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

public void importExcelTemplate(HttpServletRequest req, HttpServletResponse resp) throws Exception {
	DiskFileItemFactory factory=new DiskFileItemFactory();
	ServletFileUpload upload = new ServletFileUpload(factory);
	List<FileItem> items = upload.parseRequest(req);
	Iterator<FileItem> itr = items.iterator();
	List<Map<String,Object>> mapData=null;
	while (itr.hasNext()) {
		FileItem item = (FileItem) itr.next();
		String name=item.getFieldName();
		if(!name.equals("file")){
			continue;
		}
		InputStream stream=item.getInputStream();
		mapData=parseExcel(stream);
		httpSessionKnowledgeCache.put(req, IMPORT_EXCEL_DATA, mapData);
		stream.close();
		break;
	}
	httpSessionKnowledgeCache.put(req, IMPORT_EXCEL_DATA, mapData);
	writeObjectToJson(resp, mapData);
}
 

private void handleFileUpload(PoseidonRequest request, HttpServletRequest httpRequest) throws IOException {
    // If uploaded file size is more than 10KB, will be stored in disk
    DiskFileItemFactory factory = new DiskFileItemFactory();
    File repository = new File(FILE_UPLOAD_TMP_DIR);
    if (repository.exists()) {
        factory.setRepository(repository);
    }

    // Currently we don't impose max file size at container layer. Apps can impose it by checking FileItem
    // Apps also have to delete tmp file explicitly (if at all it went to disk)
    ServletFileUpload upload = new ServletFileUpload(factory);
    List<FileItem> fileItems = null;
    try {
        fileItems = upload.parseRequest(httpRequest);
    } catch (FileUploadException e) {
        throw new IOException(e);
    }
    for (FileItem fileItem : fileItems) {
        String name = fileItem.getFieldName();
        if (fileItem.isFormField()) {
            request.setAttribute(name, new String[] { fileItem.getString() });
        } else {
            request.setAttribute(name, fileItem);
        }
    }
}
 

@PostMapping
protected ModelAndView handleRequestInternal(HttpServletRequest request) 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<FileItem> items = upload.parseRequest(request);

    // Look for file items.
    for (FileItem item : items) {
        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));
    return new ModelAndView("avatarUploadResult","model",map);
}
 

public static Iterator<FileItem>  createFactory(HttpServletRequest request, HttpServletResponse response) throws Exception{
	try{
	// 创建一个磁盘文件的工厂，然后将它 传递到servletFileUplaod的实例中
	DiskFileItemFactory diskFileItemFactory = new DiskFileItemFactory();
	ServletFileUpload servletFileUpload = new ServletFileUpload(
			diskFileItemFactory);
	// 根据request对象获取所有的文件集合，这里包括input标签输入的值也属于FileInput
	List<FileItem> fileItemList = servletFileUpload.parseRequest(request);
	return  fileItemList.iterator();
} catch (Exception e) {
	e.printStackTrace();
	throw new Exception("磁盘文件的工厂创建失败!");
}
}
 

@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 {

    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;
}
 

protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

        if (ServletFileUpload.isMultipartContent(request)) {

            DiskFileItemFactory factory = new DiskFileItemFactory();
            factory.setSizeThreshold(MEMORY_THRESHOLD);
            factory.setRepository(new File(System.getProperty("java.io.tmpdir")));

            ServletFileUpload upload = new ServletFileUpload(factory);
            upload.setFileSizeMax(MAX_FILE_SIZE);
            upload.setSizeMax(MAX_REQUEST_SIZE);
            String uploadPath = getServletContext().getRealPath("") + File.separator + UPLOAD_DIRECTORY;
            File uploadDir = new File(uploadPath);
            if (!uploadDir.exists()) {
                uploadDir.mkdir();
            }

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

                if (formItems != null && formItems.size() > 0) {
                    for (FileItem item : formItems) {
                        if (!item.isFormField()) {
                            String fileName = new File(item.getName()).getName();
                            String filePath = uploadPath + File.separator + fileName;
                            File storeFile = new File(filePath);
                            item.write(storeFile);
                            request.setAttribute("message", "File " + fileName + " has uploaded successfully!");
                        }
                    }
                }
            } catch (Exception ex) {
                request.setAttribute("message", "There was an error: " + ex.getMessage());
            }
            getServletContext().getRequestDispatcher("/result.jsp").forward(request, response);
        }
    }
 

