Zxing方式生产二维码方法

1. ackage com.wmsDemo.QRCode;  

   import com.google.zxing.common.BitMatrix;  

       

    import javax.imageio.ImageIO;  

    import java.io.File;  

    import java.io.OutputStream;  

    import java.io.IOException;  

    import java.awt.image.BufferedImage;  

       

       

    public final class MatrixToImageWriter {  

       

      private static final int BLACK = 0xFF000000;  

      private static final int WHITE = 0xFFFFFFFF;  

       

      private MatrixToImageWriter() {}  

       

         

      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);  

        }  

      }  

       

    }

2.  

   package com.wmsDemo.QRCode;

    

   import java.io.File;

   import java.util.HashMap;

   import java.util.Map;

    

   import com.google.zxing.BarcodeFormat;

   import com.google.zxing.EncodeHintType;

   import com.google.zxing.MultiFormatWriter;

   import com.google.zxing.common.BitMatrix;

      

   public class Test {  

      

       /** 

        * @param args 

        * @throws Exception  

        */ 

       public static void main(String[] args){  

      

   try {

           String content = "这是测试xing二维码生成"; 

   //        String path = "D:/tt";

           String path = "D:/java/apache-tomcat-7.0.47/webapps/wmsDemo/QRCode";

           MultiFormatWriter multiFormatWriter = new MultiFormatWriter();

           Map hints = new HashMap();  

           //内容所使用编码  

           hints.put(EncodeHintType.CHARACTER_SET, "gb2312");  

           BitMatrix bitMatrix = multiFormatWriter.encode(content,BarcodeFormat.QR_CODE, 200, 200, hints);  

           //生成二维码  

           File outputFile = new File(path,"14.jpg"); 

           MatrixToImageWriter.writeToFile(bitMatrix, "jpg", outputFile);  

   } catch (Exception e) {

       e.printStackTrace();

   }

    

       }  

      

   }