Java Code Examples for org.apache.commons.fileupload.servlet.ServletFileUpload#isMultipartContent()

/**
 * Wrap a request with an object aware of the current repository and application defaults.
 *
 * @param repository currently connected repository
 * @param request    current request
 * @param defaults   application default parameter values
 * @throws RepositoryException if there is an issue retrieving the parameter map
 * @throws IOException         if there is an issue retrieving the parameter map
 * @throws FileUploadException if there is an issue retrieving the parameter map
 */
public WorkbenchRequest(Repository repository, HttpServletRequest request, Map<String, String> defaults)
		throws RepositoryException, IOException, FileUploadException {
	super(request);
	this.defaults = defaults;
	this.decoder = new ValueDecoder(repository,
			(repository == null) ? SimpleValueFactory.getInstance() : repository.getValueFactory());
	String url = request.getRequestURL().toString();
	if (ServletFileUpload.isMultipartContent(this)) {
		parameters = getMultipartParameterMap();
	} else if (request.getQueryString() == null && url.contains(";")) {
		parameters = getUrlParameterMap(url);
	}
}
 

private void doCheck(RequestState state) throws ServletException, IOException {
    try {
        if (!ServletFileUpload.isMultipartContent(state.request))
            processQueryRequest(state);
        else
            processNonQueryRequest(state);
        processCheck(state);
        processResponse(state);
    } finally {
        state.reset();
    }
}
 

@PostMapping
protected String handlePost(RedirectAttributes redirectAttributes,
                            HttpServletRequest request
) {
    Map<String, Object> map = new HashMap<String, Object>();

    try {
        if (ServletFileUpload.isMultipartContent(request)) {

            FileItemFactory factory = new DiskFileItemFactory();
            ServletFileUpload upload = new ServletFileUpload(factory);
            List<?> items = upload.parseRequest(request);
            for (Object o : items) {
                FileItem item = (FileItem) o;

                if ("file".equals(item.getFieldName()) && !StringUtils.isBlank(item.getName())) {
                    if (item.getSize() > MAX_PLAYLIST_SIZE_MB * 1024L * 1024L) {
                        throw new Exception("The playlist file is too large. Max file size is " + MAX_PLAYLIST_SIZE_MB + " MB.");
                    }
                    String playlistName = FilenameUtils.getBaseName(item.getName());
                    String fileName = FilenameUtils.getName(item.getName());
                    String username = securityService.getCurrentUsername(request);
                    Playlist playlist = playlistService.importPlaylist(username, playlistName, fileName,
                            item.getInputStream(), null);
                    map.put("playlist", playlist);
                }
            }
        }
    } catch (Exception e) {
        map.put("error", e.getMessage());
    }

    redirectAttributes.addFlashAttribute("model", map);
    return "redirect:importPlaylist";
}
 

@Override
protected ModelAndView handleRequestInternal(HttpServletRequest request, HttpServletResponse response) throws Exception {
    Map<String, Object> map = new HashMap<String, Object>();

    try {
        if (ServletFileUpload.isMultipartContent(request)) {

            FileItemFactory factory = new DiskFileItemFactory();
            ServletFileUpload upload = new ServletFileUpload(factory);
            List<?> items = upload.parseRequest(request);
            for (Object o : items) {
                FileItem item = (FileItem) o;

                if ("file".equals(item.getFieldName()) && !StringUtils.isBlank(item.getName())) {
                    if (item.getSize() > MAX_PLAYLIST_SIZE_MB * 1024L * 1024L) {
                        throw new Exception("The playlist file is too large. Max file size is " + MAX_PLAYLIST_SIZE_MB + " MB.");
                    }
                    String playlistName = FilenameUtils.getBaseName(item.getName());
                    String fileName = FilenameUtils.getName(item.getName());
                    String format = StringUtils.lowerCase(FilenameUtils.getExtension(item.getName()));
                    String username = securityService.getCurrentUsername(request);
                    Playlist playlist = playlistService.importPlaylist(username, playlistName, fileName, format, item.getInputStream(), null);
                    map.put("playlist", playlist);
                }
            }
        }
    } catch (Exception e) {
        map.put("error", e.getMessage());
    }

