| 其他摘要 | Through information integration, Portal provides a unified platform for users to access rich information resources. With the widespread use of Portal, simply providing the visit entrance can not meet the demand. Effective management is needed, so that the information in Portal can be timely and accurately accessed and the maintenance costs can be reduced.
Portal is a system of B/S structure. The information provided by Portal is accessed through the web, which can be collectively referred to as Web Content. Web Content is layered, self-describing and dynamic variational. It’s not like the data in relational database, which have a rigid structure. So the Web Content is structured, but not fully structured. To be semi-structured is the most important feature of Web Content. The management of Web Content includes content creation, durable storage, auditing, publishing, content presentation, security access control and so on.
In this paper, we research on the technology of Web Content Management in Portal, and mainly focus on four aspects. First, based on the analysis of Web Content, we present a “type-content-presentation” model for Web Content which makes the content type, content itself and content presentation separately. Second, as the Web Content is semi-structured, XML is used for durable storage. Third, the presentation manner is achieved by means of templates. Using the templates and the presentation mechanism provided by Portal, the Web Content is presented in Portlets and Portal Pages. Fourth, the security access control of Web Content is based on roles and groups. Permissions are granted to groups through roles, so that unified permission management can be achieved. The technologies all above have been applied to OncePortal, and implemented in the related components. |
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