How to set up struts 1.1 message pages

1. Save your messages in ActionMessages.
   
final ActionMessages errors = new ActionMessages();
errors.add(ActionMessages.GLOBAL_MESSAGE, new ActionMessage("ControlErrMessage", errMessage));

   a. ActionMessages.GLOBAL_MESSAGE is a special key in ActionMessages mapping, don't change it
   b. ControlErrMessage is the key defined in application.properties
2. Add ActionMessages Object into HttpServletRequest

request.setAttribute(Globals.MESSAGE_KEY, errors);

a. Globals.MESSAGE_KEY is fixed value. It's used in JSP (the id value of html:messages)
3. Show your message in JSP by using tag
   
＜html:messages id="message" message="true"＞
    ＜bean:write name="message"＞
＜/html:messages＞