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Java ErrorCorrectionLevel類代碼示例

本文整理匯總了Java中com.google.zxing.qrcode.decoder.ErrorCorrectionLevel類的典型用法代碼示例。如果您正苦於以下問題：Java ErrorCorrectionLevel類的具體用法？Java ErrorCorrectionLevel怎麽用？Java ErrorCorrectionLevel使用的例子？那麽, 這裏精選的類代碼示例或許可以為您提供幫助。


ErrorCorrectionLevel類屬於com.google.zxing.qrcode.decoder包，在下文中一共展示了ErrorCorrectionLevel類的15個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Java代碼示例。

示例1: getQR

import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel; //導入依賴的package包/類
/**
 * Method to get the JavaFX Image QR code for easy input of address
 * @param width width of the image
 * @param height height of the image
 * @return Java FX Image
 * @throws IOException Either when there is an encoding error or java's reserved memory is overwritten.
 * @throws WriterException When ZXING encounters an error.
 */
public Image getQR(int width, int height) throws IOException, WriterException{
    String charset = "UTF-8";
    Map hintMap = new HashMap();
    hintMap.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.M);

    ByteArrayOutputStream stream = new ByteArrayOutputStream();
    BitMatrix matrix = new MultiFormatWriter().encode(new String(cryptoAddress.getBytes(charset), charset), BarcodeFormat.QR_CODE, width, height, hintMap);
    MatrixToImageWriter.writeToStream(matrix, "png", stream);
    stream.flush();

    byte[] data = stream.toByteArray();
    stream.close();

    return new Image(new ByteArrayInputStream(data));
}
開發者ID:Roxas240，項目名稱:CryptoPayAPI，代碼行數:24，代碼來源:CryptoClient.java

示例2: getQRCodeImge

import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel; //導入依賴的package包/類
/**
 * 將內容contents生成長為width，寬為width的圖片,返回劉文靜
 */
public static ServletOutputStream getQRCodeImge(String contents, int width, int height) throws IOException {
    ServletOutputStream stream = null;
    try {
        Map<EncodeHintType, Object> hints = Maps.newHashMap();
        hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.M);
        hints.put(EncodeHintType.CHARACTER_SET, "UTF8");
        BitMatrix bitMatrix = new MultiFormatWriter().encode(contents, BarcodeFormat.QR_CODE, width, height, hints);
        MatrixToImageWriter.writeToStream(bitMatrix, "png", stream);
        return stream;
    } catch (Exception e) {
        log.error("create QR code error!", e);
        return null;
    } finally {
        if (stream != null) {
            stream.close();
        }
    }
}
開發者ID:fanqinghui，項目名稱:wish-pay，代碼行數:22，代碼來源:ZxingUtils.java

示例3: getQR

import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel; //導入依賴的package包/類
public static Bitmap getQR(final byte[] content, final int size) {
    final QRCodeWriter writer = new QRCodeWriter();
    try {
        final Map<EncodeHintType, Object> encodingHints = new HashMap<>();
        encodingHints.put(EncodeHintType.CHARACTER_SET, "UTF-8");
        encodingHints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H);

        final BitMatrix encoding = writer.encode(Utils.makeQR(content), BarcodeFormat.QR_CODE, size, size, encodingHints);
        final Bitmap bitmap = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);

        for (int i = 0; i < size; i++) {
            for (int j = 0; j < size; j++) {
                bitmap.setPixel(i, j, encoding.get(i, j) ? COLOR_DARK : COLOR_LIGHT);
            }
        }

        return bitmap;
    } catch (WriterException e) {
        Log.e("QRUtils", "Failed to get QR code", e);
    }
    return null;
}
開發者ID:mDL-ILP，項目名稱:mDL-ILP，代碼行數:23，代碼來源:QRUtils.java