    ModelAndView result = super.handleRequestInternal(request, response);
    result.addObject("model", map);
    return result;
}
 

public void doFilter (ServletRequest request, ServletResponse response, FilterChain chain ) throws IOException,	ServletException {
    if (!ServletFileUpload.isMultipartContent((HttpServletRequest)request)) {
        chain.doFilter(new MultiReadHttpServletRequestWrapper((HttpServletRequest) request), response);
    } else {
        chain.doFilter(request, response);
    }
}
 

@Override
protected ModelAndView handleRequestInternal(HttpServletRequest request, HttpServletResponse response) throws Exception {

    String username = securityService.getCurrentUsername(request);

    // Check that we have a file upload request.
    if (!ServletFileUpload.isMultipartContent(request)) {
        throw new Exception("Illegal request.");
    }

    Map<String, Object> map = new HashMap<String, Object>();
    FileItemFactory factory = new DiskFileItemFactory();
    ServletFileUpload upload = new ServletFileUpload(factory);
    List<?> items = upload.parseRequest(request);

    // Look for file items.
    for (Object o : items) {
        FileItem item = (FileItem) o;

        if (!item.isFormField()) {
            String fileName = item.getName();
            byte[] data = item.get();

            if (StringUtils.isNotBlank(fileName) && data.length > 0) {
                createAvatar(fileName, data, username, map);
            } else {
                map.put("error", new Exception("Missing file."));
                LOG.warn("Failed to upload personal image. No file specified.");
            }
            break;
        }
    }

    map.put("username", username);
    map.put("avatar", settingsService.getCustomAvatar(username));
    ModelAndView result = super.handleRequestInternal(request, response);
    result.addObject("model", map);
    return result;
}
 

private boolean isMultipartRequest(HttpServletRequest request) {
    return ServletFileUpload.isMultipartContent(request);
}
 

protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
	
	if (ServletFileUpload.isMultipartContent(request)) {

		try {
			ServletFileUpload propertiesFile = new ServletFileUpload();
			FileItemIterator fii = propertiesFile.getItemIterator(request);

			while(fii.hasNext()) {
				FileItemStream item = fii.next();
				String name = item.getFieldName();
				InputStream is = item.openStream();
				
				if (item.isFormField()) {
					return;
					
				} else {

					if (is != null) {
						
						Properties props = new Properties();
						props.load(is);
						
						// Set the appropriate pingid.properties values to session
						HttpSession session = request.getSession(false);
						session.setAttribute("pingid_org_alias", props.getProperty("org_alias"));
						session.setAttribute("pingid_token", props.getProperty("token"));
						session.setAttribute("pingid_use_base64_key", props.getProperty("use_base64_key"));
						session.setAttribute("pingid_url", props.getProperty("idp_url"));

						// Set the results of the action to the request attributes
						request.setAttribute("status", "OK");
						request.setAttribute("statusMessage", "Successfully imported pingid.properties");
						
						RequestDispatcher requestDispatcher;
						requestDispatcher = request.getRequestDispatcher("/index.jsp");
						requestDispatcher.forward(request, response);
					}
					return;					
				}
			}
		} catch (FileUploadException ex) {

			throw new ServletException(ex.getMessage());
		}

	} else {
           return;					
	}
}
 

/**
    * 파일을 Upload 처리한다.
    *
    * @param request
    * @param where
    * @param maxFileSize
    * @return
    * @throws Exception
    */
   public static List<HeritFormBasedFileVO> uploadFiles(HttpServletRequest request, String where, long maxFileSize) throws Exception {
List<HeritFormBasedFileVO> list = new ArrayList<HeritFormBasedFileVO>();

