【作者】 段智敏；

【导师】 王如龙； 金敏；

【作者基本信息】 湖南大学 ， 软件工程， 2008， 硕士

【摘要】 本文首先研究了数字化校园、面向服务架构的理论和发展现状,并结合长沙民政职业技术学院的数字化校园建设项目,以“服务型”为主线,分析了目前校园网应用现状及存在的问题,从系统结构、硬件设备、网络层次结构、软件架构、安全体系等各个环节对“服务型数字化校园”进行了系统设计和充分论证,提出了基于服务型数字化校园的“1+N”应用平台资源整合的建设方案。本文的研究重点包括基于Portlet的信息门户、基于Web Services的身份认证、基于SOA的数据交换中心、基于LDAP的用户集中管理四个方面。根据校园信息门户工作方式的需要,采用Portlet技术,实现了统一信息门户,有效整合了校园各类异构系统,解决了系统集成、信息整合和个性化信息服务等问题。采用“浏览器——Web服务器——目录服务器”三层B/S结构,通过SAML、WS-Security等安全规范和标准,实现统一身份认证,保障服务间的信任及消息的可靠传输。用户客户端通过网关认证、802.1x认证和分布式认证等认证技术登录门户站点,门户利用Web Services服务端提供的明文、加密或MD5-challenge三种认证方法,根据LDAP服务器统一存储的用户资料,响应用户的登录请求。利用JMS、Web Services、ESB等SOA核心技术,实现数据交换平台及消息服务、数据传输服务等核心构件的主要功能,通过抽象模板映射原理,建立源系统和目标系统的数据映射关系,根据映射模板来实现异构数据的交换与信息共享。采用LDAP信息模型描述部门和人员信息,建立统一用户管理系统,实现校园网用户权限的分级、分层管理,解决了用户数据同步、大容量查询和分布式复制信息的问题。通过整合应用程序与信息系统中的业务流程,充分利用现有硬件资源,将学校内外部各种服务有机联结,逐步在数字化校园业务中进行整合扩散,将原来的单一服务转向多元化服务。采用系统安全和统一信息门户策略,实现了统一身份认证与管理、统一数据交换和统一用户管理三大功能,最终实现以校园一卡通为中心、以系统应用平台为核心的随需应变的服务型数字化校园。更多还原

【Abstract】 Firstly,this thesis discussed the researched status quo of the digital campus and the service oriented architecture. Combined the digital campus construction item of Changsha Social Work College,it analysed the application status quo and existent question of the current campus internet with the ptimary clue of the service digital campus. It contrived systematically and demonstrated sufficiently the service digital campus from the various tache of system framework,hardware equipment,network layer framework,software architecture,security system and so on,bringed forward the construction scheme of the“1+N”application platform resource integration based on the service digital campus.The researchful emphasis of this thesis inclued information portal based on porlet and identity authentication based on Web Services,data exchange center basd on SOA and user concentration management based on LADP.According to the need of the campus information portal work mode,adopted porlet technology,realized the uniform information portal,effectively integrated each campus heterogeneous system,resolved system integration,information integration and individual information services.Adopted“browser-Web server-catalogue server”three tiers B/S structure, overpassed the secure standard of SAML,WS-Security and so on,realized uniform identity authentication,guaranteed faith between services and the credibility of message transmission. Clients entered portal site by these authentication technologies of gateway authentication,802.1x authentication and distributed authentication and so on. Portal used these three authentication ways:plain text,encrypted text or MD5-challenge,responded the user’s enterance request according to the user’s data stored by LDAP server.Utilized Realized the functions of the nuclear components by using these SOA nuclear technologies of JMS,Web Services,ESB and so on, for example the massage service on the data exchange platform,data transmission service and so on, established the data mapping relation between the oriented system and the target system via the mapping principle of the nonfigurative cyclostyle,realized data exchange and information share according to the mapping cyclostyle.Described the department and personnel information by using LDAP infonmation model,estalished UUMS,realized the classification and delamination management of user popedom in the campus internet,resolved these problems of user data synchronization,huge capacity inquisition,distributed and copied information.By integrating the operation flow between the applied procedure and information system,utilized sufficiently existing handware resourse,combined each service in and outside the campus,integrated and diffused gradually in the digital campus operation,changed the primary single service to mulriple services. Adopted the strategy of system security and uniform information portal,realized three functions of uniform identity authentication and management,uniform data exchange,uniform user management,established the service digital campus in the center of the packaged campus card and the system application platform with requirment.更多还原