It works for me in firefox. Here is my piece of code
*client side code :*
FileUpload upload = new FileUpload();
Panel uploadPanel = new Panel();
form.setAction(GWT.getModuleBaseURL() + "/myFormHandler");
form.setEncoding(com.google.gwt.user.client.ui.FormPanel.ENCODING_MULTIPART);
form.setMethod(com.google.gwt.user.client.ui.FormPanel.METHOD_POST);
VerticalPanel vertiPanel = new VerticalPanel();
form.setWidget(vertiPanel);
upload.setName("uploadFormElement");
vertiPanel.add(upload);
vertiPanel.add(uploadStatus);
vertiPanel.add(new com.google.gwt.user.client.ui.Button("Submit",
new ClickHandler() {
public void onClick(ClickEvent event) {
if (upload.getFilename().length() == 0) {
MessageBox.setMinWidth(400);
MessageBox.alert("Can not Upload an Empty File");
} else {
submissionStatus(upload.getFilename(),
currentProbNode.getId());
logEvent("SUB_" + currentProbNode.getId());
}
}
}));
form.addSubmitHandler(new
com.google.gwt.user.client.ui.FormPanel.SubmitHandler() {
public void onSubmit(SubmitEvent event) {
uploadStatus.setText("Status : Uploading.....");
MessageBox.setMinWidth(300);
MessageBox.wait("Please Wait While the File is being
Uploaded....");
// MessageBox.alert(event.)
uploadStatus.setVisible(true);
}
});
form.addSubmitCompleteHandler(
new
com.google.gwt.user.client.ui.FormPanel.SubmitCompleteHandler() {
public void onSubmitComplete(SubmitCompleteEvent event)
{
uploadStatus.setText("");
uploadStatus.setVisible(false);
// MessageBox.alert("Completed");
MessageBox.alert("File Successfully Uploaded..!!!");
// MessageBox.alert("EVENT RESULTS
:"+event.getResults());
// window.hide();
}
});
uploadPanel.add(form);
*Servlet Code (call this method from doPost / doGet with request as an
argument):*
private FileItem getFileItem(final HttpServletRequest request) {
FileItemFactory factory = new DiskFileItemFactory();
ServletFileUpload upload = new ServletFileUpload(factory);
try {
List items = upload.parseRequest(request);
//System.out.println("List Items, size --->" + items.size());
Iterator it = items.iterator();
while (it.hasNext()) {
//System.err.println();
FileItem item = (FileItem) it.next();
//System.out.println("FILE NAME : " + item.getName());
String extension="";
if(item.getName().contains(".")){
int dotPos = item.getName().lastIndexOf(".");
extension = item.getName().substring(dotPos);
//System.out.println("EXTENSION : "+extension);
}
if (item.isFormField()) {
//System.out.println("File String->" +
item.getString());
} else {
probNo = item.getFieldName();
System.out.println(String.format("File Name-> %s, Size->
%s, Content Type->%s, Isformfield-> %s, inMemory-> %s",
item.getFieldName(), item.getSize(),
item.getContentType(), item.isFormField(), item.isInMemory()));
this.processUpload(item,request,extension);
}
}
} catch (Exception e) {
e.printStackTrace();
System.out.println(e.toString());
return null;
}
return null;
}
This works fine for me in IE as well as Firefox. Hope it helps.
On Fri, Dec 4, 2009 at 12:52 AM, Lena <[email protected]> wrote:
> I'm writing a gwt site with a form using components from both gwt and
> gwt-ext. Since I need to send a file I can't use gwt's RPC services
> (GWTServletService), so I use a java servlet. I tried it in hosted
> mode and with IE6 and I recieve data properly. However, using firefox
> the servlet does not recieve anything.
>
> This is the gwt code corresponding to the form:
>
> final FormPanel uploadForm = new FormPanel();
> uploadForm.setAction(GWT.getModuleBaseURL() +
> "UploadFileServlet1");
> uploadForm.setEncoding(FormPanel.ENCODING_MULTIPART);
> uploadForm.setMethod(FormPanel.METHOD_POST);
> uploadForm.addFormHandler(new FormHandler(){
> public void onSubmit(FormSubmitEvent event){
>
> }
>
> public void onSubmitComplete(FormSubmitCompleteEvent event){
> //getExistBD();
> //wait.hide();
> //MessageBox.alert(event.getResults());
> }
> });
>
> // Create a FormPanel and point it at a service.
