I was found this for RequestProcessor
protected boolean processPreprocess( HttpServletRequest request,
HttpServletResponse response){
boolean continueProcessing = true;
HttpSession userSession = request.getSession(false);
// Check to see if there's a session for the user that wasn't just created
if ( userSession == null || userSession.isNew() ){
continueProcessing = false;
response.sendRedirect( "/login.jsp" );
}
// Tell the RequestProcessing to continue processing the request or not
return continueProcessing;
}
And explanation is:
"The manner in which Example 9-3 specifies the path in the sendRedirect()
method is not the best approach. This redirect would only work if the
example was running as the default web application and there was a login.jsp
page in the root directory. It was done this way to keep the example simple.
A better approach would be to retrieve the ActionForward for the login page
and use the path from it in the sendRedirect() method. That way, if the
actual page changed for the forward, this method doesn't have to be
modified."
How can I get ActionForward to make something like this:
-actionMapping.getInputForward()
-actionMapping.findForward("homeAction")
...........
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