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Given a sessionid, is it possible to retrieve that information from wherever the session data is stored, or do I have to store the information I want in a database, and retrieve based on the sessionid?
In earlier version of the servlet spec there was a way to get all sessions but it was removed as a security risk. You can register an implementation of HttpSessionListener in web.xml (run
grails install-templatesand edit src/templates/war/web.xml to register it) and keep track of sessions that way.The App-Info plugin has this as a feature (among others). It’s disabled by default but easily enabled by adding
grails.plugins.appinfo.useContextListener = trueto grails-app/conf/Config.groovy