Example usage for org.apache.commons.fileupload.servlet ServletFileUpload isMultipartContent

List of usage examples for org.apache.commons.fileupload.servlet ServletFileUpload isMultipartContent

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Introduction

In this page you can find the example usage for org.apache.commons.fileupload.servlet ServletFileUpload isMultipartContent.

Prototype

public static final boolean isMultipartContent(HttpServletRequest request)

Source Link

Document

Utility method that determines whether the request contains multipart content.

Usage

From source file:my.mavenproject10.FileuploadController.java

@RequestMapping(method = RequestMethod.POST)
ModelAndView upload(HttpServletRequest request, HttpServletResponse response) {

    boolean isMultipart = ServletFileUpload.isMultipartContent(request);
    String fileName = "";
    int size = 0;
    ArrayList<String> result = new ArrayList<String>();
    if (isMultipart) {
        FileItemFactory factory = new DiskFileItemFactory();
        ServletFileUpload upload = new ServletFileUpload(factory);

        try {/*from   w  w  w. j  a  v  a 2  s.c  o  m*/
            List items = upload.parseRequest(request);
            Iterator iterator = items.iterator();
            while (iterator.hasNext()) {
                FileItem item = (FileItem) iterator.next();
                fileName = item.getName();
                System.out.println("file name " + item.getName());
                JAXBContext jc = JAXBContext.newInstance(CustomersType.class);
                SAXParserFactory spf = SAXParserFactory.newInstance();
                XMLReader xmlReader = spf.newSAXParser().getXMLReader();
                InputSource inputSource = new InputSource(
                        new InputStreamReader(item.getInputStream(), "UTF-8"));
                SAXSource source = new SAXSource(xmlReader, inputSource);
                Unmarshaller unmarshaller = jc.createUnmarshaller();
                CustomersType data2 = (CustomersType) unmarshaller.unmarshal(source);
                //System.out.println("size " + data2.getCustomer().size());
                size = data2.getCustomer().size();
                for (CustomerType customer : data2.getCustomer()) {
                    System.out.println(customer.toString());
                }
                //  
                double summ = 0.0;
                HashMap<Integer, Float> ordersMap = new HashMap<Integer, Float>();
                for (CustomerType customer : data2.getCustomer()) {
                    for (OrderType orderType : customer.getOrders().getOrder()) {
                        Float summPerOrder = 0.0f;
                        //System.out.println(orderType);
                        for (PositionType positionType : orderType.getPositions().getPosition()) {
                            //System.out.println(positionType);
                            summPerOrder += positionType.getCount() * positionType.getPrice();
                            summ += positionType.getCount() * positionType.getPrice();
                        }
                        ordersMap.put(orderType.getId(), summPerOrder);
                    }
                }
                summ = new BigDecimal(summ).setScale(2, RoundingMode.UP).doubleValue();
                System.out.println("   " + summ);
                result.add("   " + summ);

                //    
                HashMap<Integer, Float> customersMap = new HashMap<Integer, Float>();
                for (CustomerType customer : data2.getCustomer()) {
                    Float summPerCust = 0.0f;
                    customersMap.put(customer.getId(), summPerCust);
                    for (OrderType orderType : customer.getOrders().getOrder()) {
                        for (PositionType positionType : orderType.getPositions().getPosition()) {
                            summPerCust += positionType.getCount() * positionType.getPrice();
                        }
                    }
                    //System.out.println(customer.getId() + " orders " + summPerCust);
                    customersMap.put(customer.getId(), summPerCust);
                }
                TreeMap sortedMap = sortByValue(customersMap);
                System.out.println(" " + sortedMap.keySet().toArray()[0]
                        + "    : " + sortedMap.get(sortedMap.firstKey()));
                result.add(" " + sortedMap.keySet().toArray()[0] + "    : "
                        + sortedMap.get(sortedMap.firstKey()));