示例4: encode

import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel; //導入依賴的package包/類
/**
 * Zxing圖形碼生成工具
 *
 * @param contents
 *            內容
 * @param barcodeFormat
 *            BarcodeFormat對象
 * @param format
 *            圖片格式，可選[png,jpg,bmp]
 * @param width
 *            寬
 * @param height
 *            高
 * @param margin
 *            邊框間距px
 * @param saveImgFilePath
 *            存儲圖片的完整位置，包含文件名
 * @return {boolean}
 */
public static boolean encode(String contents, BarcodeFormat barcodeFormat, Integer margin,
		ErrorCorrectionLevel errorLevel, String format, int width, int height, String saveImgFilePath) {
	Boolean bool = false;
	BufferedImage bufImg;
	Map<EncodeHintType, Object> hints = new HashMap<EncodeHintType, Object>();
	// 指定糾錯等級
	hints.put(EncodeHintType.ERROR_CORRECTION, errorLevel);
	hints.put(EncodeHintType.MARGIN, margin);
	hints.put(EncodeHintType.CHARACTER_SET, "UTF-8");
	try {
		// contents = new String(contents.getBytes("UTF-8"), "ISO-8859-1");
		BitMatrix bitMatrix = new MultiFormatWriter().encode(contents, barcodeFormat, width, height, hints);
		MatrixToImageConfig config = new MatrixToImageConfig(0xFF000001, 0xFFFFFFFF);
		bufImg = MatrixToImageWriter.toBufferedImage(bitMatrix, config);
		bool = writeToFile(bufImg, format, saveImgFilePath);
	} catch (Exception e) {
		e.printStackTrace();
	}
	return bool;
}
開發者ID:Javen205，項目名稱:IJPay，代碼行數:40，代碼來源:ZxingKit.java

示例5: createImage

import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel; //導入依賴的package包/類
/**
 * 創建二維碼
 *
 * @param size         二維碼尺寸
 * @param content      二維碼內容
 * @param logoPath     Logo地址
 * @param needCompress 是否壓縮
 * @return
 * @throws Exception
 */
private static BufferedImage createImage(int size, String content, String logoPath, boolean needCompress) throws Exception {
	Hashtable<EncodeHintType, Object> hints = new Hashtable<EncodeHintType, Object>();
	hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H);
	hints.put(EncodeHintType.CHARACTER_SET, CHARSET);
	hints.put(EncodeHintType.MARGIN, 1);
	BitMatrix bitMatrix = new MultiFormatWriter().encode(content, BarcodeFormat.QR_CODE, size, size, hints);
	int width = bitMatrix.getWidth();
	int height = bitMatrix.getHeight();
	BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
	for (int x = 0; x < width; x++) {
		for (int y = 0; y < height; y++) {
			image.setRGB(x, y, bitMatrix.get(x, y) ? 0xFF000000 : 0xFFFFFFFF);
		}
	}
	if (logoPath == null || "".equals(logoPath)) {
		return image;
	}
	// 插入圖片
	QRCodeUtils.insertImage(size, image, logoPath, needCompress);
	return image;
}
開發者ID:funtl，項目名稱:framework，代碼行數:32，代碼來源:QRCodeUtils.java

示例6: createQRCode

import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel; //導入依賴的package包/類
/**
 * 根據內容生成二維碼數據
 * @param content 二維碼文字內容[為了信息安全性，一般都要先進行數據加密]
 * @param width 二維碼照片寬度
 * @param height 二維碼照片高度
 * @return
 */
public static BitMatrix createQRCode(String content, int width, int height){
	Hashtable<EncodeHintType, Object> hints = new Hashtable<EncodeHintType, Object>();   
	//設置字符編碼
       hints.put(EncodeHintType.CHARACTER_SET, "utf-8");  
       // 指定糾錯等級
	hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H);
	hints.put(EncodeHintType.MARGIN, 1);
       BitMatrix matrix = null;  
       try {  
           matrix = new MultiFormatWriter().encode(content, BarcodeFormat.QR_CODE, width, height, hints); 
       } catch (WriterException e) {  
           e.printStackTrace();  
       }
       
       return matrix;
}
開發者ID:onsoul，項目名稱:os，代碼行數:24，代碼來源:MatrixToImageWriterEx.java

示例7: createQrcodeMatrix

import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel; //導入依賴的package包/類
/**
 * 根據內容生成二維碼數據
 *
 * @param content 二維碼文字內容[為了信息安全性，一般都要先進行數據加密]
 * @param length  二維碼圖片寬度和高度
 */
private static BitMatrix createQrcodeMatrix(String content, int length) {
  Map<EncodeHintType, Object> hints = Maps.newEnumMap(EncodeHintType.class);
  // 設置字符編碼
  hints.put(EncodeHintType.CHARACTER_SET, Charsets.UTF_8.name());
  // 指定糾錯等級
  hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H);

  try {
    return new MultiFormatWriter().encode(content, BarcodeFormat.QR_CODE, length, length, hints);
  } catch (Exception e) {
    logger.warn("內容為：【" + content + "】的二維碼生成失敗！", e);
    return null;
  }