// Check that we have a file upload request
boolean isMultipart = ServletFileUpload.isMultipartContent(request);

if (isMultipart) {
    // Create a new file upload handler
    ServletFileUpload upload = new ServletFileUpload();
    upload.setFileSizeMax(maxFileSize);	// SizeLimitExceededException

    // Parse the request
    FileItemIterator iter = upload.getItemIterator(request);
    while (iter.hasNext()) {
        FileItemStream item = iter.next();
        String name = item.getFieldName();
        InputStream stream = item.openStream();
        if (item.isFormField()) {
            ////System.out.println("Form field '" + name + "' with value '" + Streams.asString(stream) + "' detected.");
            Logger.getLogger(HeritFormBasedFileUtil.class).info("Form field '" + name + "' with value '" + Streams.asString(stream) + "' detected.");
        } else {
            ////System.out.println("File field '" + name + "' with file name '" + item.getName() + "' detected.");
            Logger.getLogger(HeritFormBasedFileUtil.class).info("File field '" + name + "' with file name '" + item.getName() + "' detected.");

            if ("".equals(item.getName())) {
        	continue;
            }

            // Process the input stream
            HeritFormBasedFileVO vo = new HeritFormBasedFileVO();

            String tmp = item.getName();

            if (tmp.lastIndexOf("\\") >= 0) {
        	tmp = tmp.substring(tmp.lastIndexOf("\\") + 1);
            }

            vo.setFileName(tmp);
            vo.setContentType(item.getContentType());
            vo.setServerSubPath(getTodayString());
            vo.setPhysicalName(getPhysicalFileName());

            if (tmp.lastIndexOf(".") >= 0) {
        	 vo.setPhysicalName(vo.getPhysicalName() + tmp.substring(tmp.lastIndexOf(".")));
            }

            long size = saveFile(stream, new File(HeritWebUtil.filePathBlackList(where) + SEPERATOR + vo.getServerSubPath() + SEPERATOR + vo.getPhysicalName()));

            vo.setSize(size);

            list.add(vo);
        }
    }
} else {
    throw new IOException("form's 'enctype' attribute have to be 'multipart/form-data'");
}

return list;
   }
 

/**
    * 파일을 Upload 처리한다.
    *
    * @param request
    * @param where
    * @param maxFileSize
    * @return
    * @throws Exception
    */
   public static List<HeritFormBasedFileVO> uploadFiles(HttpServletRequest request, String where, long maxFileSize) throws Exception {
List<HeritFormBasedFileVO> list = new ArrayList<HeritFormBasedFileVO>();

// Check that we have a file upload request
boolean isMultipart = ServletFileUpload.isMultipartContent(request);

if (isMultipart) {
    // Create a new file upload handler
    ServletFileUpload upload = new ServletFileUpload();
    upload.setFileSizeMax(maxFileSize);	// SizeLimitExceededException

    // Parse the request
    FileItemIterator iter = upload.getItemIterator(request);
    while (iter.hasNext()) {
        FileItemStream item = iter.next();
        String name = item.getFieldName();
        InputStream stream = item.openStream();
        if (item.isFormField()) {
            ////System.out.println("Form field '" + name + "' with value '" + Streams.asString(stream) + "' detected.");
            Logger.getLogger(HeritFormBasedFileUtil.class).info("Form field '" + name + "' with value '" + Streams.asString(stream) + "' detected.");
        } else {
            ////System.out.println("File field '" + name + "' with file name '" + item.getName() + "' detected.");
            Logger.getLogger(HeritFormBasedFileUtil.class).info("File field '" + name + "' with file name '" + item.getName() + "' detected.");

            if ("".equals(item.getName())) {
        	continue;
            }

            // Process the input stream
            HeritFormBasedFileVO vo = new HeritFormBasedFileVO();

