电脑生成读取二维码

package com.lizongbo.qrcode;

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.client.j2se.MatrixToImageWriter;
import com.google.zxing.common.BitMatrix;
import com.google.zxing.common.HybridBinarizer;

public class TestEnDeCode {

public TestEnDeCode() {
}

/**
  * @param args
  */
public static void main(String[] args) {
  TestEnDeCode t = new TestEnDeCode();
  t.encode();
  t.decode();
}

// 编码
public void encode() {
  try {
   String str = "CN:男;COP:公司;ZW:职务";// 二维码内容
   String path = "D:\\hwy.png";
   BitMatrix byteMatrix;
   byteMatrix = new MultiFormatWriter().encode(
     new String(str.getBytes("utf-8"), "iso-8859-1"),
     BarcodeFormat.QR_CODE, 200, 200);
   File file = new File(path);

   MatrixToImageWriter.writeToFile(byteMatrix, "png", file);
  } catch (Exception e) {
   e.printStackTrace();
  }
}

// 解码
public void decode() {
  try {
   Reader reader = new MultiFormatReader();
   String imgPath = "D:\\hwy.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");
    result = new MultiFormatReader().decode(bitmap, hints);
    String resultStr = result.getText();
    System.out.println(resultStr);

   } catch (IOException ioe) {
    System.out.println(ioe.toString());
   } catch (ReaderException re) {
    System.out.println(re.toString());
   }
  } catch (Exception ex) {

  }
}
}