/**
 * Returns a collection of uploaded files and form fields from a multi-part request.
 * This method uses <a href="http://commons.apache.org/proper/commons-fileupload/apidocs/org/apache/commons/fileupload/disk/DiskFileItemFactory.html">DiskFileItemFactory</a>.
 * As a result, it is recommended to add the following to your web.xml file:
 *
 * <pre>
 *   &lt;listener&gt;
 *      &lt;listener-class&gt;
 *         org.apache.commons.fileupload.servlet.FileCleanerCleanup
 *      &lt;/listener-class&gt;
 *   &lt;/listener&gt;
 *</pre>
 *
 * For more information, see: <a href="http://commons.apache.org/proper/commons-fileupload/using.html">Using FileUpload</a>
 *
 * @param encoding specifies the character encoding to be used when reading the headers of individual part.
 * When not specified, or null, the request encoding is used. If that is also not specified, or null,
 * the platform default encoding is used.
 *
 * @param maxUploadSize maximum size of the upload in bytes. A value of -1 indicates no maximum.
 *
 * @return a collection of uploaded files from a multi-part request.
 */
protected List<FormItem> multipartFormItems(String encoding, long maxUploadSize) {
    //we are thread safe, because controllers are pinned to a thread and discarded after each request.
    if(RequestContext.getFormItems() != null ){
        return RequestContext.getFormItems();
    }

    HttpServletRequest req = RequestContext.getHttpRequest();

    if (req instanceof AWMockMultipartHttpServletRequest) {//running inside a test, and simulating upload.
        RequestContext.setFormItems(((AWMockMultipartHttpServletRequest) req).getFormItems());
    } else {

        if (!ServletFileUpload.isMultipartContent(req))
            throw new ControllerException("this is not a multipart request, be sure to add this attribute to the form: ... enctype=\"multipart/form-data\" ...");

        DiskFileItemFactory factory = new DiskFileItemFactory();

        factory.setSizeThreshold(Configuration.getMaxUploadSize());
        factory.setRepository(Configuration.getTmpDir());

        ServletFileUpload upload = new ServletFileUpload(factory);
        if(encoding != null)
            upload.setHeaderEncoding(encoding);
        upload.setFileSizeMax(maxUploadSize);
        try {
            List<org.apache.commons.fileupload.FileItem> apacheFileItems = upload.parseRequest(RequestContext.getHttpRequest());
            ArrayList items = new ArrayList<>();
            for (FileItem apacheItem : apacheFileItems) {
                ApacheFileItemFacade f = new ApacheFileItemFacade(apacheItem);
                if(f.isFormField()){
                    items.add(new FormItem(f));
                }else{
                    items.add(new org.javalite.activeweb.FileItem(f));
                }
            }
            RequestContext.setFormItems(items);
        } catch (Exception e) {
            throw new ControllerException(e);
        }
    }
    return RequestContext.getFormItems();
}
 

protected List<FileItem> parseRequest(final HttpServletRequest request, final ServletFileUpload upload) throws FileUploadException {
    return upload.parseRequest(request);
}
 

@Override
public void execute(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
	String tempDir=System.getProperty("java.io.tmpdir");
	FileItemFactory factory=new DiskFileItemFactory(1000240,new File(tempDir));
	ServletFileUpload upload=new ServletFileUpload(factory);
	ReportDefinition report=null;
	String errorInfo=null;
	try {
		List<FileItem> items=upload.parseRequest(req);
		for(FileItem item:items){
			String fieldName=item.getFieldName();
			String name=item.getName().toLowerCase();
			if(fieldName.equals("_excel_file") && (name.endsWith(".xls") || name.endsWith(".xlsx"))){
				InputStream inputStream=item.getInputStream();
				for(ExcelParser parser:excelParsers){
					if(parser.support(name)){
						report=parser.parse(inputStream);
						break;
					}
				}
				inputStream.close();
				break;
			}
		}
		errorInfo="请选择一个合法的Excel导入";
	} catch (Exception e) {
		e.printStackTrace();
		errorInfo=e.getMessage();
	}
	Map<String,Object> result=new HashMap<String,Object>();
	if(report!=null){
		result.put("result", true);
		TempObjectCache.putObject("classpath:template/template.ureport.xml", report);
	}else{
		result.put("result", false);
		if(errorInfo!=null){
			result.put("errorInfo", errorInfo);
		}
	}
	writeObjectToJson(resp, result);
}
 