            String tmp = item.getName();

            if (tmp.lastIndexOf("\\") >= 0) {
        	tmp = tmp.substring(tmp.lastIndexOf("\\") + 1);
            }

            vo.setFileName(tmp);
            vo.setContentType(item.getContentType());
            vo.setServerSubPath(getTodayString());
            vo.setPhysicalName(getPhysicalFileName());

            if (tmp.lastIndexOf(".") >= 0) {
        	 vo.setPhysicalName(vo.getPhysicalName() + tmp.substring(tmp.lastIndexOf(".")));
            }

            long size = saveFile(stream, new File(HeritWebUtil.filePathBlackList(where) + SEPERATOR + vo.getServerSubPath() + SEPERATOR + vo.getPhysicalName()));

            vo.setSize(size);

            list.add(vo);
        }
    }
} else {
    throw new IOException("form's 'enctype' attribute have to be 'multipart/form-data'");
}

return list;
   }
 

/**
 *
 * @param Req
 * @throws Exception
 */
@Override
protected void ProcessPage(HttpServletRequest Req, PrintWriter out) throws Exception
{
String FileName=null;
InputStream FileData=null;
HashMap <String, String>ListFields=new HashMap();
try {
DiskFileItemFactory factory = new DiskFileItemFactory();
factory.setSizeThreshold(1000000);
ServletFileUpload upload = new ServletFileUpload(factory);
boolean isMultipart = ServletFileUpload.isMultipartContent(Req);
List items = upload.parseRequest(Req);
Iterator iter = items.iterator();
while (iter.hasNext())
    {
    FileItem item = (FileItem) iter.next();
    if (item.isFormField())
        ListFields.put(item.getFieldName(), item.getString());
    else 
        {
        FileName=item.getName();
        FileData=item.getInputStream();
        }
    }   
if (!isMultipart || FileData==null)
    {
    out.println("KO");
    }
else
    { 
    ListFields=GetDat(Req);      
    String ParentId=ListFields.get("CurrFold");    
    String RISType=ListFields.get("RISType");    
    PDDocsRIS D=new PDDocsRIS(SParent.getSessOPD(Req), RISType);
    D.ImportFileRIS(ParentId, FileData);    
    out.println(UpFileStatus.SetResultOk(Req, ""));
    FileData.close();
    }
} catch (Exception e)
    {
    out.println(UpFileStatus.SetResultKo(Req, e.getLocalizedMessage()));
    throw e;
    }
}
 

/**
 *
 * @param Req
 * @throws Exception
 */
@Override
protected void ProcessPage(HttpServletRequest Req, PrintWriter out) throws Exception
{
String FileName=null;
InputStream FileData=null;
try {
DiskFileItemFactory factory = new DiskFileItemFactory();
factory.setSizeThreshold(1000000);
ServletFileUpload upload = new ServletFileUpload(factory);
boolean isMultipart = ServletFileUpload.isMultipartContent(Req);
List items = upload.parseRequest(Req);
Iterator iter = items.iterator();
while (iter.hasNext())
    {
    FileItem item = (FileItem) iter.next();
    if (!item.isFormField())
        {
        FileName=item.getName();
        FileData=item.getInputStream();
        break;
        }
    }        
DriverGeneric PDSession=SParent.getSessOPD(Req);       
DocumentBuilder DB = DocumentBuilderFactory.newInstance().newDocumentBuilder();
Document XMLObjects = DB.parse(FileData);
NodeList OPDObjectList = XMLObjects.getElementsByTagName(ObjPD.XML_OPDObject);
Node OPDObject;
ObjPD Obj2Build;
int Tot=0;
for (int i=0; i<OPDObjectList.getLength(); i++)
    {
    OPDObject = OPDObjectList.item(i);
    Obj2Build=PDSession.BuildObj(OPDObject);
    Obj2Build.ProcesXMLNode(OPDObject);
    Tot++;
    }
DB.reset();    
out.println(UpFileStatus.SetResultOk(Req, "Total="+Tot));
FileData.close();
} catch (Exception e)
    {
    out.println(UpFileStatus.SetResultKo(Req, e.getLocalizedMessage()));
    throw e;
    }
}
 

