Constants used commonly

struts.i18n.encoding : UTF-8
struts.action.extension : action,do
struts.serve.static.browserCache : true -- cache the static content
struts.configuration.xml.reload : false
struts.devMode : false -- print detailed error message on development mode
struts.ui.theme : simple -- set the style of the struts tag
struts.objectFactory : spring -- set action creation factory, used for integration of struts and spring
struts.enable.DynamicMethodInvocation : true
struts.multipart.maxSize