Java FileUpload.parseRequest方法代碼示例

import org.apache.commons.fileupload.FileUpload; //導入方法依賴的package包/類
/**
 * extracts attachments from the http request.
 *
 * @param httpRequest
 *            request containing attachments DefaultMultipartHttpServletRequest is supported
 * @param request
 *            {@link Request}
 * @return ids of extracted attachments
 * @throws IOException
 *             throws exception if problems during attachments accessing occurred
 * @throws FileUploadException
 *             Exception.
 * @throws AttachmentIsEmptyException
 *             Thrown, when the attachment is of zero size.
 * @throws AuthorizationException
 *             in case there is no authenticated user
 */
private List<AttachmentResource> extractAttachments(HttpServletRequest httpRequest,
        Request request) throws FileUploadException, IOException,
        AttachmentIsEmptyException, AuthorizationException {
    List<AttachmentResource> result = new ArrayList<>();
    if (httpRequest.getContentType().startsWith(AttachmentResourceHelper.MULTIPART_FORM_DATA)) {
        FileItemFactory factory = new DiskFileItemFactory();
        FileUpload upload = new FileUpload(factory);
        List<FileItem> items = upload.parseRequest(new ServletRequestContext(httpRequest));
        for (FileItem file : items) {
            if (!file.isFormField()) {
                AttachmentTO attachmentTo = new AttachmentStreamTO(file.getInputStream(),
                        AttachmentStatus.UPLOADED);
                AttachmentResourceHelper.assertAttachmentSize(file.getContentType(),
                        file.getSize(), false);
                attachmentTo.setMetadata(new ContentMetadata());
                attachmentTo.getMetadata().setFilename(getFileName(file.getName()));
                attachmentTo.getMetadata().setContentSize(file.getSize());
                result.add(persistAttachment(request, attachmentTo));
            }
        }
    }
    return result;
}
 

import org.apache.commons.fileupload.FileUpload; //導入方法依賴的package包/類
/**
 * extracts attachments from the http request.
 *
 * @param httpRequest
 *            request containing attachments DefaultMultipartHttpServletRequest is supported
 * @param request
 *            {@link Request}
 * @return ids of extracted attachments
 * @throws MaxLengthReachedException
 *             attachment size is to large
 * @throws IOException
 *             throws exception if problems during attachments accessing occurred
 * @throws FileUploadException
 *             Exception.
 * @throws AttachmentIsEmptyException
 *             Thrown, when the attachment is of zero size.
 * @throws AuthorizationException
 *             in case there is no authenticated user
 */
private List<AttachmentResource> extractAttachments(HttpServletRequest httpRequest,
        Request request) throws MaxLengthReachedException, FileUploadException, IOException,
        AttachmentIsEmptyException, AuthorizationException {
    List<AttachmentResource> result = new ArrayList<AttachmentResource>();
    if (httpRequest.getContentType().startsWith(AttachmentResourceHelper.MULTIPART_FORM_DATA)) {
        FileItemFactory factory = new DiskFileItemFactory();
        FileUpload upload = new FileUpload(factory);
        List<FileItem> items = upload.parseRequest(new ServletRequestContext(httpRequest));
        for (FileItem file : items) {
            if (!file.isFormField()) {
                AttachmentTO attachmentTo = new AttachmentStreamTO(file.getInputStream(),
                        AttachmentStatus.UPLOADED);
                AttachmentResourceHelper.assertAttachmentSize(file.getContentType(),
                        file.getSize(), false);
                attachmentTo.setMetadata(new ContentMetadata());
                attachmentTo.getMetadata().setFilename(getFileName(file.getName()));
                attachmentTo.getMetadata().setContentSize(file.getSize());
                result.add(persistAttachment(request, attachmentTo));
            }
        }
    }
    return result;
}
 

