zxing二维码的生成与解码(java)

/**
 *
 */
package com.google.zxing;

import java.io.File;
import java.io.IOException;
import java.util.Hashtable;

import com.google.zxing.common.BitMatrix;
import com.google.zxing.common.HybridBinarizer;

/**
 * @author hwy
 *
 */
public class TestEnDeCode {

 /**
  *
  */
 public TestEnDeCode() {
  // TODO Auto-generated constructor stub
 }

 /**
  * @param args
  */
 public static void main(String[] args) {
  // TODO Auto-generated method stub

 }
 //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";
   Hashtable hints= new Hashtable();
   hints.put(EncodeHintType.CHARACTER_SET, "GBK");
   BitMatrix 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();
  }
 }
 
 //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, "GBK");
    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){
   
  }
 }

}