@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException,
    IOException {
  // Process only multipart requests.
  if (ServletFileUpload.isMultipartContent(request)) {
    // Create a factory for disk-based file items.
    FileItemFactory factory = new DiskFileItemFactory();

    // Create a new file upload handler.
    ServletFileUpload upload = new ServletFileUpload(factory);

    // Parse the request.
    try {
      @SuppressWarnings("unchecked")
      List<FileItem> items = upload.parseRequest(request);
      AttachmentId id = null;
      String waveRefStr = null;
      FileItem fileItem = null;
      for (FileItem item : items) {
        // Process only file upload - discard other form item types.
        if (item.isFormField()) {
          if (item.getFieldName().equals("attachmentId")) {
            id = AttachmentId.deserialise(item.getString());
          }
          if (item.getFieldName().equals("waveRef")) {
            waveRefStr = item.getString();
          }
        } else {
          fileItem = item;
        }
      }

      if (id == null) {
        response.sendError(HttpServletResponse.SC_BAD_REQUEST, "No attachment Id in the request.");
        return;
      }
      if (waveRefStr == null) {
        response.sendError(HttpServletResponse.SC_BAD_REQUEST, "No wave reference in request.");
        return;
      }

      WaveletName waveletName = AttachmentUtil.waveRef2WaveletName(waveRefStr);
      ParticipantId user = sessionManager.getLoggedInUser(request);
      boolean isAuthorized = waveletProvider.checkAccessPermission(waveletName, user);
      if (!isAuthorized) {
        response.sendError(HttpServletResponse.SC_FORBIDDEN);
        return;
      }

      String fileName = fileItem.getName();
      // Get only the file name not whole path.
      if (fileName != null) {
        fileName = FilenameUtils.getName(fileName);
        service.storeAttachment(id, fileItem.getInputStream(), waveletName, fileName, user);
        response.setStatus(HttpServletResponse.SC_CREATED);
        String msg =
            String.format("The file with name: %s and id: %s was created successfully.",
                fileName, id);
        LOG.fine(msg);
        response.getWriter().print("OK");
        response.flushBuffer();
      }
    } catch (Exception e) {
      LOG.severe("Upload error", e);
      response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR,
          "An error occurred while upload the file : " + e.getMessage());
    }
  } else {
    LOG.severe("Request contents type is not supported by the servlet.");
    response.sendError(HttpServletResponse.SC_UNSUPPORTED_MEDIA_TYPE,
        "Request contents type is not supported by the servlet.");
  }
}
 

public static final HashMap UploadFile(HttpServletRequest request, HttpServletResponse response, String filepaths) throws Exception {
    HashMap params = new HashMap();
    String pathType = "images";
    if (!(filepaths.equals("")))
        pathType = filepaths;
    String readPath = "";
    String contextPath = "";
    if ((readPath == null) || (readPath.equals("")))
        readPath = request.getSession().getServletContext().getRealPath("");

    if ((contextPath == null) || (contextPath.equals("")))
        contextPath = request.getContextPath();

    String savePhotoPath = mkdirFile(readPath, pathType, true);
    if (ServletFileUpload.isMultipartContent(request)) {
        DiskFileItemFactory dff = new DiskFileItemFactory();
        dff.setSizeThreshold(1024000);
        ServletFileUpload sfu = new ServletFileUpload(dff);
        List fileItems = sfu.parseRequest(request);
        sfu.setFileSizeMax(5000000L);
        sfu.setSizeMax(10000000L);
        sfu.setHeaderEncoding("UTF-8");
        Iterator iter = fileItems.iterator();