import org.apache.commons.fileupload.FileUpload; //導入方法依賴的package包/類
/**
 * extracts attachments from the http request.
 *
 * @param httpRequest
 *            request containing attachments DefaultMultipartHttpServletRequest is supported
 * @param request
 *            {@link Request}
 * @return ids of extracted attachments
 * @throws MaxLengthReachedException
 *             attachment size is to large
 * @throws IOException
 *             throws exception if problems during attachments accessing occurred
 * @throws FileUploadException
 *             Exception.
 * @throws AuthorizationException
 *             in case there is no authenticated user
 */
private List<AttachmentResource> extractAttachments(HttpServletRequest httpRequest,
        Request request) throws MaxLengthReachedException, FileUploadException, IOException,
        AuthorizationException {
    List<AttachmentResource> result = new ArrayList<AttachmentResource>();
    if (httpRequest.getContentType().startsWith(AttachmentResourceHelper.MULTIPART_FORM_DATA)) {
        FileItemFactory factory = new DiskFileItemFactory();
        FileUpload upload = new FileUpload(factory);
        List<FileItem> items = upload.parseRequest(new ServletRequestContext(httpRequest));
        for (FileItem file : items) {
            if (!file.isFormField()) {
                AttachmentTO attachmentTo = new AttachmentStreamTO(file.getInputStream(),
                        AttachmentStatus.UPLOADED);
                AttachmentResourceHelper.assertAttachmentSize(file.getContentType(),
                        file.getSize(), false);
                attachmentTo.setMetadata(new ContentMetadata());
                attachmentTo.getMetadata().setFilename(getFileName(file.getName()));
                attachmentTo.getMetadata().setContentSize(file.getSize());
                result.add(persistAttachment(request, attachmentTo));
            }
        }
    }
    return result;
}
 

import org.apache.commons.fileupload.FileUpload; //導入方法依賴的package包/類
/**
 * extracts attachments from the http request.
 *
 * @param httpRequest
 *            request containing attachments DefaultMultipartHttpServletRequest is supported
 * @param request
 *            {@link Request}
 * @return ids of extracted attachments
 * @throws MaxLengthReachedException
 *             attachment size is to large
 * @throws IOException
 *             throws exception if problems during attachments accessing occurred
 * @throws FileUploadException
 *             Exception.
 * @throws AuthorizationException
 *             in case there is no authenticated user
 */
private List<AttachmentResource> extractAttachments(HttpServletRequest httpRequest,
        Request request) throws MaxLengthReachedException, FileUploadException, IOException,
        AuthorizationException {
    List<AttachmentResource> result = new ArrayList<AttachmentResource>();
    if (httpRequest.getContentType().startsWith(AttachmentResourceHelper.MULTIPART_FORM_DATA)) {
        FileItemFactory factory = new DiskFileItemFactory();
        FileUpload upload = new FileUpload(factory);
        List<FileItem> items = upload.parseRequest(new ServletRequestContext(httpRequest));
        for (FileItem file : items) {
            if (!file.isFormField()) {
                AttachmentTO attachmentTo = new AttachmentStreamTO(file.getInputStream(),
                        AttachmentStatus.UPLOADED);
                AttachmentResourceHelper.checkAttachmentSize(file);
                attachmentTo.setMetadata(new ContentMetadata());
                attachmentTo.getMetadata().setFilename(getFileName(file.getName()));
                attachmentTo.getMetadata().setContentSize(file.getSize());
                result.add(persistAttachment(request, attachmentTo));
            }
        }
    }
    return result;
}
 

import org.apache.commons.fileupload.FileUpload; //導入方法依賴的package包/類
/**
 * Handles a file contained in the specified {@code request}. If you use
 * FileUpload, please make sure to add the needed dependencies, i.e.
 * {@code commons-fileupload} and {@code servlet-api} (later will be removed
 * in a newer version of the {@code commons-fileupload}.
 * 
 * @param request
 *            the request to handle the file upload from
 * @param factory
 *            the {@code FileItemFactory} used to handle the request
 * 
 * @return the {@code List} of loaded files
 * 
 * @throws FileUploadException
 *             if the file upload fails
 */
public static List<FileItem> handleFileUpload(final HttpRequest request,
		final FileItemFactory factory) throws FileUploadException {
	final List<FileItem> items;
	if (request instanceof HttpEntityEnclosingRequest
			&& "POST".equals(request.getRequestLine().getMethod())) {

		// create the ServletFileUpload
		final FileUpload upload = new FileUpload(factory);

		final HttpEntityEnclosingRequest entityRequest = (HttpEntityEnclosingRequest) request;
		items = upload.parseRequest(new RequestWrapper(entityRequest));
	} else {
		items = new ArrayList<FileItem>();
	}

	return items;
}
 

import org.apache.commons.fileupload.FileUpload; //導入方法依賴的package包/類
/**
 * @see http://www.oschina.net/code/snippet_698737_13402
 * @param request
 * @return
 * @throws IOException
 */
public static Map<String, Object> uploadFiles(HttpServlet servlet, HttpServletRequest request) {
    Map<String, Object> map = JwUtils.newHashMap();
    Map<String, String> fileMap = JwUtils.newHashMap();
    map.put("file", fileMap);

