Zxing方式生产二维码方法

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);  

     }  

   }  

 }

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();

}

    }  

}