                //  
                TreeMap sortedMapOrders = sortByValue(ordersMap);
                System.out.println("   " + sortedMapOrders.keySet().toArray()[0]
                        + " : " + sortedMapOrders.get(sortedMapOrders.firstKey()));
                result.add("   " + sortedMapOrders.keySet().toArray()[0] + " : "
                        + sortedMapOrders.get(sortedMapOrders.firstKey()));

                //  
                System.out.println("   "
                        + sortedMapOrders.keySet().toArray()[sortedMapOrders.keySet().toArray().length - 1]
                        + " : " + sortedMapOrders.get(sortedMapOrders.lastKey()));
                result.add("   "
                        + sortedMapOrders.keySet().toArray()[sortedMapOrders.keySet().toArray().length - 1]
                        + " : " + sortedMapOrders.get(sortedMapOrders.lastKey()));

                // 
                System.out.println("  " + sortedMapOrders.size());
                result.add("  " + sortedMapOrders.size());

                //  
                ArrayList<Float> floats = new ArrayList<Float>(sortedMapOrders.values());
                Float summAvg = 0.0f;
                Float avg = 0.0f;
                for (Float f : floats) {
                    summAvg += f;
                }
                avg = new BigDecimal(summAvg / floats.size()).setScale(2, RoundingMode.UP).floatValue();
                System.out.println("   " + avg);
                result.add("   " + avg);

            }
        } catch (FileUploadException e) {
            System.out.println("FileUploadException:- " + e.getMessage());
        } catch (JAXBException ex) {
            //Logger.getLogger(FileuploadController.class.getName()).log(Level.SEVERE, null, ex);
        } catch (UnsupportedEncodingException ex) {
            Logger.getLogger(FileuploadController.class.getName()).log(Level.SEVERE, null, ex);
        } catch (IOException ex) {
            Logger.getLogger(FileuploadController.class.getName()).log(Level.SEVERE, null, ex);
        } catch (ParserConfigurationException ex) {
            Logger.getLogger(FileuploadController.class.getName()).log(Level.SEVERE, null, ex);
        } catch (SAXException ex) {
            Logger.getLogger(FileuploadController.class.getName()).log(Level.SEVERE, null, ex);
        }
    }

    ModelAndView modelAndView = new ModelAndView("fileuploadsuccess");
    modelAndView.addObject("files", result);
    modelAndView.addObject("name", fileName);
    modelAndView.addObject("size", size);
    return modelAndView;

}

From source file:com.runwaysdk.web.WebFileUploadServlet.java

protected void doPost(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException {
    ClientRequestIF clientRequest = (ClientRequestIF) req.getAttribute(ClientConstants.CLIENTREQUEST);

    // capture the session id
    boolean isMultipart = ServletFileUpload.isMultipartContent(req);

    if (!isMultipart) {
        // TODO Change exception type
        String msg = "The HTTP Request must contain multipart content.";
        throw new RuntimeException(msg);
    }//w  ww  .  j  av a2 s .  com

    FileItemFactory factory = new DiskFileItemFactory();
    ServletFileUpload upload = new ServletFileUpload();

    upload.setFileItemFactory(factory);

    try {
        // Parse the request
        FileItemIterator iter = upload.getItemIterator(req);

        String fileName = null;
        String extension = null;
        InputStream stream = null;
        String uploadPath = null;
        while (iter.hasNext()) {
            FileItemStream item = iter.next();
            InputStream input = item.openStream();
            if (item.isFormField() && item.getFieldName().equals(WEB_FILE_UPLOAD_PATH_FIELD_NAME)) {
                uploadPath = Streams.asString(input);
            } else if (!item.isFormField()) {
                String fullName = item.getName();
                int extensionInd = fullName.lastIndexOf(".");
                fileName = fullName.substring(0, extensionInd);
                extension = fullName.substring(extensionInd + 1);
                stream = input;
            }
        }

        if (stream != null) {
            clientRequest.newFile(uploadPath, fileName, extension, stream);
        }
    } catch (FileUploadException e) {
        throw new FileWriteExceptionDTO(e.getLocalizedMessage());
    }
}

