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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