    DiskFileItemFactory factory = new DiskFileItemFactory();// 創建工廠
    factory.setSizeThreshold(1024 * 1024 * 30);// 設置最大緩衝區為30M

    // 設置緩衝區目錄
    String savePath = servlet.getServletContext().getRealPath("/WEB-INF/temp");
    factory.setRepository(new File(savePath));

    FileUpload upload = new FileUpload(factory);// 獲得上傳解析器
    upload.setHeaderEncoding("UTF-8");// 解決上傳文件名亂碼
    
    try {
        String targetFolderPath = servlet.getServletContext().getRealPath("/WEB-INF/" + ConfigUtils.getProperty("web.files.upload.folder"));
        File targetFolder = new File(targetFolderPath);// 目標文件夾
        if(!targetFolder.exists()) {
            targetFolder.mkdir();
        }
        
        List<FileItem> fileItems = upload.parseRequest(new ServletRequestContext(request));// 解析請求體
        for (FileItem fileItem : fileItems) {
            if (fileItem.isFormField()) {// 判斷是普通表單項還是文件上傳項
                String name = fileItem.getFieldName();// 表單名
                String value = fileItem.getString("UTF-8");// 表單值
                map.put(name, value);
            } else {// 文件上傳項
                String fileName = fileItem.getName();// 獲取文件名
                if (StringUtils.isEmpty(fileName))// 判斷是否上傳了文件
                    continue;

                // 截取文件名
                int index = fileName.lastIndexOf("/");
                if (index > -1) {
                    fileName = fileName.substring(index);
                }

                // 檢查文件是否允許上傳
                index = fileName.lastIndexOf(".");
                if (index > -1 && index < fileName.length() - 1) {
                    String ext = fileName.substring(index + 1).toLowerCase();
                    if (!ConfigUtils.getString("web.files.upload.extension").contains(";" + ext + ";")) {
                        LOGGER.warn("The file {} is not allowed to upload.", fileName);
                        continue;
                    }
                }

                // 生成唯一文件名，保留原文件名
                String newFileName = UUID.randomUUID().toString();
                
                // 將文件內容寫到服務器端
                String targetPath = targetFolderPath + "/" + newFileName;
                File targetFile = new File(targetPath);// 目標文件
                targetFile.createNewFile();
                fileItem.write(targetFile);

                fileItem.delete();// 刪除臨時文件
                fileMap.put(fileName, newFileName);
            }
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
    return map;
}
 

import org.apache.commons.fileupload.FileUpload; //導入方法依賴的package包/類
public static ClassifiableContentIF getFileUploadContent(HttpServletRequest request) {
  // Handle file upload
  String contentType = request.getHeader("content-type");
  // out.write("CT: " + contentType + " " + tm + " " + id);
  if (contentType != null && contentType.startsWith("multipart/form-data")) {
    try {
      FileUpload upload = new FileUpload(new DefaultFileItemFactory());
      for (FileItem item : upload.parseRequest(request)) {
        if (item.getSize() > 0) {
          // ISSUE: could make use of content type if known
          byte[] content = item.get();
          ClassifiableContent cc = new ClassifiableContent();
          String name = item.getName();
          if (name != null)
            cc.setIdentifier("fileupload:name:" + name);
          else
            cc.setIdentifier("fileupload:field:" + item.getFieldName());              
          cc.setContent(content);
          return cc;
        }      
      }
    } catch (Exception e) {
      throw new OntopiaRuntimeException(e);
    }
  }
  return null;
}
 

import org.apache.commons.fileupload.FileUpload; //導入方法依賴的package包/類
@Test
public void writeMultipart() throws Exception {
	MultiValueMap<String, Object> parts = new LinkedMultiValueMap<String, Object>();
	parts.add("name 1", "value 1");
	parts.add("name 2", "value 2+1");
	parts.add("name 2", "value 2+2");
	parts.add("name 3", null);

	Resource logo = new ClassPathResource("/org/springframework/http/converter/logo.jpg");
	parts.add("logo", logo);

