You have to set the name of the textbox otherwise it won't be addressable on
the server side.
Example:
private final FormPanel formPanel = new FormPanel();
private final FileUpload fileUpload = new FileUpload();
private final TextBox textBox = new TextBox();
private final Button uploadButton = new Button("Upload");
textBox.setName("text");
FlexTable flexTable = new FlexTable();
flexTable.setWidget(0, 0, fileUpload);
flexTable.setWidget(1, 0, uploadButton);
flexTable.setWidget(2, 0, textBox);
formPanel.setAction("URL HERE");
formPanel.setEncoding(FormPanel.ENCODING_MULTIPART);
formPanel.setMethod(FormPanel.METHOD_POST);
formPanel.setWidget(flexTable);
Now, on the server side using commons-fileupload:
final DiskFileItemFactory factory = new
DiskFileItemFactory(maxFileSizeBytes, tempDir);
final ServletFileUpload upload = new ServletFileUpload(factory);
final List<FileItem> items = (List<FileItem>) upload.parseRequest(request);
for (FileItem item : items) {
if (item.isFormField()) {
logger.info(item.getFieldName()+" "+item.getString());
} else {
// process the file bytes
}
}
You should see it print your textbox...where item.getFieldName() will return
"text"
Regards,
Davis
On Fri, Oct 23, 2009 at 12:19 PM, YoeZ <[email protected]> wrote:
>
>
> yes, of course I put the multipart in client code:
>
> form.setAction(GWT.getModuleBaseURL() + "uploadfileservlet");
> form.setEncoding(FormPanel.ENCODING_MULTIPART);
> form.setMethod(FormPanel.METHOD_POST);
>
> I have a form with uploadfile widget, and some textbox.
> the uploaded file was successfully sent to server,, but the textbox
> item is null return in servlet.
>
> is there any other way to uploadfile with some field (texboxes)?
> instead of using formpanel?
>
>
>
> On Oct 23, 12:20 pm, QBox <[email protected]> wrote:
> > Sohttp://google-web-toolkit.googlecode.com/svn/javadoc/1.6/com/google/g.
> ..
> > <http://google-web-toolkit.googlecode.com/svn/javadoc/1.6/com/google/g..
> .>
> > Class FormPanel
> >
> > A panel that wraps its contents in an HTML <FORM> element.
> >
> > YoeZ say that he use This panel so it will be multipart ;)
> >
> >
> >
> > On Thu, Oct 22, 2009 at 8:57 PM, Sudeep S <[email protected]> wrote:
> > > multipart requests have to be sent via a FORM panel
> >
> > > On Thu, Oct 22, 2009 at 6:53 PM, Lazo Apostolovski <[email protected]
> >wrote:
> >
> > >> Its probably a multipart message :S
> >
> > >> Try googling for how to accept multipart message on the server side
> >
> > >> here is some example but i don't know if you find usefull.
> >
> > >> public HashMap<String, InputStream> parseMultipartMessage(
> > >> HttpServletRequest request) {
> >
> > >> mapWithStreams = new HashMap<String, InputStream>();
> >
> > >> boolean isMultipart =
> ServletFileUpload.isMultipartContent(request);
> > >> try {
> > >> if (isMultipart) {
> > >> FileItemFactory factory = new DiskFileItemFactory();
> > >> ServletFileUpload upload = new ServletFileUpload(factory);
> >
> > >> List<FileItem> items = upload.parseRequest(request);
> >
> > >> for (FileItem item : items) {
> > >> mapWithStreams.put(item.getFieldName(),
> item.getInputStream());
> > >> }
> > >> } else {
> > >> mapWithStreams.put(DEFAULT_KEY, request.getInputStream());
> > >> }
> > >> } catch (FileUploadException e) {
> > >> e.printStackTrace();
> > >> } catch (IOException e) {
> > >> e.printStackTrace();
> > >> }
> > >> return mapWithStreams;
> >
> > >> In normal message (not multipart) data from the text fields come like
> > >> the body of the message. If you try to transfer file in normal message
> > >> then Stream is send like the body of the message. So you can transver
> > >> only Parameters or only stream. If you want to transfer parameters and
> > >> stream in same message you need to use multipart message. In multipart
> > >> message InputStream come on server like a body of the message. If that
> > >> input stream contain multipart message you need to parse that message.
