On Tue, 19 Nov 2002, Murray, Christopher wrote:
> Hey there guys n gals,
>
> I seem to be loosing a parameter of my request when I submit a multi-part
> form.
Yes, this is a bug. A fix is already in the works. Thanks for submitting
the bug report to Bugzilla.
--
Martin Cooper
>
> 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 ?
>
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