	// SPR-12108
	Resource utf8 = new ClassPathResource("/org/springframework/http/converter/logo.jpg") {
		@Override
		public String getFilename() {
			return "Hall\u00F6le.jpg";
		}
	};
	parts.add("utf8", utf8);

	Source xml = new StreamSource(new StringReader("<root><child/></root>"));
	HttpHeaders entityHeaders = new HttpHeaders();
	entityHeaders.setContentType(MediaType.TEXT_XML);
	HttpEntity<Source> entity = new HttpEntity<Source>(xml, entityHeaders);
	parts.add("xml", entity);

	MockHttpOutputMessage outputMessage = new MockHttpOutputMessage();
	this.converter.setMultipartCharset(UTF_8);
	this.converter.write(parts, new MediaType("multipart", "form-data", UTF_8), outputMessage);

	final MediaType contentType = outputMessage.getHeaders().getContentType();
	assertNotNull("No boundary found", contentType.getParameter("boundary"));

	// see if Commons FileUpload can read what we wrote
	FileItemFactory fileItemFactory = new DiskFileItemFactory();
	FileUpload fileUpload = new FileUpload(fileItemFactory);
	RequestContext requestContext = new MockHttpOutputMessageRequestContext(outputMessage);
	List<FileItem> items = fileUpload.parseRequest(requestContext);
	assertEquals(6, items.size());
	FileItem item = items.get(0);
	assertTrue(item.isFormField());
	assertEquals("name 1", item.getFieldName());
	assertEquals("value 1", item.getString());

	item = items.get(1);
	assertTrue(item.isFormField());
	assertEquals("name 2", item.getFieldName());
	assertEquals("value 2+1", item.getString());

	item = items.get(2);
	assertTrue(item.isFormField());
	assertEquals("name 2", item.getFieldName());
	assertEquals("value 2+2", item.getString());

	item = items.get(3);
	assertFalse(item.isFormField());
	assertEquals("logo", item.getFieldName());
	assertEquals("logo.jpg", item.getName());
	assertEquals("image/jpeg", item.getContentType());
	assertEquals(logo.getFile().length(), item.getSize());

	item = items.get(4);
	assertFalse(item.isFormField());
	assertEquals("utf8", item.getFieldName());
	assertEquals("Hall\u00F6le.jpg", item.getName());
	assertEquals("image/jpeg", item.getContentType());
	assertEquals(logo.getFile().length(), item.getSize());

	item = items.get(5);
	assertEquals("xml", item.getFieldName());
	assertEquals("text/xml", item.getContentType());
	verify(outputMessage.getBody(), never()).close();
}
 

import org.apache.commons.fileupload.FileUpload; //導入方法依賴的package包/類
@Test
public void writeMultipartOrder() throws Exception {
	MyBean myBean = new MyBean();
	myBean.setString("foo");

	MultiValueMap<String, Object> parts = new LinkedMultiValueMap<String, Object>();
	parts.add("part1", myBean);

	HttpHeaders entityHeaders = new HttpHeaders();
	entityHeaders.setContentType(MediaType.TEXT_XML);
	HttpEntity<MyBean> entity = new HttpEntity<MyBean>(myBean, entityHeaders);
	parts.add("part2", entity);

	MockHttpOutputMessage outputMessage = new MockHttpOutputMessage();
	this.converter.setMultipartCharset(UTF_8);
	this.converter.write(parts, new MediaType("multipart", "form-data", UTF_8), outputMessage);

	final MediaType contentType = outputMessage.getHeaders().getContentType();
	assertNotNull("No boundary found", contentType.getParameter("boundary"));

	// see if Commons FileUpload can read what we wrote
	FileItemFactory fileItemFactory = new DiskFileItemFactory();
	FileUpload fileUpload = new FileUpload(fileItemFactory);
	RequestContext requestContext = new MockHttpOutputMessageRequestContext(outputMessage);
	List<FileItem> items = fileUpload.parseRequest(requestContext);
	assertEquals(2, items.size());

	FileItem item = items.get(0);
	assertTrue(item.isFormField());
	assertEquals("part1", item.getFieldName());
	assertEquals("{\"string\":\"foo\"}", item.getString());

	item = items.get(1);
	assertTrue(item.isFormField());
	assertEquals("part2", item.getFieldName());

