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Use a DispatcherListener to get hooked up to event when a Struts2 Dispatcher gets initalized and destroyed. This is a useful place to associate customizable components like ConfigurationManager with a Dispatcher.
static { Dispatcher.addDispatcherListener(new DispatcherListener() { public void dispatcherInitialized(Dispatcher du) { // do something to Dispatcher after it is initialized eg. du.setConfigurationManager(....); } public void dispatcherDestroyed(Dispatcher du) { // do some cleanup after Dispatcher is destroyed. } }); }