocean business data into J2EE architecture, found a comprehensive information service platform and realize the integration and share of the various ocean spatial information and business information. Due to adopt the EJB of J2EE to achieve data service component and data managament component, the platform has a better technical basis in scalability, interoperability and flexibility .更多还原