	// With developer builds we get: <MyBean><string>foo</string></MyBean>
	// But on CI server we get: <MyBean xmlns=""><string>foo</string></MyBean>
	// So... we make a compromise:
	assertThat(item.getString(),
			allOf(startsWith("<MyBean"), endsWith("><string>foo</string></MyBean>")));
}
 

import org.apache.commons.fileupload.FileUpload; //導入方法依賴的package包/類
@Override
   public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) {

	Logger logger = MiscUtils.getLogger();
	
	String simulationData = null;
	boolean simulationError = false;
	
	try {
	    FileUpload upload = new FileUpload(new DefaultFileItemFactory());
	    @SuppressWarnings("unchecked")
	    List<FileItem> items = upload.parseRequest(request);
	    for(FileItem item:items) {
	    	if(item.isFormField()) {
	    		String name = item.getFieldName();
	    		if(name.equals("simulateError")) {
	    			simulationError=true;
	    		}
	    	} else {
	    		if(item.getFieldName().equals("simulateFile")) {
		    		InputStream is = item.getInputStream();
		    		StringWriter writer = new StringWriter();
		    		IOUtils.copy(is, writer, "UTF-8");
		    		simulationData = writer.toString();			    		
	    		}
	    	}
	    }
	    
	    if(simulationData != null && simulationData.length()>0) {
	    	if(simulationError) {
	    		Driver.readResponseFromXML(request, simulationData);
	    		simulationData = (String)request.getAttribute("olisResponseContent");
	    		request.getSession().setAttribute("errors",request.getAttribute("errors"));
	    	}
	    	request.getSession().setAttribute("olisResponseContent", simulationData);
	    	request.setAttribute("result", "File successfully uploaded");
	    }
	}catch(Exception e) {
		MiscUtils.getLogger().error("Error",e);
	}

	return mapping.findForward("success");
}
 

import org.apache.commons.fileupload.FileUpload; //導入方法依賴的package包/類
@Test
public void writeMultipart() throws Exception {
	MultiValueMap<String, Object> parts = new LinkedMultiValueMap<String, Object>();
	parts.add("name 1", "value 1");
	parts.add("name 2", "value 2+1");
	parts.add("name 2", "value 2+2");
	parts.add("name 3", null);

	Resource logo = new ClassPathResource("/org/springframework/http/converter/logo.jpg");
	parts.add("logo", logo);
	Source xml = new StreamSource(new StringReader("<root><child/></root>"));
	HttpHeaders entityHeaders = new HttpHeaders();
	entityHeaders.setContentType(MediaType.TEXT_XML);
	HttpEntity<Source> entity = new HttpEntity<Source>(xml, entityHeaders);
	parts.add("xml", entity);

	MockHttpOutputMessage outputMessage = new MockHttpOutputMessage();
	converter.write(parts, MediaType.MULTIPART_FORM_DATA, outputMessage);

	final MediaType contentType = outputMessage.getHeaders().getContentType();
	assertNotNull("No boundary found", contentType.getParameter("boundary"));

	// see if Commons FileUpload can read what we wrote
	FileItemFactory fileItemFactory = new DiskFileItemFactory();
	FileUpload fileUpload = new FileUpload(fileItemFactory);
	List items = fileUpload.parseRequest(new MockHttpOutputMessageRequestContext(outputMessage));
	assertEquals(5, items.size());
	FileItem item = (FileItem) items.get(0);
	assertTrue(item.isFormField());
	assertEquals("name 1", item.getFieldName());
	assertEquals("value 1", item.getString());

	item = (FileItem) items.get(1);
	assertTrue(item.isFormField());
	assertEquals("name 2", item.getFieldName());
	assertEquals("value 2+1", item.getString());

	item = (FileItem) items.get(2);
	assertTrue(item.isFormField());
	assertEquals("name 2", item.getFieldName());
	assertEquals("value 2+2", item.getString());

	item = (FileItem) items.get(3);
	assertFalse(item.isFormField());
	assertEquals("logo", item.getFieldName());
	assertEquals("logo.jpg", item.getName());
	assertEquals("image/jpeg", item.getContentType());
	assertEquals(logo.getFile().length(), item.getSize());

	item = (FileItem) items.get(4);
	assertEquals("xml", item.getFieldName());
	assertEquals("text/xml", item.getContentType());
	verify(outputMessage.getBody(), never()).close();
}