}
開發者ID:binarywang，項目名稱:qrcode-utils，代碼行數:22，代碼來源:QrcodeUtils.java

示例8: chooseMaskPattern

import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel; //導入依賴的package包/類
private static int chooseMaskPattern(BitArray bits,
                                     ErrorCorrectionLevel ecLevel,
                                     Version version,
                                     ByteMatrix matrix) throws WriterException {

  int minPenalty = Integer.MAX_VALUE;  // Lower penalty is better.
  int bestMaskPattern = -1;
  // We try all mask patterns to choose the best one.
  for (int maskPattern = 0; maskPattern < QRCode.NUM_MASK_PATTERNS; maskPattern++) {
    MatrixUtil.buildMatrix(bits, ecLevel, version, maskPattern, matrix);
    int penalty = calculateMaskPenalty(matrix);
    if (penalty < minPenalty) {
      minPenalty = penalty;
      bestMaskPattern = maskPattern;
    }
  }
  return bestMaskPattern;
}
開發者ID:amap-demo，項目名稱:weex-3d-map，代碼行數:19，代碼來源:Encoder.java

示例9: chooseVersion

import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel; //導入依賴的package包/類
private static Version chooseVersion(int numInputBits, ErrorCorrectionLevel ecLevel) throws WriterException {
  // In the following comments, we use numbers of Version 7-H.
  for (int versionNum = 1; versionNum <= 40; versionNum++) {
    Version version = Version.getVersionForNumber(versionNum);
    // numBytes = 196
    int numBytes = version.getTotalCodewords();
    // getNumECBytes = 130
    Version.ECBlocks ecBlocks = version.getECBlocksForLevel(ecLevel);
    int numEcBytes = ecBlocks.getTotalECCodewords();
    // getNumDataBytes = 196 - 130 = 66
    int numDataBytes = numBytes - numEcBytes;
    int totalInputBytes = (numInputBits + 7) / 8;
    if (numDataBytes >= totalInputBytes) {
      return version;
    }
  }
  throw new WriterException("Data too big");
}
開發者ID:amap-demo，項目名稱:weex-3d-map，代碼行數:19，代碼來源:Encoder.java

示例10: makeTypeInfoBits

import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel; //導入依賴的package包/類
static void makeTypeInfoBits(ErrorCorrectionLevel ecLevel, int maskPattern, BitArray bits)
    throws WriterException {
  if (!QRCode.isValidMaskPattern(maskPattern)) {
    throw new WriterException("Invalid mask pattern");
  }
  int typeInfo = (ecLevel.getBits() << 3) | maskPattern;
  bits.appendBits(typeInfo, 5);

  int bchCode = calculateBCHCode(typeInfo, TYPE_INFO_POLY);
  bits.appendBits(bchCode, 10);

  BitArray maskBits = new BitArray();
  maskBits.appendBits(TYPE_INFO_MASK_PATTERN, 15);
  bits.xor(maskBits);

  if (bits.getSize() != 15) {  // Just in case.
    throw new WriterException("should not happen but we got: " + bits.getSize());
  }
}
開發者ID:amap-demo，項目名稱:weex-3d-map，代碼行數:20，代碼來源:MatrixUtil.java

示例11: encode

import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel; //導入依賴的package包/類
public BitMatrix encode(String contents, BarcodeFormat format, int width, int height, Map<EncodeHintType, ?> hints) throws WriterException {
    if (contents.length() == 0) {
        throw new IllegalArgumentException("Found empty contents");
    } else if (format != BarcodeFormat.QR_CODE) {
        throw new IllegalArgumentException("Can only encode QR_CODE, but got " + format);
    } else if (width < 0 || height < 0) {
        throw new IllegalArgumentException("Requested dimensions are too small: " + width + 'x' + height);
    } else {
        ErrorCorrectionLevel errorCorrectionLevel = ErrorCorrectionLevel.L;
        int quietZone = 4;
        if (hints != null) {
            ErrorCorrectionLevel requestedECLevel = (ErrorCorrectionLevel) hints.get(EncodeHintType.ERROR_CORRECTION);
            if (requestedECLevel != null) {
                errorCorrectionLevel = requestedECLevel;
            }
            Integer quietZoneInt = (Integer) hints.get(EncodeHintType.MARGIN);
            if (quietZoneInt != null) {
                quietZone = quietZoneInt.intValue();
            }
        }
        return renderResult(Encoder.encode(contents, errorCorrectionLevel, hints), width, height, quietZone);
    }
}
開發者ID:JackChan1999，項目名稱:letv，代碼行數:24，代碼來源:QRCodeWriter.java

