java - using apache fileupload on GAE - Stack Overflow

You should use the FileItemIterator of the Apache Commons FileUpload.

import org.apache.commons.fileupload.FileItemStream;  import org.apache.commons.fileupload.FileItemIterator;  import org.apache.commons.fileupload.servlet.ServletFileUpload;  import java.io.InputStream;  ..  public void doPost(HttpServletRequest req, HttpServletResponse res)        throws ServletException, IOException {      try {        ServletFileUpload upload = new ServletFileUpload();        res.setContentType("text/plain");          FileItemIterator iterator = upload.getItemIterator(req);        while (iterator.hasNext()) {          String name = item.getFieldName();          FileItemStream item = iterator.next();          InputStream stream = item.openStream();            if (item.isFormField()) {            //regular form field            resp.getWriter().println(("Form:" + name + " : " + Streams.asString(stream));          else {            //fileform field             resp.getWriter().println(("File:" +name + " : " + item.getName());          }          }      } catch (Exception ex) {        throw new ServletException(ex);      }  }

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