From source file:hu.sztaki.lpds.storage.net.bes.FileUploadServlet.java

/** 
 * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
 * @param request servlet request/*w w  w  .j  a  v  a2 s  .co m*/
 * @param response servlet response
 * @throws ServletException if a servlet-specific error occurs
 * @throws IOException if an I/O error occurs
 */
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {

    response.setContentType("text/html;charset=UTF-8");
    ServletRequestContext servletRequestContext = new ServletRequestContext(request);
    boolean isMultipart = ServletFileUpload.isMultipartContent(servletRequestContext);
    if (isMultipart) {
        File newFile;
        FileItemFactory factory = new DiskFileItemFactory();
        ServletFileUpload servletFileUpload = new ServletFileUpload(factory);
        servletFileUpload.setSizeMax(Long.MAX_VALUE);
        try {
            List<FileItem> listFileItems = servletFileUpload.parseRequest(request);
            String path = PropertyLoader.getInstance().getProperty("portal.prefix.dir") + "storage/"
                    + request.getParameter("path") + "/";
            String link = request.getParameter("link");
            File f = new File(path);
            f.mkdirs();

            String[] pathData = request.getParameter("path").split("/");
            for (FileItem t : listFileItems) {
                if (!t.isFormField()) {
                    newFile = new File(path + "/" + t.getFieldName());
                    t.write(newFile);
                    QuotaService.getInstance().addPlussRtIDQuotaSize(pathData[0], pathData[1], pathData[2],
                            pathData[5], newFile.length());
                    //                        QuotaService.getInstance().get(pathData[0], pathData[1]).g
                    //                        System.out.println("STORAGE:"+newFile.getAbsolutePath());
                    if (link != null)
                        if (!t.getFieldName().equals(link))
                            FileUtils.getInstance().createLink(path, t.getFieldName(),
                                    path + link + getGeneratorPostFix(t.getFieldName()));
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

}

From source file:com.square.composant.envoi.email.square.server.servlet.UploadFichierServlet.java

/** {@inheritDoc} */
@SuppressWarnings("unchecked")
protected void doPost(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {

    final boolean isMultipart = ServletFileUpload.isMultipartContent(request);

    // Cration d'un DiskFileItemFactory pour stocker les fichiers.
    if (isMultipart) {
        try {/*from   ww  w .  j av  a  2 s.c  om*/
            final FileItemFactory factory = new DiskFileItemFactory();
            final ServletFileUpload upload = new ServletFileUpload(factory);
            upload.setHeaderEncoding(ComposantEnvoiEmailConstants.ENCODAGE_UTF_8);

            // Rcupration des items contenus dans la requte
            final List<FileItem> listeItems = upload.parseRequest(request);

            // Parcours des items
            for (FileItem item : listeItems) {

                // Fichier  uploader
                if (!item.isFormField()) {
                    // Nom du fichier
                    String nomFichier = "";
                    // on verifie si il y a un backslash
                    if (item.getName().indexOf("\\") != -1) {
                        // [\\\\] = expression rgulire pour dcouper suivant le backslash
                        final String[] tabNomFichier = item.getName().split("\\\\");
                        nomFichier = tabNomFichier[tabNomFichier.length - 1];
                    } else {
                        nomFichier = item.getName();
                    }

                    // Type MIME
                    final String typeMime = item.getContentType();

                    // Cration d'un fichier temporaire
                    String prefixe = nomFichier;
                    String suffixe = null;
                    if (nomFichier.indexOf(".") != -1) {
                        final int indexPoint = nomFichier.lastIndexOf(".");
                        prefixe = nomFichier.substring(0, indexPoint);
                        suffixe = nomFichier.substring(indexPoint);
                    }

                    if (prefixe.length() < 3) {
                        response.getOutputStream()
                                .print(ComposantEnvoiEmailConstants.ERREUR_UPLOAD_FICHIER_NOM_INCORRECT);
                    } else {
                        final File fichierTemporaire = File.createTempFile(prefixe, suffixe);
                        item.write(fichierTemporaire);

