1,與Light集成?
http://www.grails.org/Portal+Functionality

2,
This presentation describes a simple way to build a working framework for a user portal. This framework is built upon some very popular features in Grails and provides many examples of Grails plug-in integration and use of some of the more complex features of Grails such as integrating Ajax with Groovy Server Pages.

The presentation describes a step-by-step approach to using the convention based paradigm in Grails to create a simple User Portal. It walks through the process of creating a web flow based upon the Spring Web-Flow product included within Grails. The last topic focuses on implementing Grails user interface components and integrating them with the Grails Portal code. Each of these areas are presented by outlining the principles and the decision process involved in creating the components and then showing how to use the results of the work in a specific business case.

http://code.google.com/p/grailsportal