I'm really not sure and can't help on the "parsing request" problem,
although I'm not surprised that attempting to unpack a multipart request
twice would result in problems.
One thing you could try is understand the form processing life cycle of
Wicket - so instead of using onSubmit() (because the request has been
already parsed and form fields bound) - you should try over-riding some
other method. Not sure, but maybe the "process()" method is a candidate.
I can't help saying that IMO what you are trying is over-complicating
things. In fact Wicket actually re-uses code from the apache commons
fileupload project, refactored into Wicket classes under:
org.apache.wicket.util.upload. Does that make sense?
On Tue, Sep 8, 2009 at 1:16 PM, FaRHaN <farhan.ba...@ymail.com> wrote:
> O my dear, i want to make a separate utility method that will take Request
> and other necessary information as a parameter. just like that:
>
> /************** Utitlity Method for FileUploading ********************/
> public static void doUpload(HttpServletRequest request, FileItem fileItem){
> if (ServletFileUpload.isMultipartContent(request)){
> ServletFileUpload servletFileUpload = new ServletFileUpload(new
> DiskFileItemFactory());
>
> List fileItemsList = null;
> try {
> fileItemsList = servletFileUpload.parseRequest(request);
> } catch (FileUploadException ex) {
> System.out.println(" Exception while Parsing File Upload
> Request...." + ex);
> }
>
> String optionalFileName = "";
> Iterator it = fileItemsList.iterator();
> while (it.hasNext()){
> fileItem = (FileItem)it.next();
> if (fileItem.isFormField()){
> String fieldName = fileItem.getFieldName();
> String fieldValue = fileItem.getString();
> if (fileItem.getFieldName().equals("filename"))
> optionalFileName = fileItem.getString();
> ...
> }
> }
> }
> }
> /********************* End *********************/
>
> And from Wicket Page, call this method when File uploading is required.
> public void onSubmit(){
> doUpload(httpServletRequest, fileItem);
> }
>
> This can happen or not ?
> The Problem arises while Parsing request ...
>
>
>
>
>
> ________________________________
> From: Peter Thomas <ptrtho...@gmail.com>
> To: users@wicket.apache.org
> Sent: Tuesday, September 8, 2009 1:13:22 PM
> Subject: Re: Usage of Servlets in Wicket, How ?
>
> On Tue, Sep 8, 2009 at 12:33 PM, FaRHaN <farhan.ba...@ymail.com> wrote:
>
> > I want to make it a separate API for file uploading. So that i can embed
> it
> > in any of the application regardless of the framework (wicket, JSF,
> struts
> > etc.). The only reason is that, we can use Apache Commons FileUpload API
> in
> > any of the framework.
> > Is there any workaround to do this ?
> >
> >
> >
> This is very interesting. When you say "embed it in any of the application
> regardless of the framework" what do you mean ? A tag library ? Suppose
> you have a multipart form, that contains input fields PLUS a type="file"
> field, to what URL will you POST it and have the input data also bound /
> handled ?
>
> Note that Wicket already has FileUpload built in, that too as a pure Java
> API so I'm trying to understand your end-goal better.
>
>
>
> >
> > ________________________________
> > From: Jeremy Thomerson <jer...@wickettraining.com>
> > To: users@wicket.apache.org
> > Sent: Tuesday, September 8, 2009 12:44:08 PM
> > Subject: Re: Usage of Servlets in Wicket, How ?
> >
> > Maybe if you mention the specific reason(s) that you want to use Apache
> > Commons FileUpload API rather than Wicket's built-in forms and file
> upload
> > mechanisms, someone on the list will be able to provide you with more
> help.
> > It seems that the FileUpload API is intended to help you if you have to
> > write servlets to handle forms. But with Wicket, you don't have to do
> > this. And if you use ACFU API, then you lose the rest of Wicket's
> stateful
> > form handling.
> >
> > --
> > Jeremy Thomerson
> > http://www.wickettraining.com
> >
> >
> >
> > On Tue, Sep 8, 2009 at 1:04 AM, FaRHaN <farhan.ba...@ymail.com> wrote:
> >
> > >
> > >
> > > I want to upload files through Commons FIleUpload API. As Commons
> > > FileUpload API requires HttpServletRequest for uploading files (e.g.
> > > fileItemsList = servletFileUpload.parseRequest(httpServletRequest)).
> > > Parsing HttpServletRequest is the necessary step while uploading in
> > Commons
> > > FileUpload.
> > >
> > > I have got httpServletRequest from RequestCycle. e.g.
> > ((ServletWebRequest)
> > > getRequest()).getHttpServletRequest() or
> > > ((WebRequest)requestCycle.getRequest()).getHttpServletRequest() but
> this
> > > request already being parsed automatically in RequestCycle, before
> > reaching
> > > servletFileUpload.parseRequest(httpServletRequest). So, "Request is
> > already
> > > been parsed..." exception occur.
> > >
> > > That's why i want to use Servlet's doGet(request, response) method for
> > > getting HttpServletRequest(without parsing).
> > >
> > > If not servlets, Is there any other way to handle FileUploading
> (through
> > > Apache Commons API) in wicket ?
> > >
> > > Thanks...
> > >
> > >
> > > ________________________________
> > > From: Peter Thomas <ptrtho...@gmail.com>
> > > To: users@wicket.apache.org
> > > Sent: Tuesday, September 8, 2009 11:39:58 AM
> > > Subject: Re: Usage of Servlets in Wicket, How ?
> > >
> > > Refer this:
> > >
> > >
> > >
> >
> http://cwiki.apache.org/WICKET/how-to-redirect-to-an-external-non-wicket-page.html
> > >
> > > If that doesn't help you should briefly explain what your requirement
> is.
> > > There may be a better way to achieve it within Wicket instead of
> hacking
> > > around with servlets.
> > >
> > > On Tue, Sep 8, 2009 at 10:57 AM, FaRHaN <farhan.ba...@ymail.com>
> wrote:
> > >
> > > > but how can we call it from our wicket web page ?
> > > >
> > > >
> > > >
> > > >
> > > > ________________________________
> > > > From: Jeremy Thomerson <jer...@wickettraining.com>
> > > > To: users@wicket.apache.org
> > > > Sent: Tuesday, September 8, 2009 11:10:49 AM
> > > > Subject: Re: Usage of Servlets in Wicket, How ?
> > > >
> > > > servlets are totally separate from Wicket - write a servlet and add
> it
> > to
> > > > your web.xml. See any servlet example on the web (non-Wicket
> related)
> > > for
> > > > assistance.
> > > >
> > > > --
> > > > Jeremy Thomerson
> > > > http://www.wickettraining.com
> > > >
> > > >
> > > >
> > > > On Mon, Sep 7, 2009 at 11:54 PM, FaRHaN <farhan.ba...@ymail.com>
> > wrote:
> > > >
> > > > > Hi,
> > > > >
> > > > > Is there any example in Wicket that uses Servlets (doGet() &
> > doPost()).
> > > I
> > > > > mean how can we configure Servlets in our wicket application and
> use
> > > > > doGet(request, response) & doPost(request, response) methods. I
> know
> > > > web.xml
> > > > > configuration for Servlets but how can we use doGet() & doPost()
> > > methods.
> > > > Do
> > > > > we need wicket:ids in Servlets ?
> > > > > Is there any reference for such type of example ?
> > > > >
> > > > > Thanks...
> > > > >
> > > > >
> > > > >
> > > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > >
> > >
> > >
> > >
> > >
> >
> >
> >
> >
> >
>
>
>
>
>