                        // Renvoi des infos concernant le fichier
                        final StringBuffer infosFichier = new StringBuffer();
                        infosFichier.append(ComposantEnvoiEmailConstants.PARAM_NOM_FICHIER)
                                .append(ComposantEnvoiEmailConstants.EGAL).append(nomFichier);
                        infosFichier.append(ComposantEnvoiEmailConstants.ET);
                        infosFichier.append(ComposantEnvoiEmailConstants.PARAM_PATH_FICHIER_TEMP)
                                .append(ComposantEnvoiEmailConstants.EGAL)
                                .append(fichierTemporaire.getCanonicalPath());
                        infosFichier.append(ComposantEnvoiEmailConstants.ET);
                        infosFichier.append(ComposantEnvoiEmailConstants.PARAM_TYPE_MIME)
                                .append(ComposantEnvoiEmailConstants.EGAL).append(typeMime);
                        response.getOutputStream().print(URLEncoder.encode(infosFichier.toString(),
                                ComposantEnvoiEmailConstants.ENCODAGE_UTF_8));
                    }
                }
            }

        } catch (FileUploadException e) {
            response.getOutputStream().print(ComposantEnvoiEmailConstants.ERREUR_UPLOAD_FICHIER);
        } catch (Exception e) {
            response.getOutputStream().print(ComposantEnvoiEmailConstants.ERREUR_UPLOAD_FICHIER);
        }
    }

}

From source file:manager.doCreateToy.java

/**
 * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
 * methods.// w  ww.ja v a2  s . c o m
 *
 * @param request servlet request
 * @param response servlet response
 * @throws ServletException if a servlet-specific error occurs
 * @throws IOException if an I/O error occurs
 */
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    response.setContentType("text/html;charset=UTF-8");
    PrintWriter out = response.getWriter();
    String categoryList = "";
    String fileName = null;

    if (ServletFileUpload.isMultipartContent(request)) {
        try {
            List<FileItem> multiparts = new ServletFileUpload(new DiskFileItemFactory()).parseRequest(request);

            for (FileItem item : multiparts) {
                if (!item.isFormField()) {
                    String name = new File(item.getName()).getName();
                    imageFile = new File(item.getName());

                    fileName = name;
                } else {
                    if (item.getFieldName().equals("toyID")) {
                        toyID = Integer.parseInt(item.getString());
                    }
                    if (item.getFieldName().equals("toyName")) {
                        toyName = item.getString();
                    }
                    if (item.getFieldName().equals("description")) {
                        description = item.getString();
                    }

                    if (item.getFieldName().equals("category")) {
                        categoryList += item.getString();

                    }
                    if (item.getFieldName().equals("secondHand")) {
                        secondHand = item.getString();
                    }

                    if (item.getFieldName().equals("cashpoint")) {
                        cashpoint = Integer.parseInt(item.getString());
                    }
                    if (item.getFieldName().equals("qty")) {
                        qty = Integer.parseInt(item.getString());
                    }
                    if (item.getFieldName().equals("discount")) {
                        discount = Integer.parseInt(item.getString());
                    }

                    if (item.getFieldName().equals("uploadString")) {
                        base64String = item.getString();
                    }
                    //if(item.getFieldName().equals("desc"))
                    // desc= item.getString();
                }
            }
            category = categoryList.split(";");

            //File uploaded successfully
            //request.setAttribute("message", "File Uploaded Successfully" + desc);
        } catch (Exception ex) {

            request.setAttribute("message", "File Upload Failed due to " + ex);
        }

    }
    File file = imageFile;
    if (!(fileName == null)) {

        try {
            /*
            * Reading a Image file from file system
             */
            FileInputStream imageInFile = new FileInputStream(file);
            byte imageData[] = new byte[(int) file.length()];
            imageInFile.read(imageData);

            /*
            * Converting Image byte array into Base64 String 
             */
            String imageDataString = encodeImage(imageData);
            request.setAttribute("test", imageDataString);
            /*
            * Converting a Base64 String into Image byte array 
             */
            //byte[] imageByteArray = decodeImage(imageDataString);