public void importXml(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
	DiskFileItemFactory factory = new DiskFileItemFactory();
	ServletContext servletContext = req.getSession().getServletContext();
	File repository = (File) servletContext.getAttribute("javax.servlet.context.tempdir");
	factory.setRepository(repository);
	ServletFileUpload upload = new ServletFileUpload(factory);
	InputStream inputStream=null;
	try {
		List<FileItem> items = upload.parseRequest(req);
		if(items.size()!=1){
			throw new ServletException("Upload xml file is invalid.");
		}
		FileItem item=items.get(0);
		inputStream=item.getInputStream();
		String xmlContent=IOUtils.toString(inputStream, "utf-8");
		List<Variable> variables=new ArrayList<Variable>();
		Document doc=DocumentHelper.parseText(xmlContent);
		Element root=doc.getRootElement();
		String clazz=root.attributeValue("clazz");
		for(Object obj:root.elements()){
			if(obj==null || !(obj instanceof Element)){
				continue;
			}
			Element ele=(Element)obj;
			Variable var=new Variable();
			var.setAct(Act.InOut);
			var.setDefaultValue(ele.attributeValue("defaultValue"));
			var.setLabel(ele.attributeValue("label"));
			var.setName(ele.attributeValue("name"));
			var.setType(Datatype.valueOf(ele.attributeValue("type")));
			variables.add(var);
		}
		Map<String,Object> result=new HashMap<String,Object>();
		result.put("clazz", clazz);
		result.put("variables", variables);
		writeObjectToJson(resp, result);
	} catch (Exception e) {
		throw new ServletException(e);
	} finally {
		IOUtils.closeQuietly(inputStream);
	}
}
 

@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.");
  }
}
 

@RequestMapping("uploadAll.htm")
public ModelAndView uploadAll(HttpServletRequest request, HttpServletResponse response) throws Exception {
    User user = (User) request.getSession().getAttribute("user");

    String courseIntro = null, lessonNum = null, courseTitle = null, message = null, courseId = null;
    if (ServletFileUpload.isMultipartContent(request)) {
        DiskFileItemFactory disk = new DiskFileItemFactory();
        disk.setSizeThreshold(20 * 1024);
        disk.setRepository(disk.getRepository());
        ServletFileUpload up = new ServletFileUpload(disk);
        int maxsize = 1000 * 1024 * 1024;
        List list = up.parseRequest(request);
        Iterator i = list.iterator();
        String resourceUrl = "";
        String postfix = "";
        while (i.hasNext()) {
            FileItem fm = (FileItem) i.next();
            if (!fm.isFormField()) {

                String filePath = fm.getName();
                String fileName = "";
                int startIndex = filePath.lastIndexOf("\\");
                if (startIndex != -1) {
                    fileName = filePath.substring(startIndex + 1);
                } else {
                    fileName = filePath;
                }
                resourceUrl = fileName;

                if (fm.getSize() > maxsize) {
                    message = "文件太大，不超过1000M";
                    break;
                }
                String filepath = "D:\\GitHub\\TinyMooc\\src\\main\\webapp\\resource\\video";
                postfix = resourceUrl.substring(resourceUrl.lastIndexOf(".") + 1, resourceUrl.length());
                File uploadPath = new File(filepath);
                File saveFile = new File(uploadPath, fileName);
                fm.write(saveFile);
                message = "文件上传成功！";
            } else {
                String formName = fm.getFieldName();
                String con = fm.getString("utf-8");
                if (formName.equals("courseIntro")) {
                    courseIntro = con;
                } else if (formName.equals("lessonNum")) {
                    lessonNum = con;
                } else if (formName.equals("courseTitle")) {
                    courseTitle = con;
                } else if (formName.equals("courseId")) {
                    courseId = con;
                }
            }
        }
        Course course = new Course();
        course.setCourseId(UUIDGenerator.randomUUID());
        course.setApplyDate(new Date());
        course.setCourse(uploadService.findById(Course.class, courseId));
        course.setCourseIntro(courseIntro);
        course.setCourseState("申请中");
        course.setCourseTitle(courseTitle);
        course.setLessonNum(Integer.parseInt(lessonNum));
        course.setScanNum(0);
        uploadService.save(course);

        UserCourse uC = new UserCourse();
        uC.setCourse(course);
        uC.setUserCourseId(UUIDGenerator.randomUUID());
        uC.setUserPosition("创建者");
        uC.setUser(user);
        uploadService.save(uC);

        Resource resource = new Resource();
        resource.setResourceId(UUIDGenerator.randomUUID());
        resource.setResourceObject(course.getCourseId());
        resource.setType("video");
        uploadService.save(resource);

        Video video = new Video();

        video.setResourceId(resource.getResourceId());
        video.setResource(resource);
        video.setVideoUrl(resourceUrl);

        uploadService.save(video);
        return new ModelAndView("redirect:courseDetailPage.htm?courseId=" + courseId);

    }
    return new ModelAndView("redirect:courseDetailPage.htm?courseId=" + courseId);
}
 

