I've read several posts about this but everyon seems to be using
different code and different methods. I've tried several but none seem
to work. I must be missing some fundamental component.
I try to upload a file but even though the request arrives on server
side theres no file. The request is only 48 bytes and I can't figure
out why. If anyone can tell me what I'm doing wrong I'd greatly
appreciate it.
Client side:
FormPanel form = new FormPanel();
form.setEncoding(FormPanel.ENCODING_MULTIPART);
form.setMethod(FormPanel.METHOD_POST);
form.setAction("/adt/fileUpload");
form.addSubmitCompleteHandler(new FormPanel.SubmitCompleteHandler
() {
public void onSubmitComplete(SubmitCompleteEvent event) {
// When the form submission is successfully completed, this
event is
// fired. Assuming the service returned a response of type
text/html,
// we can get the result text here (see the FormPanel
documentation for
// further explanation).
errors.setHTML(event.getResults());
}});
file = new FileUpload();
file.setStylePrimaryName("FileUpload");
form.add(file);
this.add(form);
Server Side:
public void doPost(HttpServletRequest request, HttpServletResponse
response) throws ServletException, IOException {
ServletFileUpload upload = new ServletFileUpload();
System.out.println("Here");
Enumeration<String>enumer = request.getParameterNames();
while(enumer.hasMoreElements())
{
String name = enumer.nextElement();
System.out.println(name + " " + request.getParameterValues
(name));
}
try{
FileItemIterator iter = upload.getItemIterator(request);
System.out.println("Size " + iter.hasNext());
while (iter.hasNext()) {
FileItemStream item = iter.next();
String name = item.getFieldName();
InputStream stream = item.openStream();
// Process the input stream
ByteArrayOutputStream out = new ByteArrayOutputStream
();
int len;
byte[] buffer = new byte[8192];
while ((len = stream.read(buffer, 0, buffer.length)) !
= -1) {
out.write(buffer, 0, len);
}
int maxFileSize = 10*(1024*2); //10 megs max
if (out.size() > maxFileSize) {
System.out.println("File is > than " +
maxFileSize);
return;
}
File f = new File(item.getName());
if(f.exists())
f.delete();
FileOutputStream fos = new FileOutputStream(f);
byte[] bytes = out.toByteArray();
fos.write(bytes);
StandardGridImport sgi = new StandardGridImport();
sgi.init(f.getPath());
List<GridBean> beans = sgi.parseGrid();
List<CellFormatError> errors = sgi.getErrors();
PrintWriter pw = response.getWriter();
for(int x = 0; x < errors.size(); x++)
pw.write(errors.get(x).toString());
pw.flush();
pw.close();
System.out.println("Done");
}
}
catch(Exception e){
e.printStackTrace();
}
}
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