            /*
            * Write a image byte array into file system  
             */
            //FileOutputStream imageOutFile = new FileOutputStream("C:\\Users\\Mesong\\Pictures\\Screenshots\\30.png");
            //imageOutFile.write(imageByteArray);
            //request.setAttribute("photo", imageDataString);
            // toyDB toydb = new toyDB();
            //Toy t = toydb.listToyByID(1);
            // toydb.updateToy(t.getToyID(), imageDataString, t.getCashpoint(), t.getQTY(), t.getDiscount());
            imageInFile.close();
            //request.getRequestDispatcher("managerPage/result.jsp").forward(request, response);
            //imageOutFile.close();

            imgString = imageDataString;
            System.out.println("Image Successfully Manipulated!");
        } catch (FileNotFoundException e) {
            out.println("Image not found" + e.getMessage());
        } catch (IOException ioe) {
            System.out.println("Exception while reading the Image " + ioe);
        }
    }
    try {
        toyDB toydb = new toyDB();
        // out.println("s");

        //           int toyID = Integer.parseInt(request.getParameter("toyID"));
        //           String toyName = request.getParameter("toyName");
        //           String description = request.getParameter("description");
        //          
        //           String toyIcon = request.getParameter("toyIcon");
        //           
        //           String[] category = request.getParameterValues("category");
        //           String secondHand = request.getParameter("secondHand");
        //           if(toyIcon==null) toyIcon = "";
        //           int cashpoint = Integer.parseInt(request.getParameter("cashpoint"));
        //           int qty = Integer.parseInt(request.getParameter("qty"));
        //           int discount = Integer.parseInt(request.getParameter("discount"));
        //toydb.updateToy(toyID, toyName,description, toyIcon, cashpoint, qty, discount);
        if (!base64String.equals(""))
            imgString = base64String;
        toydb.createToy(toyName, description, imgString, cashpoint, qty, discount);
        //for(String c : category)
        //   out.println(c);

        out.println(toyID);
        out.println(description);
        out.println(toyIcon);
        out.println(cashpoint);
        out.println(qty);
        out.println(discount);

        toyCategoryDB toyCatdb = new toyCategoryDB();

        // toyCatdb.deleteToyType(toyID);
        for (String c : category) {
            toyCatdb.createToyCategory(Integer.parseInt(c), toyID);
        }
        if (!secondHand.equals("")) {
            secondHandDB seconddb = new secondHandDB();
            SecondHand sh = seconddb.searchSecondHand(Integer.parseInt(secondHand));
            int secondHandCashpoint = sh.getCashpoint();
            toydb.updateToySecondHand(toyID, Integer.parseInt(secondHand));
            toydb.updateToy(toyID, imgString, secondHandCashpoint, qty, discount);
        } else {
            toydb.updateToySecondHand(toyID, -1);

        }
        //out.println(imgString);
        response.sendRedirect("doSearchToy");

    } catch (Exception e) {
        out.println(e.toString());
    } finally {
        out.close();
    }
}

From source file:guru.bubl.service.resources.vertex.VertexImageResource.java

@POST
@Consumes(MediaType.MULTIPART_FORM_DATA)
@GraphTransactional//w  w w .  j  a v a 2  s .  co  m
@Produces(MediaType.APPLICATION_JSON)
@Path("/")
public Response add(@Context HttpServletRequest request) {
    Set<Image> uploadedImages = new HashSet<>();
    if (ServletFileUpload.isMultipartContent(request)) {
        final FileItemFactory factory = new DiskFileItemFactory();
        final ServletFileUpload fileUpload = new ServletFileUpload(factory);
        try {
            /*
            * parseRequest returns a list of FileItem
            * but in old (pre-java5) style
            */
            final List items = fileUpload.parseRequest(request);

