Passing parameters along with a multipart/form-data upload form (Java Http Post Upload)

Question

I have a code base which currently uploads file using Post and has enctype as multipart/form-data. Now I need to include some form items i.e. some parameters will also be pa

Answer 1

To send a parameter with a FileUpload it just needs to be added in the URL within the setAction method As follows:

formPanel.setAction("<ProjectURL>/<YourServletName>?<YourParameterName>="+parameter);

And in your servlet simply get the parameter as follows:

req.getParameter("<YourParameterName>");

Hope it helps ;-)

Answer 2

Similar solutions:

FileItemStream item = iter.next();
if(item.isFormField()) {
    String value = item.getString();
}

or

FileItemStream item = iter.next();
if(item.isFormField()) {
   InputStream name = item.getInputStream();
   String value = Streams.asString(name);
}

Answer 3

If isFormField on FileItemStream returns true it's a normal field. You can use openStream and read the contents into a String.

Something like this:

FileItemStream item = iter.next();
if(item.isFormField()) {
   // Normal field
   String name = item.getFieldName();
   String value = Streams.asString(item.openStream());
} else {
   // File
}

Streams.asString takes a second parameter which is the charset encoding to use, you might need to specify one that is suitable for your site.