Java IOUtils.toByteArray方法代碼示例

import org.apache.poi.util.IOUtils; //導入方法依賴的package包/類
/**
 * ## todo : add proper mapping.
 *
 * @param request {@link HttpServletRequest}
 */
@PostMapping("add/product")
public Map<String, Boolean> addAndPersistProduct(final HttpServletRequest request) {
	final MultipartFile product = ((StandardMultipartHttpServletRequest) request).getMultiFileMap().getFirst("products");
	final MultipartFile image = ((StandardMultipartHttpServletRequest) request).getMultiFileMap().getFirst("images");

	// manually replace quote char
	final String commaSeparatedKeywords = request.getParameter("keywords").replaceAll("\"", "");
	final String userName = request.getParameter("username");

	final UserEntity userEntity = this.service.getUserByUserName(userName);
	final List<KeywordEntity> keywordEntityList = this.service.getKeywordEntityListByAlias(commaSeparatedKeywords);
	final ProductEntity productEntity = new ProductEntity();

	// manually replace quote char
	productEntity.setName(request.getParameter("name").replaceAll("\"", ""));
	productEntity.setDescription(request.getParameter("description").replaceAll("\"", ""));

	try (final InputStream imgInput = image.getInputStream();
			final InputStream cntInput = product.getInputStream()) {
		final byte[] imgArray = IOUtils.toByteArray(imgInput); // Apache commons IO.
		productEntity.setPreviewImage(imgArray);

		final byte[] cntArray = IOUtils.toByteArray(cntInput); // Apache commons IO.
		productEntity.setProductItem(cntArray);
	} catch (IOException e) {
		LOG.error(e.getMessage(), e);
	}

	productEntity.setUserEntity(userEntity);
	productEntity.setKeywordEntityList(keywordEntityList);

	this.service.persistProductEntity(productEntity);
	final Map<String, Boolean> returnMap = new HashMap<>();
	returnMap.put("success", productEntity.getProductUuid() != null);
	return returnMap;
}
 

import org.apache.poi.util.IOUtils; //導入方法依賴的package包/類
public void generateLogo(Sheet sheet, int length, Workbook wb, String basePath, Image image) {
    if (image == null) {
        return;
    }

    try {
        sheet.addMergedRegion(new CellRangeAddress(image.getRowFrom(), (short) image.getRowTo() - 1,
                image.getColFrom(), (short) image.getColTo() - 1));
        String imageFilePath = "d:/app/img";
        InputStream is = new FileInputStream(basePath + imageFilePath);
        byte[] bytes = IOUtils.toByteArray(is);
        int pictureIdx = wb.addPicture(bytes, Workbook.PICTURE_TYPE_JPEG);
        is.close();
        CreationHelper helper = wb.getCreationHelper();
        Drawing drawing = sheet.createDrawingPatriarch();
        ClientAnchor anchor = new XSSFClientAnchor(0, 0, 0, 0,
                image.getColFrom(), image.getRowFrom(), image.getColTo(), image.getRowTo() + 1);
        Picture pict = drawing.createPicture(anchor, pictureIdx);

    } catch (IOException e) {
        e.printStackTrace();
    }
}
 

import org.apache.poi.util.IOUtils; //導入方法依賴的package包/類
public void fetchBrandingPackage() throws IOException {
    
    InputStream in = null;
    try {
        FacesContext fc = getFacesContext();
        in = fc.getExternalContext().getResourceAsStream(
                "/WEB-INF/branding-package.zip");
        if (in == null) {
            addMessage(null, FacesMessage.SEVERITY_ERROR,
                    ERROR_FETCH_BRANDING_PACKAGE);
            logger.logError(LogMessageIdentifier.ERROR_FETCH_BRANDING_PACKAGE_RETURN_NULL);
            
            return;
        }
        byte[] bytes = IOUtils.toByteArray(in);
        brandingPackage = bytes;
        if (brandingPackage == null) {
            addMessage(null, FacesMessage.SEVERITY_ERROR,
                    ERROR_FETCH_BRANDING_PACKAGE);
            logger.logError(LogMessageIdentifier.ERROR_FETCH_BRANDING_PACKAGE_RETURN_NULL);
            
            return;
        }
    } finally {
        if (in != null) {
            in.close();
        }
    }
}
 

import org.apache.poi.util.IOUtils; //導入方法依賴的package包/類
/**
 * Following test loads a 400KB xls file using both an XlsInputStream and into a byte array,
 * then assesses the XlsInputStream is returning the correct data.
 */
@Test
public void testXlsInputStream() throws Exception {
  final String filePath = TestTools.getWorkingPath() + "/src/test/resources/excel/poi44891.xls";

  final byte[] bytes = IOUtils.toByteArray(new FileInputStream(filePath));

  final XlsInputStream xlsStream = new XlsInputStream(bufferManager, new ByteArrayInputStream(bytes));

  final ByteArrayInputStream bis = new ByteArrayInputStream(bytes);
  final int bufferSize = 500;
  final byte[] buf1 = new byte[bufferSize];
  final byte[] buf2 = new byte[bufferSize];

  int offset = 0;
  while (offset < bytes.length) {
    int r1 = bis.read(buf1);
    int r2 = xlsStream.read(buf2);

