ZXing 二维码解析生成工具类(未测试)

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[Java]代码

import com.google.zxing.*;import com.google.zxing.Reader;import com.google.zxing.client.j2se.BufferedImageLuminanceSource;import com.google.zxing.client.j2se.MatrixToImageWriter;import com.google.zxing.common.BitMatrix;import com.google.zxing.common.HybridBinarizer;import com.google.zxing.multi.GenericMultipleBarcodeReader;import com.google.zxing.multi.MultipleBarcodeReader;import javax.imageio.ImageIO;import java.io.*;import java.nio.file.FileSystems;import java.nio.file.Path;import java.util.*;/** * 二维码生成工具类 * * @author KisChang * @version 1.0 * @date 2015年12月03日 * @since 1.0 */public class ZXingUtils {    public static enum ImageType {        JPEG("jpeg"),PNG("png"),GIF("gif");        private String value;        ImageType(String value) {            this.value = value;        }        public String getValue() {            return value;        }    }    /**编码*/    public static class Encode {        private static Map<EncodeHintType, Object> HINTS;        static {            HINTS = new EnumMap<EncodeHintType,Object>(EncodeHintType.class);            HINTS.put(EncodeHintType.CHARACTER_SET, "UTF-8");        }        /**         * 生成二维码         * @param widthAndHeight    高宽         * @param content           二维码内容         * @param os                输出流         */        public static void buildQRCode(int widthAndHeight, String content, OutputStream os, ImageType imageType) throws WriterException, IOException {            BitMatrix bitMatrix = new MultiFormatWriter().encode(content, BarcodeFormat.QR_CODE, widthAndHeight, widthAndHeight, HINTS);// 生成矩阵            MatrixToImageWriter.writeToStream(bitMatrix, imageType.getValue(), os);        }        public static void buildQRCode(String content, OutputStream os, ImageType imageType) throws WriterException, IOException {            buildQRCode(200, content, os, imageType);        }        /**         * 生成二维码         * @param widthAndHeight    高宽         * @param content           二维码内容         * @param filePath          输出目录         * @param fileName          输出文件名         * @param imageType         输出文件类型         */        public static void buildQRCode(int widthAndHeight, String content, String filePath, String fileName, ImageType imageType) throws WriterException, IOException {            BitMatrix bitMatrix = new MultiFormatWriter().encode(content,                    BarcodeFormat.QR_CODE, widthAndHeight, widthAndHeight, HINTS);            Path path = FileSystems.getDefault().getPath(filePath, fileName);            MatrixToImageWriter.writeToPath(bitMatrix, imageType.getValue(), path);// 输出图像        }        public static void buildQRCode(String content, String filePath, String fileName, ImageType imageType) throws WriterException, IOException {            buildQRCode(200, content,filePath,fileName,imageType);        }    }    /**解码*/    public static class Decode {        private static final Map<DecodeHintType,Object> HINTS;        private static final Map<DecodeHintType,Object> HINTS_PURE;        static {            HINTS = new EnumMap<DecodeHintType,Object>(DecodeHintType.class);            HINTS.put(DecodeHintType.TRY_HARDER, Boolean.TRUE);            HINTS.put(DecodeHintType.POSSIBLE_FORMATS, EnumSet.allOf(BarcodeFormat.class));            HINTS_PURE = new EnumMap<DecodeHintType,Object>(HINTS);            HINTS_PURE.put(DecodeHintType.PURE_BARCODE, Boolean.TRUE);        }        /**         * 解析二维码         */        public static Collection<Result> readQRCode(File qrCode) throws ReaderException, IOException {            FileInputStream inputStream = new FileInputStream(qrCode);            return readQRCode(inputStream);        }        public static Collection<Result> readQRCode(InputStream inputStream) throws ReaderException, IOException {            LuminanceSource source = new BufferedImageLuminanceSource(ImageIO.read(inputStream));            BinaryBitmap binaryBitmap = new BinaryBitmap(new HybridBinarizer(source));            Collection<Result> results = new ArrayList<Result>(1);            ReaderException savedException = null;            Reader reader = new MultiFormatReader();            try {                //寻找多个条码                MultipleBarcodeReader multiReader = new GenericMultipleBarcodeReader(reader);                Result[] theResults = multiReader.decodeMultiple(binaryBitmap, HINTS);                if (theResults != null) {                    results.addAll(Arrays.asList(theResults));                }            } catch (ReaderException re) {                savedException = re;            }            if (results.isEmpty()) {                try {                    //寻找纯条码                    Result theResult = reader.decode(binaryBitmap, HINTS_PURE);                    if (theResult != null) {                        results.add(theResult);                    }                } catch (ReaderException re) {                    savedException = re;                }            }            if (results.isEmpty()) {                try {                    //寻找图片中的正常条码                    Result theResult = reader.decode(binaryBitmap, HINTS);                    if (theResult != null) {                        results.add(theResult);                    }                } catch (ReaderException re) {                    savedException = re;                }            }            if (results.isEmpty()) {                try {                    //再次尝试其他特殊处理                    BinaryBitmap hybridBitmap = new BinaryBitmap(new HybridBinarizer(source));                    Result theResult = reader.decode(hybridBitmap, HINTS);                    if (theResult != null) {                        results.add(theResult);                    }                } catch (ReaderException re) {                    savedException = re;                }            }            if (results.isEmpty()){                throw savedException;            }else {                return results;            }        }        public static Result readQRCodeResult(File qrCode) throws ReaderException, IOException {            FileInputStream inputStream = new FileInputStream(qrCode);            return readQRCodeResult(inputStream);        }        public static Result readQRCodeResult(InputStream inputStream) throws ReaderException, IOException {            Collection<Result> results = readQRCode(inputStream);            if (!results.isEmpty()){                //寻找结果集中非空的结果                for (Result result : results){                    if (result != null){                        return result;                    }                }            }            throw NotFoundException.getNotFoundInstance();        }    }}
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