用zxing生成、解析二维码，zxing解析,import java.

用zxing生成、解析二维码，zxing解析,import java.

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();  test.encode(); 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 = "姓名：张三，性别：男，年龄：25，籍贯：中国北京，";// 二维码内容   String path = "D://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---------------------------------------------------- public void decode(){  try{   Reader reader = new MultiFormatReader();   String imgPath = "D://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;    Hashtable hints= new Hashtable();    hints.put(DecodeHintType.CHARACTER_SET, "utf-8");    //解码设置编码方式为：utf-8，    result = new MultiFormatReader().decode(bitmap,hints);    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());  } }}