    Assert.assertEquals(String.format("Error after reading %d bytes", offset), r1, r2);

    final String errorMsg = String.format("Error after reading %d bytes%n" +
            "expected: %s%n" +
            "was: %s%n", offset, Arrays.toString(buf1), Arrays.toString(buf2));
    Assert.assertTrue(errorMsg, Arrays.equals(buf1, buf2));

    offset += bufferSize;
  }

}
 

import org.apache.poi.util.IOUtils; //導入方法依賴的package包/類
/**
 * Read stream.
 *
 * @param inStream
 *            the in stream
 * @return the byte[]
 */
public static byte[] readStream(final InputStream inStream) {
	try {
		return IOUtils.toByteArray(inStream);
	} catch (IOException e) {
		throw new JKException(e);
	}
	//
	// try {
	// DataInputStream in = null;
	// try {
	// in = new DataInputStream(inStream);
	// int ch;
	//
	// List<Byte> bytes=new ArrayList<>();
	// while((ch=in.read())!=-1){
	// bytes.add(ch);
	// }
	// return arr;
	// } finally {
	// if (in != null) {
	// in.close();
	// }
	// }
	// } catch (final IOException e) {
	// throw new RuntimeException(e);
	// }
}
 

import org.apache.poi.util.IOUtils; //導入方法依賴的package包/類
/**
 * Stream 을 MIME (HTML기반) 이미지로 교체함.
 *
 * @작성자 : KYJ
 * @작성일 : 2016. 5. 31.
 * @param is
 * @return
 * @throws IOException
 */
public static String imageTo(InputStream is) throws IOException {
	byte[] byteArray = IOUtils.toByteArray(is);

	StringBuilder b = new StringBuilder();
	// BASE64로 컨버팅.
	byteArray = Base64.getMimeEncoder().encode(byteArray);

	b.append(new String("<img src=\"data:image/jpg;base64,"));
	b.append(new String(byteArray));
	b.append(new String("\" alt=\"\" width=\"683\" height=\"420\" />"));
	return b.toString();
}
 

import org.apache.poi.util.IOUtils; //導入方法依賴的package包/類
/**
 * store "con" value to database when server is received notification 
 * 
 * @param request
 * @param model
 * @return
 * @throws Exception
 */
@ResponseBody
@RequestMapping(value = "/{system}/onem2m/noti")
public String getConFromNotification(HttpServletRequest request, ModelMap model) {
	
	String result = null;
	
	try(InputStream is = request.getInputStream()){	
		byte[] buffer = IOUtils.toByteArray(is);
		String xml = new String(buffer);
		HashMap<String, String> notification = new HashMap<String, String>();
		notification.put("con", Util.getValueFromXml(xml, "con"));
		notification.put("cnf", Util.getValueFromXml(xml, "cnf"));
		notification.put("sur", Util.getValueFromXml(xml, "sur"));
		Util.getInstance().printMap(notification);
		
		boolean isSuccess = hdmDAO.insertNotificationResource(notification);
		if( isSuccess ){
			
		} else {
			
		}
		
	} catch(Exception e) {
		e.printStackTrace();
	} finally {
		
	}
	
	return result;
}
 

import org.apache.poi.util.IOUtils; //導入方法依賴的package包/類
private static byte[] fileData(String filePath) throws IOException {
	File file = new File(filePath);//存放照片的文件
	InputStream fis = null;
	byte[] imageByteArray = null;
	fis = new FileInputStream(file);
	imageByteArray= IOUtils.toByteArray(fis);
	return imageByteArray;
}
 

import org.apache.poi.util.IOUtils; //導入方法依賴的package包/類
/**
 * 流轉換成byte數組
 * 
 * @param is
 * @return
 */
public static byte[] toByteArray(InputStream is) {
	try {
		return IOUtils.toByteArray(is);
	} catch (IOException e) {
		logger.error("toByteArray error", e);
	}
	return null;
}
 

import org.apache.poi.util.IOUtils; //導入方法依賴的package包/類
public static byte[] getImageData(String imgPath){
	byte[] arrayByte = null;
	try {
		Bundle buddle = Platform.getBundle(Activator.PLUGIN_ID);
		URL defaultUrl = buddle.getEntry(imgPath);
		String imagePath = imgPath;
		imagePath = FileLocator.toFileURL(defaultUrl).getPath();
		arrayByte = IOUtils.toByteArray(new FileInputStream(new File(imagePath)));
	} catch (Exception e) {
	}
	
	return arrayByte;
}
 

import org.apache.poi.util.IOUtils; //導入方法依賴的package包/類
public static void main(String[] args) throws Exception
{
	String dataPath = "src/featurescomparison/workingwithworkbook/addimages/data/";
	