        while (iter.hasNext()) {
            FileItem item = (FileItem) iter.next();
            if (item.isFormField()) {
                String name = item.getFieldName();
                String value = new String(item.getString().getBytes(
                        "ISO8859-1"), "utf-8");
                params.put(name, value);
            } else if ((item.getSize() > 0L) &&
                    (item.getName() != null)) {
                File fullFile = new File(item.getName());
                File fileOnServer = new File(savePhotoPath,
                        fullFile.getName());
                item.write(fileOnServer);
                String fileName2 = fileOnServer.getName();
                String fileType = fileName2.substring(fileName2
                        .lastIndexOf("."));
                String filepath = savePhotoPath + "/" +
                        new Date().getTime() + fileType;
                File newFile = new File(filepath);
                fileOnServer.renameTo(newFile);
                String returnString = filepath.substring(readPath
                        .length());
                params.put(item.getFieldName(), request.getRequestURL().toString().replace(request.getRequestURI(), "") + contextPath +
                        returnString);
            }
        }
    }

    return params;
}
 

/**
 * 上传验证,并初始化文件目录
 * 
 * @param request
 */
private String validateFields(HttpServletRequest request) {
	String errorInfo = "true";
	// boolean errorFlag = true;
	// 获取内容类型
	String contentType = request.getContentType();
	int contentLength = request.getContentLength();
	// 文件保存目录路径
	savePath = request.getSession().getServletContext().getRealPath("/") + basePath + "/";
	// 文件保存目录URL
	saveUrl = request.getContextPath() + "/" + basePath + "/";
	File uploadDir = new File(savePath);
	if (contentType == null || !contentType.startsWith("multipart")) {
		// TODO
		System.out.println("请求不包含multipart/form-data流");
		errorInfo = "请求不包含multipart/form-data流";
	} else if (maxSize < contentLength) {
		// TODO
		System.out.println("上传文件大小超出文件最大大小");
		errorInfo = "上传文件大小超出文件最大大小[" + maxSize + "]";
	} else if (!ServletFileUpload.isMultipartContent(request)) {
		// TODO
		errorInfo = "请选择文件";
	} else if (!uploadDir.isDirectory()) {// 检查目录
		// TODO
		errorInfo = "上传目录[" + savePath + "]不存在";
	} else if (!uploadDir.canWrite()) {
		// TODO
		errorInfo = "上传目录[" + savePath + "]没有写权限";
	} else if (!extMap.containsKey(dirName)) {
		// TODO
		errorInfo = "目录名不正确";
	} else {
		// .../basePath/dirName/
		// 创建文件夹
		savePath += dirName + "/";
		saveUrl += dirName + "/";
		File saveDirFile = new File(savePath);
		if (!saveDirFile.exists()) {
			saveDirFile.mkdirs();
		}
		// .../basePath/dirName/yyyyMMdd/
		SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd");
		String ymd = sdf.format(new Date());
		savePath += ymd + "/";
		saveUrl += ymd + "/";
		File dirFile = new File(savePath);
		if (!dirFile.exists()) {
			dirFile.mkdirs();
		}

		// 获取上传临时路径
		tempPath = request.getSession().getServletContext().getRealPath("/") + tempPath + "/";
		File file = new File(tempPath);
		if (!file.exists()) {
			file.mkdirs();
		}
	}

	return errorInfo;
}
 

/**
	 * 处理上传内容
	 * 
	 * @param request
	 * @param maxSize
	 * @return
	 */
//	@SuppressWarnings("unchecked")
	private Map<String, Object> initFields(HttpServletRequest request) {

		// 存储表单字段和非表单字段
		Map<String, Object> map = new HashMap<String, Object>();

		// 第一步：判断request
		boolean isMultipart = ServletFileUpload.isMultipartContent(request);
		// 第二步：解析request
		if (isMultipart) {
			// Create a factory for disk-based file items
			DiskFileItemFactory factory = new DiskFileItemFactory();

			// 阀值,超过这个值才会写到临时目录,否则在内存中
			factory.setSizeThreshold(1024 * 1024 * 10);
			factory.setRepository(new File(tempPath));

			// Create a new file upload handler
			ServletFileUpload upload = new ServletFileUpload(factory);

			upload.setHeaderEncoding("UTF-8");

			// 最大上传限制
			upload.setSizeMax(maxSize);

			/* FileItem */
			List<FileItem> items = null;
			// Parse the request
			try {
				items = upload.parseRequest(request);
			} catch (FileUploadException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}

