StandardContext.java 文件源码

@Override
public boolean fireRequestInitEvent(ServletRequest request) {

    Object instances[] = getApplicationEventListeners();

    if ((instances != null) && (instances.length > 0)) {

        ServletRequestEvent event = 
                new ServletRequestEvent(getServletContext(), request);

        for (int i = 0; i < instances.length; i++) {
            if (instances[i] == null)
                continue;
            if (!(instances[i] instanceof ServletRequestListener))
                continue;
            ServletRequestListener listener =
                (ServletRequestListener) instances[i];

            try {
                listener.requestInitialized(event);
            } catch (Throwable t) {
                ExceptionUtils.handleThrowable(t);
                getLogger().error(sm.getString(
                        "standardContext.requestListener.requestInit",
                        instances[i].getClass().getName()), t);
                request.setAttribute(RequestDispatcher.ERROR_EXCEPTION, t);
                return false;
            }
        }
    }
    return true;
}