How have you attached the panel?
RootPanel.get().add(uploadPanel );
On Oct 30, 4:35 pm, grasshopper <[EMAIL PROTECTED]> wrote:
> mon3y,
>
> No. Not getting alert popping up after i click on submit.
>
> Looking through GWT Group discussions i found a discussion/thread
> which helped me realize i was making a mistake in my code. I was
> attaching the uploadPanel not the uploadForm to the page. However,
> despite some progress, now that i attach the form and not the vertical
> panel. The form with the panel as a widget does not show/display.
>
> On Oct 30, 10:13 am, mon3y <[EMAIL PROTECTED]> wrote:
>
> > do u get the window alert popping up after u click on submit?
>
> > On Oct 29, 8:24 pm, grasshopper <[EMAIL PROTECTED]> wrote:
>
> > > I am trying to set up file uploading in an app and I am having trouble
> > > with no sign of what is wrong.
>
> > > My trouble is that when I click a button to submit a FormPanel,
> > > nothing happens.
>
> > > To make matters worst I get no error on tomcat logs or anywhere.
>
> > > I am clueless as to what might be happenning.
>
> > > This is my onModuleLoad() code:
> > > //Create a FormPanel and point it at a service.
> > > final FormPanel uploadForm = new FormPanel();
> > > uploadForm.setAction(GWT.getModuleBaseURL() +
> > > "wallpaperUploadService");
>
> > > // Because we're going to add a FileUpload widget, we'll need to
> > > set the
> > > // form to use the POST method, and multipart MIME encoding.
> > > uploadForm.setEncoding(FormPanel.ENCODING_MULTIPART);
> > > uploadForm.setMethod(FormPanel.METHOD_POST);
>
> > > // Create a panel to hold all of the form widgets.
> > > VerticalPanel uploadPanel = new VerticalPanel();
> > > uploadForm.setWidget(uploadPanel);
>
> > > // Create a FileUpload widget.
> > > FileUpload upload = new FileUpload();
> > > upload.setName("uploadFormElement");
> > > uploadPanel.add(upload);
>
> > > // Add a 'submit' button.
> > > Button uploadSubmitButton = new Button("Submit");
> > > uploadPanel.add(uploadSubmitButton);
>
> > > uploadSubmitButton.addClickListener(new ClickListener() {
> > > public void onClick(Widget sender) {
> > > uploadForm.submit();
> > > }
> > > });
>
> > > uploadForm.addFormHandler(new FormHandler() {
> > > public void onSubmit(FormSubmitEvent event) {
> > > }
>
> > > public void onSubmitComplete(FormSubmitCompleteEvent event) {
> > > Window.alert(event.getResults());
> > > }
> > > });
>
> > > My servlet is code:
> > > public class WallpaperUploadServlet extends HttpServlet implements
> > > Servlet {
>
> > > public void init(ServletConfig config) throws ServletException{
>
> > > }
>
> > > protected void doPost(HttpServletRequest request,
> > > HttpServletResponse
> > > response)
> > > throws ServletException, IOException {
> > > response.setContentType("text/plain");
>
> > > FileItem uploadItem = getFileItem(request);
> > > if (uploadItem == null) {
> > > response.getWriter().write("NO-SCRIPT-DATA");
> > > return;
> > > }
>
> > > byte[] fileContents = uploadItem.get();
> > > //TODO: add code to process file contents here. We will just
> > > print it.
>
> > > //System.out.println(new String(fileContents));
> > > response.getWriter().write("GOT-DATA");
> > > }
>
> > > private FileItem getFileItem(HttpServletRequest request) {
> > > FileItemFactory factory = new DiskFileItemFactory();
> > > ServletFileUpload upload = new ServletFileUpload(factory);
>
> > > try {
> > > List items = upload.parseRequest(request);
> > > Iterator it = items.iterator();
> > > while (it.hasNext()) {
> > > FileItem item = (FileItem) it.next();
> > > if (!item.isFormField()
> > > && "uploadFormElement".equals(item.getFieldName())) {
> > > return item;
> > > }
> > > }
> > > } catch (FileUploadException e) {
> > > return null;
> > > }
> > > return null;
> > > }
>
> > > }
>
> > > web.xml:
> > > <servlet>
> > > <servlet-name>WallpaperUploadService</servlet-name>
> > > <servlet-class>
>
> > > net.newfoundcomm.attendant.server.WallpaperUploadServlet
> > > </servlet-class>
>
> > > <init-param>
> > > <param-name>action-class</param-name>
>
> > > <!-- Replace the action class name below with the fully
> > > qualified name of the action class -->
> > > <param-
> > > value>net.newfoundcomm.attendant.WallpaperUploadActionClass</param-
> > > value>
> > > </init-param>
> > > </servlet>
>
> > > <servlet-mapping>
> > > <servlet-name>WallpaperUploadService</servlet-name>
> > > <url-pattern>/wallpaperUploadService</url-pattern>
> > > </servlet-mapping>
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