			// 第3步：处理uploaded items
			if (items != null && items.size() > 0) {
				Iterator<FileItem> iter = items.iterator();
				// 文件域对象
				List<FileItem> list = new ArrayList<FileItem>();
				// 表单字段
				Map<String, String> fields = new HashMap<String, String>();
				while (iter.hasNext()) {
					FileItem item = iter.next();
					// 处理所有表单元素和文件域表单元素
					if (item.isFormField()) { // 表单元素
						String name = item.getFieldName();
						String value = item.getString();
						fields.put(name, value);
					} else { // 文件域表单元素
						list.add(item);
					}
				}
				map.put(FORM_FIELDS, fields);
				map.put(FILE_FIELDS, list);
			}
		}
		return map;
	}
 

/**
 * Uploads a file to a WebDAV server
 * @param request the request
 * @return the uploaded item
 * @throws IOException if there is any error reading the content of the file
 * @throws WebDavException if there is any error uploading the file to the WebDAV server
 * @throws InvalidParametersException if there is any error parsing the request
 */
@PostMapping("/upload")
public ResultOne<WebDavItem> uploadItem(HttpServletRequest request) throws IOException, WebDavException,
    InvalidParametersException {
    if (ServletFileUpload.isMultipartContent(request)) {
        ResultOne<WebDavItem> result = new ResultOne<>();
        try {
            ServletFileUpload upload = new ServletFileUpload();
            FileItemIterator iterator = upload.getItemIterator(request);
            String siteId = null;
            String profileId = null;
            String path = null;
            if (!iterator.hasNext()) {
                throw new InvalidParametersException("Request body is empty");
            }
            while (iterator.hasNext()) {
                FileItemStream item = iterator.next();
                String name = item.getFieldName();
                try(InputStream stream = item.openStream()) {
                    if (item.isFormField()) {
                        switch (name) {
                            case REQUEST_PARAM_SITEID:
                                siteId = Streams.asString(stream);
                                break;
                            case REQUEST_PARAM_PROFILE_ID:
                                profileId = Streams.asString(stream);
                                break;
                            case REQUEST_PARAM_PATH:
                                path = Streams.asString(stream);
                            default:
                                // Unknown parameter, just skip it...
                        }
                    } else {
                        String filename = item.getName();
                        if (StringUtils.isNotEmpty(filename)) {
                            filename = FilenameUtils.getName(filename);
                        }
                        result.setEntity(RESULT_KEY_ITEM,
                            webDavService.upload(siteId, profileId, path, filename, stream));
                        result.setResponse(ApiResponse.OK);
                    }
                }
            }
            return result;
        } catch (FileUploadException e) {
            throw new InvalidParametersException("The request body is invalid");
        }
    } else {
        throw new InvalidParametersException("The request is not multipart");
    }
}
 

