private String createActionKey(Class<? extends Controller> controllerClass,
Method method, String controllerKey) {
String methodName = method.getName();
String actionKey = "";
ActionKey ak = method.getAnnotation(ActionKey.class);
if (ak != null) {
actionKey = ak.value().trim();
if ("".equals(actionKey))
throw new IllegalArgumentException(controllerClass.getName() + "." + methodName + "(): The argument of ActionKey can not be blank.");
if (!actionKey.startsWith(SLASH))
actionKey = SLASH + actionKey;
} else if (methodName.equals("index")) {