import com.google.zxing.BarcodeFormat;
import com.google.zxing.EncodeHintType;
import com.google.zxing.MultiFormatWriter;
import com.google.zxing.common.BitMatrix;
import javax.imageio.ImageIO;
import java.io.File;
import java.io.OutputStream;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import java.awt.image.BufferedImage;
  
 public final class MatrixToImageWriter {
  
   private static final int BLACK = 0xFF000000;
   private static final int WHITE = 0xFFFFFFFF;
  
   private MatrixToImageWriter() {}
   
   @SuppressWarnings({ "unchecked", "rawtypes" })
  public static void main(String[] args) {
	try {
	     String content = "120605181003;http://www.cnblogs.com/jtmjx";
	     String path = "C://";
	      
	     MultiFormatWriter multiFormatWriter = new MultiFormatWriter();
	      
	     Map hints = new HashMap();
	     hints.put(EncodeHintType.CHARACTER_SET, "UTF-8");
	     BitMatrix bitMatrix = multiFormatWriter.encode(content, BarcodeFormat.QR_CODE, 400, 400,hints);
	     File file1 = new File(path,"餐巾紙.jpg");
	     MatrixToImageWriter.writeToFile(bitMatrix, "jpg", file1);
	      
	 } catch (Exception e) {
	     e.printStackTrace();
	 }
   }
   
   public static BufferedImage toBufferedImage(BitMatrix matrix) {
     int width = matrix.getWidth();
     int height = matrix.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, matrix.get(x, y) ? BLACK : WHITE);
       }
     }
     return image;
   }
    
   public static void writeToFile(BitMatrix matrix, String format, File file)
       throws IOException {
     BufferedImage image = toBufferedImage(matrix);
     if (!ImageIO.write(image, format, file)) {
       throw new IOException("Could not write an image of format " + format + " to " + file);
     }
   }
    
   public static void writeToStream(BitMatrix matrix, String format, OutputStream stream)
       throws IOException {
     BufferedImage image = toBufferedImage(matrix);
     if (!ImageIO.write(image, format, stream)) {
       throw new IOException("Could not write an image of format " + format);
     }
   }
 }