private boolean AddDoc(HttpServletRequest Req) throws PDException, FileUploadException, IOException
{
String FileName=null;
InputStream FileData=null;
HashMap ListFields=new HashMap();
DiskFileItemFactory factory = new DiskFileItemFactory();
factory.setSizeThreshold(1000000);
ServletFileUpload upload = new ServletFileUpload(factory);
boolean isMultipart = ServletFileUpload.isMultipartContent(Req);
List items = upload.parseRequest(Req);
Iterator iter = items.iterator();
while (iter.hasNext())
    {
    FileItem item = (FileItem) iter.next();
    if (item.isFormField())
        ListFields.put(item.getFieldName(), item.getString());
    else 
        {
        FileName=item.getName();
        FileData=item.getInputStream();
        }
    }
String Acept=(String) ListFields.get("BOk");
if (Acept==null || Acept.length()==0)
    return(false);
DriverGeneric PDSession=SParent.getSessOPD(Req);
String DType=(String) ListFields.get(PDDocs.fDOCTYPE);
PDDocs Doc;
if (DType==null)
    Doc = new PDDocs(PDSession);
else
    Doc = new PDDocs(PDSession, DType);
Record Rec=Doc.getRecSum();
Rec.initList();
Attribute Attr=Rec.nextAttr();
while (Attr!=null)
    {
    if (!List.contains(Attr.getName()))
        {
        String Val=(String) ListFields.get(Attr.getName());
        if (Attr.getType()==Attribute.tBOOLEAN)
            {
            if(Val == null)
                Attr.setValue(false);
            else
                Attr.setValue(true);
            }
        else if(Val != null)
            {
            SParent.FillAttr(Req, Attr, Val, false);
            }
        }
    Attr=Rec.nextAttr();
    }
Doc.assignValues(Rec);
Doc.setParentId(getActFolderId(Req));
String RefFile=(String) ListFields.get(PDDocs.fNAME+"_");
if (RefFile!=null && RefFile.length()!=0)
    {
    Doc.setFile(RefFile);
    }
else
    {
    Doc.setName(FileName);
    PDMimeType mt=new PDMimeType(PDSession);
    Doc.setMimeType(mt.SolveName(FileName));
    Doc.setStream(FileData);
    }
Doc.insert();
return(true);
}
 

@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException,
    IOException {
  // Process only multipart requests.
  if (ServletFileUpload.isMultipartContent(request)) {
    // Create a factory for disk-based file items.
    FileItemFactory factory = new DiskFileItemFactory();

    // Create a new file upload handler.
    ServletFileUpload upload = new ServletFileUpload(factory);

    // Parse the request.
    try {
      @SuppressWarnings("unchecked")
      List<FileItem> items = upload.parseRequest(request);
      AttachmentId id = null;
      String waveRefStr = null;
      FileItem fileItem = null;
      for (FileItem item : items) {
        // Process only file upload - discard other form item types.
        if (item.isFormField()) {
          if (item.getFieldName().equals("attachmentId")) {
            id = AttachmentId.deserialise(item.getString());
          }
          if (item.getFieldName().equals("waveRef")) {
            waveRefStr = item.getString();
          }
        } else {
          fileItem = item;
        }
      }

      if (id == null) {
        response.sendError(HttpServletResponse.SC_BAD_REQUEST, "No attachment Id in the request.");
        return;
      }
      if (waveRefStr == null) {
        response.sendError(HttpServletResponse.SC_BAD_REQUEST, "No wave reference in request.");
        return;
      }

      WaveletName waveletName = AttachmentUtil.waveRef2WaveletName(waveRefStr);
      ParticipantId user = sessionManager.getLoggedInUser(request.getSession(false));
      boolean isAuthorized = waveletProvider.checkAccessPermission(waveletName, user);
      if (!isAuthorized) {
        response.sendError(HttpServletResponse.SC_FORBIDDEN);
        return;
      }

      // Get only the file name not whole path.
      if (fileItem != null && fileItem.getName()  != null) {
        String fileName = FilenameUtils.getName(fileItem.getName());
        service.storeAttachment(id, fileItem.getInputStream(), waveletName, fileName, user);
        response.setStatus(HttpServletResponse.SC_CREATED);
        String msg =
            String.format("The file with name: %s and id: %s was created successfully.",
                fileName, id);
        LOG.fine(msg);
        response.getWriter().print("OK");
        response.flushBuffer();
      }
    } catch (Exception e) {
      LOG.severe("Upload error", e);
      response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR,
          "An error occurred while upload the file : " + e.getMessage());
    }
  } else {
    LOG.severe("Request contents type is not supported by the servlet.");
    response.sendError(HttpServletResponse.SC_UNSUPPORTED_MEDIA_TYPE,
        "Request contents type is not supported by the servlet.");
  }
}
 

/**
 * Check if the given HTTP request has multipart content
 * 
 * @param request
 *            the HTTP request
 * @return true if it has multipart content, false otherwise
 */
public static boolean isMultipart( HttpServletRequest request )
{
    return ServletFileUpload.isMultipartContent( request );
}