            if (items != null) {
                final Iterator iter = items.iterator();
                while (iter.hasNext()) {
                    final FileItem item = (FileItem) iter.next();
                    String imageId = UUID.randomUUID().toString();
                    final File savedFile = new File(IMAGES_FOLDER_PATH + File.separator + imageId);
                    System.out.println("Saving the file: " + savedFile.getName());
                    item.write(savedFile);
                    saveBigImage(savedFile);
                    String imageBaseUrl = request.getRequestURI() + "/" + imageId + "/";
                    String base64ForSmallImage = Base64.encodeBase64String(resizedSmallImage(savedFile));
                    uploadedImages.add(Image.withBase64ForSmallAndUriForBigger(base64ForSmallImage,
                            URI.create(imageBaseUrl + "big")));
                }
            }
            vertex.addImages(uploadedImages);

            return Response.ok().entity(ImageJson.toJsonArray(uploadedImages)).build();
        } catch (Exception exception) {
            exception.printStackTrace();
            throw new WebApplicationException(Response.Status.BAD_REQUEST);
        }
    }
    throw new WebApplicationException(Response.Status.INTERNAL_SERVER_ERROR);
}

From source file:cc.aileron.wsgi.request.WsgiRequestParameterFactoryImpl.java

@Override
public WorkflowRequestParameter create(final HttpServletRequest request) throws FileUploadException {
    try {/*www. j ava  2 s . co m*/
        request.setCharacterEncoding(characterEncodingName);
    } catch (final UnsupportedEncodingException e) {
    }
    if (ServletFileUpload.isMultipartContent(request)) {
        final DiskFileItemFactory factory = new DiskFileItemFactory();
        final ServletFileUpload upload = new ServletFileUpload(factory);
        factory.setSizeThreshold(1024);
        upload.setSizeMax(-1);
        upload.setHeaderEncoding(characterEncodingName);
        return new RequestMultipart(characterEncoding, upload, request);
    }
    return new RequestUrlencoded(request);
}

From source file:mercury.UploadController.java

protected void processRequest(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    boolean isMultipart = ServletFileUpload.isMultipartContent(request);
    if (isMultipart) {
        ServletFileUpload upload = new ServletFileUpload(new DiskFileItemFactory());
        try {/*from  ww  w  . j a  v  a  2 s  . c  o m*/
            List items = upload.parseRequest(request);
            Iterator iter = items.iterator();
            while (iter.hasNext()) {
                FileItem item = (FileItem) iter.next();
                if (!item.isFormField()) {
                    String targetUrl = Config.getConfigProperty(ConfigurationEnum.DIGITAL_MEDIA);
                    if (StringUtils.isBlank(targetUrl)) {
                        targetUrl = request.getRequestURL().toString();
                        targetUrl = targetUrl.substring(0, targetUrl.lastIndexOf('/'));
                    }
                    targetUrl += "/DigitalMediaController";
                    PostMethod filePost = new PostMethod(targetUrl);
                    filePost.getParams().setBooleanParameter(HttpMethodParams.USE_EXPECT_CONTINUE, false);
                    UploadPartSource src = new UploadPartSource(item.getName(), item.getSize(),
                            item.getInputStream());
                    Part[] parts = new Part[1];
                    parts[0] = new FilePart(item.getName(), src, item.getContentType(), null);
                    filePost.setRequestEntity(new MultipartRequestEntity(parts, filePost.getParams()));
                    HttpClient client = new HttpClient();
                    client.getHttpConnectionManager().getParams().setConnectionTimeout(5000);
                    int status = client.executeMethod(filePost);
                    if (status == HttpStatus.SC_OK) {
                        String data = filePost.getResponseBodyAsString();
                        JSONObject json = new JSONObject(data);
                        if (json.has("id")) {
                            JSONObject responseJson = new JSONObject();
                            responseJson.put("success", true);
                            responseJson.put("id", json.getString("id"));
                            responseJson.put("uri", targetUrl + "?id=" + json.getString("id"));
                            response.getWriter().write(responseJson.toString());
                        }
                    }
                    filePost.releaseConnection();
                    return;
                }
            }
        } catch (FileUploadException e) {
            e.printStackTrace();
        } catch (JSONException je) {
            je.printStackTrace();
        }
    }
    response.getWriter().write("{success: false}");
}