> > >> So in one part you will have values from input fields and in other
> part
> > >> you will have Stream for uploaded file. Read about multipart messages
> on
> > >> the wiki site. Code abowe will parse all input streams from multipart
> > >> message and place them to the HasMap. The Key in HashMap is the File
> > >> name. You can access to streams later when you need them. To the
> > >> parameters you can access on the same way like you deed before:
> >
> > >> request.getParameter("parameterName");
> >
> > >> Good luck.
> >
> > >> YoeZ wrote:
> > >> > Hey abhiram,
> >
> > >> > I still have a problem in server side,, can you tell me how to catch
> > >> > variable from client.
> >
> > >> > Let say I have a textbox in client.
> >
> > >> > Textbox txtComment = new Textbox;
> > >> > txtComment.setName("txtComment");
> > >> > txtComment .setText("hello");
> >
> > >> > in server side:
> > >> > I've tried:
> > >> > String varXXX = (String) request.getParameter("txtComment");
> >
> > >> > but that's not working. :(
> >
> > >> > and I've also tried like this :
> >
> > >> > try {
> > >> > List items = upload.parseRequest(request);
> > >> > Iterator it = items.iterator();
> > >> > while (it.hasNext()) {
> > >> > FileItem item = (FileItem) it.next();
> > >> > if (item.isFormField()) {
> > >> > String name = item.getFieldName();
> > >> > if (name.equals("txtComment")) {
> > >> > ret = item.getString();
> > >> > }
> > >> > return ret;
> > >> > }
> > >> > }
> > >> > } catch (FileUploadException e) {
> > >> > return null;
> > >> > }
> >
> > >> > but still null return.
> >
> > >> > can you tell me how to catch it.
> >
> > >> > regards
> >
> > >> > On Oct 21, 12:32 am, abhiram wuntakal <[email protected]> wrote:
> >
> > >> >> Hey Yoez,
> >
> > >> >> Not sure if it helps. But i have a workaround solution for this.
> Make
> > >> it a
> > >> >> two-step process. First use a RemoteServiceServlet to pass across
> your
> > >> >> variables to the server side and then save these values into some
> > >> variables
> > >> >> on the server side.
> >
> > >> >> Then you can use a HTTPServlet to pass across your file contents
> to
> > >> the
> > >> >> server side. Now you have the file as well as the variables.
> >
> > >> >> HTH,
> > >> >> Cheers,
> > >> >> Abhiram
> >
> > >> >> On Mon, Oct 19, 2009 at 6:12 PM, YoeZ <[email protected]> wrote:
> >
> > >> >>> thanks ian,, but i'm using GWT and tried to uploadfile which is
> must
> > >> >>> using FormPanel.
> > >> >>> I have successfully upload my file to server with UploadFile
> widget,
> > >> >>> but I have another textboxes too. and dunno how to catch inside
> > >> >>> FormPanel.
> >
> > >> >>> On Oct 19, 7:15 pm, Ian Bambury <[email protected]> wrote:
> >
> > >> >>>> You'll stand more chance of an answer if you ask that question in
> a
> > >> Java
> > >> >>>> forum. This is a GWT group.
> > >> >>>> Ian
> >
> > >> >>>>http://examples.roughian.com
> >
> > >> >>>> 2009/10/19 YoeZ <[email protected]>
> >
> > >> >>>>> hello... please help
> >
> > >> >>>>> On Oct 18, 12:31 am, YoeZ <[email protected]> wrote:
> >
> > >> >>>>>> Hi.
> >
> > >> >>>>>> I have 1 form panel with some textboxes and file upload.
> > >> >>>>>> the question is, how to get variables from client/form panel in
> > >> >>>>>> servlet?
> > >> >>>>>> i created DTO/Pojo object to hold variables in client, but i
> donk
> >
> > >> >>> know
> >
> > >> >>>>>> how to catch in servlet..
> >
> > >> >>>>>> please help
> >
> > >> >>>>>> thanks
> >
>
--
Zeno Consulting, Inc.
home: http://www.zenoconsulting.biz
blog: http://zenoconsulting.wikidot.com
p: 248.894.4922
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