示例12: generate

import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel; //導入依賴的package包/類
public Bitmap generate(String text, int width, int height) {
    Map<EncodeHintType, Object> hints = new HashMap<>();
    hints.put(EncodeHintType.CHARACTER_SET, "utf-8");
    hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.M);
    try {
        BitMatrix bitMatrix = new QRCodeWriter().encode(text, BarcodeFormat.QR_CODE, width, height, hints);
        int[] pixels = new int[width * height];
        for (int i = 0; i < height; i++) {
            for (int j = 0; j < width; j++) {
                if (bitMatrix.get(j, i)) {
                    pixels[i * width + j] = 0x00000000;
                } else {
                    pixels[i * height + j] = 0xffffffff;
                }
            }
        }
        Bitmap bitmap = Bitmap.createBitmap(pixels, 0, width, width, height, Bitmap.Config.RGB_565);
        bitmap = addLogo(bitmap);
        return bitmap;
    } catch (WriterException e) {
        e.printStackTrace();
    }
    return null;
}
開發者ID:m2049r，項目名稱:xmrwallet，代碼行數:25，代碼來源:ReceiveFragment.java

示例13: createImage

import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel; //導入依賴的package包/類
private static BufferedImage createImage(String content, String imgPath,
        boolean needCompress) throws Exception {
    Hashtable hints = new Hashtable();
    hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H);
    hints.put(EncodeHintType.CHARACTER_SET, CHARSET);
    hints.put(EncodeHintType.MARGIN, 1);
    BitMatrix bitMatrix = new MultiFormatWriter().encode(content,
            BarcodeFormat.QR_CODE, QRCODE_SIZE, QRCODE_SIZE, hints);
    int width = bitMatrix.getWidth();
    int height = bitMatrix.getHeight();
    BufferedImage image = new BufferedImage(width, height,
            BufferedImage.TYPE_INT_RGB);
    for (int x = 0; x < width; x++) {
        for (int y = 0; y < height; y++) {
            image.setRGB(x, y, bitMatrix.get(x, y) ? 0xFF000000
                    : 0xFFFFFFFF);
        }
    }
    if (imgPath == null || "".equals(imgPath)) {
        return image;
    }
 // 插入圖片
    CodeUtil.insertImage(image, imgPath, needCompress);
    return image;
}
開發者ID:Fetax，項目名稱:Fetax-AI，代碼行數:26，代碼來源:CodeUtil.java

示例14: createImage

import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel; //導入依賴的package包/類
private static BufferedImage createImage(String content, String imgPath,
        boolean needCompress) throws Exception {
    Hashtable hints = new Hashtable();
    hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H);
    hints.put(EncodeHintType.CHARACTER_SET, CHARSET);
    hints.put(EncodeHintType.MARGIN, 1);
    BitMatrix bitMatrix = new MultiFormatWriter().encode(content,
            BarcodeFormat.QR_CODE, QRCODE_SIZE, QRCODE_SIZE, hints);
    int width = bitMatrix.getWidth();
    int height = bitMatrix.getHeight();
    BufferedImage image = new BufferedImage(width, height,
            BufferedImage.TYPE_INT_RGB);
    for (int x = 0; x < width; x++) {
        for (int y = 0; y < height; y++) {
            image.setRGB(x, y, bitMatrix.get(x, y) ? 0xFF000000
                    : 0xFFFFFFFF);
        }
    }
    if (imgPath == null || "".equals(imgPath)) {
        return image;
    }
    // 插入圖片
    QRCodeUtil.insertImage(image, imgPath, needCompress);
    return image;
}
開發者ID:HuiJa，項目名稱:bicycleSharingServer，代碼行數:26，代碼來源:QRCodeUtil.java

示例15: createImage

import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel; //導入依賴的package包/類
/**
 *
 * @param path 完整的路徑包括文件名
 * @param width 圖片寬
 * @param height 圖片高
 * @param contents 內容
 */
public static void createImage(String path,int width,int height,String contents){
	String format = "png";
	//定義二維碼的參數
	HashMap hints = new HashMap();
	hints.put(EncodeHintType.AZTEC_LAYERS, "utf-8");//設置編碼
	hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.M);//設置容錯等級： L M Q H
	hints.put(EncodeHintType.MARGIN,1);//設置邊距

	//生成文件
	try {
		BitMatrix bitMatrix = new MultiFormatWriter().encode(contents, BarcodeFormat.QR_CODE, width, height,hints);
		Path file = new File(path).toPath();
		MatrixToImageWriter.writeToPath(bitMatrix, format, file);
	} catch (Exception e) {
		e.printStackTrace();
	}
}
開發者ID:Kuangcp，項目名稱:JavaToolKit，代碼行數:25，代碼來源:CreateQRCode.java


注：本文中的com.google.zxing.qrcode.decoder.ErrorCorrectionLevel類示例由純淨天空整理自Github/MSDocs等開源代碼及文檔管理平台，相關代碼片段篩選自各路編程大神貢獻的開源項目，源碼版權歸原作者所有，傳播和使用請參考對應項目的License；未經允許，請勿轉載。