MessageBoxPortlet.java 文件源码

@Override
public void processAction(ActionRequest req, ActionResponse resp)
      throws PortletException, IOException {

   // the only action for this portlet is to reset the stored messages

   String actionName = req.getParameter("action");
   logger.fine("MBP: Resetting messages. numMsgs = 0,  actionName = " + actionName);

   ArrayList<String> msgs = new ArrayList<String>();
   StringBuffer sb = new StringBuffer();
   sb.append("<p style='margin:2px 5px 2px 5px; color:#00D;"
         + " background-color:#AAF;'>");
   sb.append("Reset - No messages.");
   sb.append("</p>");
   msgs.add(sb.toString());

   resp.setRenderParameter(PARAM_NUM_MSGS, "0");
   req.getPortletSession().setAttribute(ATTRIB_MSGS, msgs);
}