Zxing二维码 QR_CODE
在http://code.google.com/p/zxing/downloads/list下载zxing压缩包Zxing-1.5，使用core与javase包
代码如下：
解析中文时注意修改 编码方式
import java.awt.image.BufferedImage;import java.io.File;import java.io.IOException;import java.util.Hashtable;import javax.imageio.ImageIO;import com.google.zxing.BarcodeFormat;import com.google.zxing.BinaryBitmap;import com.google.zxing.DecodeHintType;import com.google.zxing.LuminanceSource;import com.google.zxing.MultiFormatReader;import com.google.zxing.MultiFormatWriter;import com.google.zxing.Reader;import com.google.zxing.ReaderException;import com.google.zxing.Result;import com.google.zxing.client.j2se.BufferedImageLuminanceSource;import com.google.zxing.common.ByteMatrix;import com.google.zxing.common.HybridBinarizer;public class Test{private static final int BLACK = 0xff000000;private static final int WHITE = 0xFFFFFFFF;/** * @param args */public static void main(String[] args){Test test = new Test();//编码 test.encode();//解码test.decode();}/** * 编码 * 在编码时需要将com.google.zxing.qrcode.encoder.Encoder.java中的 static final String * DEFAULT_BYTE_MODE_ENCODING = "ISO8859-1";修改为UTF-8，否则中文编译后解析不了 */public void encode(){try{String str = "1234567890";//"姓名：张三，性别：男，年龄：25，籍贯：湖南益阳";// 二维码内容//String str = "姓名：张三，性别：男，年龄：25，籍贯：湖南益阳";// 二维码内容String path = "c:\\test.png";ByteMatrix byteMatrix;byteMatrix = new MultiFormatWriter().encode(str,BarcodeFormat.QR_CODE, 200, 200);File file = new File(path);writeToFile(byteMatrix, "png", file);}catch (Exception e){e.printStackTrace();}}public static void writeToFile(ByteMatrix matrix, String format, File file)throws IOException{BufferedImage image = toBufferedImage(matrix);ImageIO.write(image, format, file);}public static BufferedImage toBufferedImage(ByteMatrix matrix){int width = matrix.getWidth();int height = matrix.getHeight();BufferedImage image = new BufferedImage(width, height,BufferedImage.TYPE_INT_ARGB);for (int x = 0; x < width; x++){for (int y = 0; y < height; y++){image.setRGB(x, y, matrix.get(x, y) == 0 ? BLACK : WHITE);}}return image;}/** * 解码 各类型条码 */public void decode(){try{String imgPath = "c:\\test.png";File file = new File(imgPath);BufferedImage image;try{image = ImageIO.read(file);if (image == null){System.out.println("Could not decode image");}LuminanceSource source = new BufferedImageLuminanceSource(image);BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));Result result;// 解码设置编码方式为：utf-8，result = new MultiFormatReader().decode(bitmap);String resultStr = result.getText();System.out.println("解析后内容：" + resultStr);}catch (IOException ioe){System.out.println(ioe.toString());}catch (ReaderException re){System.out.println(re.toString());}}catch (Exception ex){System.out.println(ex.toString());}}}
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