<constant name="struts.action.extension" value="action"></constant> ? ?<constant name="struts.ognl.allowStaticMethodAccess" value="true" /> ? ? ? ?<constant name="struts.custom.i18n.resources" value="message"></constant> ? ?<constant name="struts.i18n.encoding" value="UTF-8"></constant><constant name="struts.ui.theme" value="simple"></constant> <constant name="struts.enable.DynamicMethodInvocation" value="true"></constant> <constant name="struts.configuration.xml.reload" value="true"></constant> <constant name="struts.devMode" value="true"></constant> <constant name="struts.serve.static.browserCache" value="false"></constant>