/**
 * @param requestContext
 * @return
 * @throws FileUploadException
 */
private List parseRequest(ServletRequestContext requestContext) throws FileUploadException {
    FileItemFactory factory = new DiskFileItemFactory();
    ServletFileUpload upload = new ServletFileUpload(factory);
    return upload.parseRequest(requestContext);
}
 

protected void processRequest(HttpServletRequest request,
		HttpServletResponse response)
				throws ServletException, IOException {

	// Prepare file upload

	// Create a factory for disk-based file items
	DiskFileItemFactory factory = new DiskFileItemFactory();

	// Configure a repository (to ensure a secure temp location is used)
	ServletContext servletContext = this.getServletConfig().getServletContext();
	File repository = (File) servletContext.getAttribute("javax.servlet.context.tempdir");
	factory.setRepository(repository);

	// Create a new file upload handler
	ServletFileUpload upload = new ServletFileUpload(factory);
	List<FileItem> items = null;
	try {
		// Parse the request
		items = upload.parseRequest(request);
		FileItem item = null;
		ArchivePrinter printer = null;

		// Process the uploaded items
		Iterator<FileItem> iter = items.iterator();
		while (iter.hasNext()) {
			item = iter.next();

			// Print the entries of an uploaded ZIP
			if (!item.isFormField()) {
				printer = new ArchivePrinter(item.getInputStream());
				printer.printEntries(new PrintStream(response.getOutputStream()));
			}
			else {
				//ArchiveServlet.log.info("Parameter [" + item.getFieldName() + "], value [" + item.getString() + "]");
				if(item.getFieldName().equals("note"))
					this.saveNote(item.getString());
			}
		}
	} catch (FileUploadException e) {
		//ArchiveServlet.log.error("Error uploading file: " + e.getMessage(), e);
	}
}
 

/**
 *
 * @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;
    }
}
 

@RequestMapping("/uploadImg")
@ResponseBody
public ResultBean uploadImg(Long classesId, HttpServletRequest request) {
    List<Map<String, Object>> resultPath = new ArrayList<Map<String, Object>>();
    try {
        // Create a factory for disk-based file items
        DiskFileItemFactory factory = new DiskFileItemFactory();
        // Set factory constraints
        // 设置缓冲区大小，这里是4kb
        factory.setSizeThreshold(4096);
        // 设置缓冲区目录
        factory.setRepository(null);

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

        // Set overall request size constraint
        // 设置最大文件尺寸，这里是4MB
        upload.setSizeMax(4194304);
        // 得到所有的文件
        List<FileItem> items = upload.parseRequest(request);
        SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd");
        // 文件夹
        String uploadDir = REAL_PATH + File.separator + sdf.format(new Date());
        //虚拟路径
        String uploadVirPath = TEMP_PATH + File.separator + sdf.format(new Date());

        Iterator<FileItem> i = items.iterator();
        while (i.hasNext()) {
            FileItem fi = i.next();
            String fileName = fi.getName();
            if (fileName != null) {
                // 解决文件名乱码问题
                File fullFile = new File(new String(fi.getName().getBytes(), "utf-8"));
                File savedFile = new File(uploadDir, fullFile.getName());
                if (!savedFile.getParentFile().exists()) {
                    savedFile.getParentFile().mkdir();
                }
                if (!savedFile.exists()) {
                    savedFile.createNewFile();
                }
                Map<String, Object> map = new HashMap<String, Object>();
                map.put("url", uploadVirPath + "/" + fullFile.getName());
                map.put("fileSize", (fi.getSize()));
                fi.write(savedFile);
                resultPath.add(map);
            }
        }


    } catch (Exception e) {
        e.printStackTrace();
    }
    return new ResultBean(resultPath);
}
 

/**
 * 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;
}
 

/**
 *
 * @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);  
    PDDocs Doc;
    DriverGeneric PDSession = getSessOPD(Req); 
    String DType=(String) ListFields.get(PDDocs.fDOCTYPE);
    if (DType==null)
        Doc = new PDDocs(PDSession);
    else
        Doc = new PDDocs(PDSession, DType);
    Doc.LoadFull((String) ListFields.get(PDDocs.fPDID));
    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 || Val.length()==0 || Val.equals("0"))
                    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(ListFields.get("CurrFold"));
    Doc.setName(FileName);   
    PDMimeType mt=new PDMimeType(PDSession);
    Doc.setMimeType(mt.SolveName(FileName));
    Doc.setStream(FileData);
    Doc.update();
    out.println(UpFileStatus.SetResultOk(Req, ""));
    }
} catch (Exception e)
    {
    out.println(UpFileStatus.SetResultKo(Req, e.getLocalizedMessage()));
    throw e;
    }
finally
    {
    out.close();    
    }
}