From source file:controller.UploadServlet.java

@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    // checks if the request actually contains upload file
    if (!ServletFileUpload.isMultipartContent(request)) {
        // if not, we stop here
        PrintWriter writer = response.getWriter();
        writer.println("Error: Form must has enctype=multipart/form-data.");
        writer.flush();//from w  w  w  .ja  v a2 s . c  om
        return;
    }
    // configures upload settings
    DiskFileItemFactory factory = new DiskFileItemFactory();
    // sets memory threshold - beyond which files are stored in disk 
    factory.setSizeThreshold(MEMORY_THRESHOLD);
    // sets temporary location to store files
    factory.setRepository(new File(System.getProperty("java.io.tmpdir")));

    ServletFileUpload upload = new ServletFileUpload(factory);

    // sets maximum size of upload file
    upload.setFileSizeMax(MAX_FILE_SIZE);

    // sets maximum size of request (include file + form data)
    upload.setSizeMax(MAX_REQUEST_SIZE);

    // constructs the directory path to store upload file
    // this path is relative to application's directory
    String uploadPath = getServletContext().getRealPath("") + File.separator + UPLOAD_DIRECTORY;

    // creates the directory if it does not exist
    File uploadDir = new File(uploadPath);
    if (!uploadDir.exists()) {
        uploadDir.mkdir();
    }

    try {

        List<FileItem> formItems = upload.parseRequest(request);

        if (formItems != null && formItems.size() > 0) {
            // iterates over form's fields
            for (FileItem item : formItems) {
                // processes only fields that are not form fields
                if (!item.isFormField()) {
                    String fileName = new File(item.getName()).getName();
                    String filePath = uploadPath + File.separator + fileName;
                    File storeFile = new File(filePath);

                    // saves the file on disk
                    item.write(storeFile);
                    request.setAttribute("msg", UPLOAD_DIRECTORY + "/" + fileName);
                    request.setAttribute("message",
                            "Upload has been done successfully >>" + UPLOAD_DIRECTORY + "/" + fileName);
                }
            }
        }
    } catch (Exception ex) {
        request.setAttribute("message", "There was an error: " + ex.getMessage());
    }
    // redirects client to message page
    getServletContext().getRequestDispatcher("/message.jsp").forward(request, response);
}

From source file:com.artofsolving.jodconverter.web.DocumentConverterServlet.java

protected void doPost(HttpServletRequest request, HttpServletResponse response)
        throws IOException, ServletException {
    ApplicationContext applicationContext = WebApplicationContextUtils
            .getRequiredWebApplicationContext(getServletContext());
    ServletFileUpload fileUpload = (ServletFileUpload) applicationContext.getBean("fileUpload");
    DocumentConverter converter = (DocumentConverter) applicationContext.getBean("documentConverter");
    DocumentFormatRegistry registry = (DocumentFormatRegistry) applicationContext
            .getBean("documentFormatRegistry");

    if (!ServletFileUpload.isMultipartContent(request)) {
        throw new IllegalArgumentException("request is not multipart");
    }//from www .ja  v  a2  s  .  c o  m

    // determine output format based on the request uri
    String outputExtension = FilenameUtils.getExtension(request.getRequestURI());
    DocumentFormat outputFormat = registry.getFormatByFileExtension(outputExtension);
    if (outputFormat == null) {
        throw new IllegalArgumentException("invalid outputFormat: " + outputExtension);
    }

    FileItem inputFileUpload = getInputFileUpload(request, fileUpload);
    if (inputFileUpload == null) {
        throw new IllegalArgumentException("inputDocument is null");
    }
    String inputExtension = FilenameUtils.getExtension(inputFileUpload.getName());
    DocumentFormat inputFormat = registry.getFormatByFileExtension(inputExtension);

    response.setContentType(outputFormat.getMimeType());
    String fileName = FilenameUtils.getBaseName(inputFileUpload.getName()) + "."
            + outputFormat.getFileExtension();
    response.setHeader("Content-Disposition", "inline; filename=" + fileName);
    //response.setContentLength(???);

    converter.convert(inputFileUpload.getInputStream(), inputFormat, response.getOutputStream(), outputFormat);
}