It would also appear that the request parameters are only revealed once the ActionForm has been populated.
i.e. my reset method exploded but when I commented it out the validate worked fine. -----Original Message----- From: Kris Schneider [mailto:[EMAIL PROTECTED]] Sent: 19 November 2002 13:39 To: Struts Users Mailing List Subject: Re: Loosing my parameter in the multipart request If the request content type isn't application/x-www-form-urlencoded, then the getParameter family of methods won't work. However, I'm guessing that Struts will handle this for you if you make userAction a property on an ActionForm. Your app logic may need to change in that case since Struts will populate the form *after* reset has been called. In other words, you'd do something like this in your Action: UploadForm upload = (UploadForm)form; if (Constants.STAGE_ACTION_METHOD.equals(upload.getUserAction())) { ... } Quoting "Murray, Christopher" <[EMAIL PROTECTED]>: > Hey there guys n gals, > > I seem to be loosing a parameter of my request when I submit a multi-part > form. > > In the page I have a, > > <input type="hidden" name="userAction"/> > > this is written to by a call to, > > <a > href="javascript:submitFormDispatch('UploadForm','performUpload')">LINK</a> > > which calls, > > function submitFormDispatch( formname, value ) > { > var form = document.forms[ formname ]; > var elements = form.elements; > > elements[ 'userAction' ].value = value; > alert("userAction =" + value); > form.submit(); > } > > Now I know this is working because the alert pops up to tell me. > > When the reset method is called in the ActionForm I get a null pointer > exception because no parameter is found for the action mapping set in the > struts-config.xml, > > <action path="/.../upload" > type="com...UploadAction" > name="UploadForm" > scope="session" > validate="true" > input="/.../upload.jsp" > parameter="userAction"> > <forward name="displayInputForm" > path="/.../upload.jsp"></forward> > <forward name="confirmUpload" > path="/.../Upload_confirmed.jsp"></forward> > <forward name="fail" path="/.../error"/> > </action> > > And then in the form I've been using, > > public void reset(ActionMapping mapping, HttpServletRequest request){ > > FWLog log = FWLogManager.getLog("UploadActionForm"); > log.debug("Entering UploadActionForm.reset"); > > System.out.println("mapping.getParameter() = " + > mapping.getParameter()); > System.out.println("request.getParameter(mapping.getParameter()) = > "); > System.out.println(request.getParameter(mapping.getParameter())); > > System.out.println("request = " + request.toString()); > > if > (request.getParameter(mapping.getParameter()).equals(Constants.STAGE_ACTION_ > METHOD)){ > > this.emailText = null; > contactId = null; > log.debug("email text has been reset."); > } > > log.debug("Entering UploadActionForm.reset"); > } > > When all this executes this outputs > > mapping.getParameter() = userAction > request.getParameter(mapping.getParameter()) = > null > request = org.apache.struts.upload.MultipartRequestWrapper@799ca4 > > java.lang.NullPointerException > at com...web.action.UploadActionForm.reset(Unknown Source) > > Guessing that a Multipart request is a different request object. > > Have you got any suggestions ? > > Is this possible ? > > -- > To unsubscribe, e-mail: > <mailto:[EMAIL PROTECTED]> > For additional commands, e-mail: > <mailto:[EMAIL PROTECTED]> > -- Kris Schneider <mailto:[EMAIL PROTECTED]> D.O.Tech <http://www.dotech.com/> -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]> -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
