Xml代码

         
      
       com.google.zxing
          
      
       core
          
      
       1.7
      
     
         
      
       com.google.zxing
          
      
       javase
          
      
       1.7
      
     

java

package util.qrcode;import java.awt.p_w_picpath.BufferedImage;import java.io.Closeable;import java.io.File;import java.io.IOException;import java.io.InputStream;import java.io.OutputStream;import java.net.URL;import java.util.Hashtable;import java.util.List;import javax.p_w_picpathio.ImageIO;import com.google.zxing.BarcodeFormat;import com.google.zxing.BinaryBitmap;import com.google.zxing.EncodeHintType;import com.google.zxing.LuminanceSource;import com.google.zxing.MultiFormatReader;import com.google.zxing.MultiFormatWriter;import com.google.zxing.NotFoundException;import com.google.zxing.Result;import com.google.zxing.WriterException;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.qrcode.decoder.ErrorCorrectionLevel;public class QRCodeUtils {    /** 私有构造方法 */    private QRCodeUtils() { super(); }              private static final Hashtable
     
       ZXING_HINTS;              static {        ZXING_HINTS = new Hashtable
      
       ();        ZXING_HINTS.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H);        ZXING_HINTS.put(EncodeHintType.CHARACTER_SET, "UTF-8");    }        public void encode(String contents, File file,String filePostfix, BarcodeFormat format, int width, int height, Map
       
         hints) {        Hashtable hintsw = new Hashtable();            // 指定纠错等级             hintsw.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.L);             // 指定编码格式             hintsw.put(EncodeHintType.CHARACTER_SET, "UTF-8");  //要使用utf8 才能编码，并解码中文！            try {                 BitMatrix bitMatrix = new MultiFormatWriter().encode(contents,                         BarcodeFormat.QR_CODE, width, height, ZXING_HINTS);                 MatrixToImageWriter.writeToFile(bitMatrix, "png", file);                     } catch (Exception e) {                 e.printStackTrace();             }     }    /**     * 将二维码写入数据流     *     * @param out 数据流     * @param lines 数据     * @param width 二维码宽度     * @param height 二维码高度     */    public static void writeToOutputStream(OutputStream out, List
        
          lines, int width, int height) {        StringBuilder sb = new StringBuilder();        for (int i = 0; i < lines.size(); i ++) {            sb.append(lines.get(i));            if (i != lines.size() - 1) {                sb.append("\n");            }        }        writeToOutputStream(out, sb.toString(), width, height);    }              /**     * 将二维码写入数据流     *     * @param out 数据流     * @param contents 数据     * @param width 二维码宽度     * @param height 二维码高度     */    public static void writeToOutputStream(OutputStream out, String contents, int width, int height) {        try {            BitMatrix bitMatrix = new MultiFormatWriter().encode(contents, BarcodeFormat.QR_CODE, width, height, ZXING_HINTS);            MatrixToImageWriter.writeToStream(bitMatrix, "png", out);        } catch (WriterException e) {            throw new RuntimeException(e.getMessage(), e);        } catch (IOException e) {            throw new RuntimeException(e.getMessage(), e);        }    }              /**     * 将二维码写入文件     *     * @param file 文件     * @param lines 数据     * @param width 二维码宽度     * @param height 二维码高度     */    public static void writeToFile(File file, List
         
           lines, int width, int height) {        StringBuilder sb = new StringBuilder();        for (int i = 0; i < lines.size(); i ++) {            sb.append(lines.get(i));            if (i != lines.size() - 1) {                sb.append("\n");            }        }        writeToFile(file, sb.toString(), width, height);    }              /**     * 将二维码写入文件     *     * @param file 文件     * @param contents 数据     * @param width 二维码宽度     * @param height 二维码高度     */    public static void writeToFile(File file, String contents, int width, int height) {        try {            BitMatrix bitMatrix = new MultiFormatWriter().encode(contents, BarcodeFormat.QR_CODE, width, height, ZXING_HINTS);            MatrixToImageWriter.writeToFile(bitMatrix, "png", file);        } catch (WriterException e) {            throw new RuntimeException(e.getMessage(), e);        } catch (IOException e) {            throw new RuntimeException(e.getMessage(), e);        }    }    /**     * 解析二维码     *     * @param p_w_picpath 图片     * @return 信息     */    public static String decode(BufferedImage p_w_picpath) {        Result result = null;        LuminanceSource source = new BufferedImageLuminanceSource(p_w_picpath);        BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));        try {            result = new MultiFormatReader().decode(bitmap, ZXING_HINTS);        } catch (NotFoundException e) {            throw new RuntimeException(e.getMessage(), e);        }        return result.getText();    }              /**     * 解析二维码     *     * @param file 图片     * @return 信息     */    public static String decode(File file) {        BufferedImage p_w_picpath = null;        try {            p_w_picpath = ImageIO.read(file);        } catch (IOException e) {            throw new RuntimeException(e.getMessage(), e);        }        return decode(p_w_picpath);    }              /**     * 解析二维码     *     * @param input 图片     * @return 信息     */    public static String decode(InputStream input) {        BufferedImage p_w_picpath = null;        try {            p_w_picpath = ImageIO.read(input);        } catch (IOException e) {            throw new RuntimeException(e.getMessage(), e);        }        return decode(p_w_picpath);    }              /**     * 解析二维码     *     * @param url 图片     * @return 信息     */    public static String decode(URL url) {        BufferedImage p_w_picpath = null;        try {            p_w_picpath = ImageIO.read(url);        } catch (IOException e) {            throw new RuntimeException(e.getMessage(), e);        }        return decode(p_w_picpath);    }              /**     * 关闭     *     * @param closeable 关闭对象     */    public static void closeQuietly(Closeable closeable) {        if (closeable == null) return;        try { closeable.close(); } catch (Exception e) {}    }}