> final com.gwtext.client.widgets.form.FormPanel inUploadForm =
> new
> com.gwtext.client.widgets.form.FormPanel();
> inUploadForm.setPaddings(10);
> inUploadForm.setLabelWidth(150);
>
> FileUpload file = new FileUpload();
> file.setName("file");
> file.addStyleName("margin");
>
> FieldSet fsBD = new FieldSet("Guardar en");
> fsBD.addStyleName("fieldSet");
>
> final Store statesStore = new SimpleStore(new String[]{"en",
> "es"}, getStates());
> statesStore.load();
>
> ComboBox cbSaveMode = new ComboBox("Tipo de base de datos",
> "saveMode", 200);
> cbSaveMode.setEmptyText("Seleccionar...");
> cbSaveMode.setStore(statesStore);
> cbSaveMode.setDisplayField("es");
> cbSaveMode.setValueField("en");
> cbSaveMode.setReadOnly(true);
> cbSaveMode.setForceSelection(true);
> cbSaveMode.setMode(ComboBox.LOCAL);
> cbSaveMode.setTriggerAction(ComboBox.ALL);
> cbSaveMode.setBlankText("Este campo es obligatorio");
> cbSaveMode.addListener(new ComboBoxListenerAdapter(){
> public void onSelect(ComboBox comboBox, Record record, int
> index)
> {
> cbBD.setValue("");
> existBDStore.filter("en", comboBox.getValue());
>
> //if(comboBox.getValue().equals("public")){
> // cbBD.setStore(existPublicBDStore);
> //}else if(comboBox.getValue().equals("private")){
> // cbBD.setStore(existPrivateBDStore);
> //}
> }
> });
>
> cbBD = new ComboBox("", "nameExistBD", 200);
> cbBD.setEmptyText("Seleccionar...");
> cbBD.setDisplayField("name");
> cbBD.setValueField("id");
> cbBD.setLinked(true);
> cbBD.setMode(ComboBox.LOCAL);
> cbBD.setTriggerAction(ComboBox.ALL);
> cbBD.setReadOnly(true);
> cbBD.setForceSelection(true);
>
> final TextField nameField = new TextField("", "nameNewBD", 200);
> nameField.disable();
>
> final Radio rExist = new Radio("Base de datos existente", "bd");
> rExist.setChecked(true);
> rExist.setHideLabel(true);
>
> final Radio rNew = new Radio("Nueva base de datos", "bd");
> rNew.setChecked(false);
> rNew.setHideLabel(true);
>
> rExist.addListener(new CheckboxListenerAdapter(){
> public void onCheck(Checkbox field, boolean checked){
> if(checked == true){
> cbBD.enable();
> nameField.disable();
> }
> }
> });
>
> rNew.addListener(new CheckboxListenerAdapter(){
> public void onCheck(Checkbox field, boolean checked){
> if(checked == true){
> cbBD.disable();
> nameField.enable();
> }
> }
> });
>
> fsBD.add(cbSaveMode);
> fsBD.add(rExist);
> fsBD.add(cbBD);
> fsBD.add(rNew);
> fsBD.add(nameField);
>
> Button uploadSubmitButton = new Button("Submit", new
> ButtonListenerAdapter(){
> public void onClick(Button button, EventObject e) {
> uploadForm.submit();
> }
> });
>
> inUploadForm.add(file);
> inUploadForm.add(fsBD);
> inUploadForm.add(uploadSubmitButton);
>
> uploadForm.add(inUploadForm);
>
> return uploadForm;
>
>
> And here's the java servlet code:
>
> protected void doPost(HttpServletRequest request,
> HttpServletResponse response) throws ServletException, IOException {
>
> 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() &&
> "file".equals(item.getFieldName())){
> file = item.getInputStream();
> }else if("saveMode".equals(item.getFieldName())){
> saveMode =
> Streams.asString(item.getInputStream());
> }else if("nameExistBD".equals(item.getFieldName())){
> existBD =
> Streams.asString(item.getInputStream());
> }else if("nameNewBD".equals(item.getFieldName())){
> nameBD =
> Streams.asString(item.getInputStream());
> }
> }
> }catch(FileUploadException e){
> e.printStackTrace();
> }catch(IOException ioe){
> ioe.printStackTrace();
> }
> }
>
>
> I've been trying to find out what happens for days and I don't
> understand what happens. If someone can help me I will ve very
> grateful.
>
> Thanks in advance
>
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>
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>
>
--
Thanks and Regards,
Deepak Kumar Mallapu,
IT Associate,
Center for Education Technology and Learning Sciences,
IIIT-Hyderabad,
Mobile :9866976686.
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