	//create a new workbook
    Workbook wb = new XSSFWorkbook(); //or new HSSFWorkbook();

    //add picture data to this workbook.
    InputStream is = new FileInputStream(dataPath + "aspose.jpg");
    byte[] bytes = IOUtils.toByteArray(is);
    int pictureIdx = wb.addPicture(bytes, Workbook.PICTURE_TYPE_JPEG);
    is.close();

    CreationHelper helper = wb.getCreationHelper();

    //create sheet
    Sheet sheet = wb.createSheet();

    // Create the drawing patriarch.  This is the top level container for all shapes. 
    Drawing drawing = sheet.createDrawingPatriarch();

    //add a picture shape
    ClientAnchor anchor = helper.createClientAnchor();
    //set top-left corner of the picture,
    //subsequent call of Picture#resize() will operate relative to it
    anchor.setCol1(3);
    anchor.setRow1(2);
    Picture pict = drawing.createPicture(anchor, pictureIdx);

    //auto-size picture relative to its top-left corner
    pict.resize();

    //save workbook
    String file = dataPath + "ApacheImage.xls";
    if(wb instanceof XSSFWorkbook) file += "x";
    FileOutputStream fileOut = new FileOutputStream(file);
    wb.write(fileOut);
    fileOut.close();
    System.out.println("Done...");
}
 

import org.apache.poi.util.IOUtils; //導入方法依賴的package包/類
public void readValue(InputStream value) throws IOException {
   // Stored in the file as us-ascii
   try {
      byte[] data = IOUtils.toByteArray(value); 
      rawId = new String(data, "ASCII");
   } catch(UnsupportedEncodingException e) {
      throw new RuntimeException("Core encoding not found, JVM broken?", e);
   }
   
   // Now process the date
   String[] parts = rawId.split(";");
   for(String part : parts) {
      if(part.startsWith("l=")) {
         // Format of this bit appears to be l=<id>-<time>-<number>
         if(part.indexOf('-') != -1 && 
               part.indexOf('-') != part.lastIndexOf('-')) {
            String dateS = part.substring(part.indexOf('-')+1, part.lastIndexOf('-'));
            
            // Should be yymmddhhmmssZ
            Matcher m = datePatern.matcher(dateS);
            if(m.matches()) {
               date = Calendar.getInstance();
               date.set(Calendar.YEAR,  Integer.parseInt(m.group(1)) + 2000);
               date.set(Calendar.MONTH, Integer.parseInt(m.group(2)) - 1); // Java is 0 based
               date.set(Calendar.DATE,  Integer.parseInt(m.group(3)));
               date.set(Calendar.HOUR_OF_DAY, Integer.parseInt(m.group(4)));
               date.set(Calendar.MINUTE,      Integer.parseInt(m.group(5)));
               date.set(Calendar.SECOND,      Integer.parseInt(m.group(6)));
               date.set(Calendar.MILLISECOND, 0);
            } else {
         	   logger.log(POILogger.WARN, "Warning - unable to make sense of date " + dateS);
            }
         }
      }
   }
}
 

import org.apache.poi.util.IOUtils; //導入方法依賴的package包/類
public void readValue(InputStream value) throws IOException {
   this.value = IOUtils.toByteArray(value);
}
 

import org.apache.poi.util.IOUtils; //導入方法依賴的package包/類
public void readValue(InputStream value) throws IOException {
   rawValue = IOUtils.toByteArray(value);
   parseString();
}
 

import org.apache.poi.util.IOUtils; //導入方法依賴的package包/類
/**
   * Metodo di utility, apre un file e lo converte in un array di Byte.<br>
   * L'array di byte � utilizzato da POI per inserire le immagini nel workBook
   * @param fileName path/nome del file da convertire
   * @return 'versione binaria' del file
   * @throws IOException Lancia IOException se il file non esiste o ci sono altri problemi in lettura/scrittura
   */
  protected static byte[] convertFileToBytes(InputStream image_asStream) throws IOException
  {
byte [] array = IOUtils.toByteArray(image_asStream);
image_asStream.close();
return array;
  }