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){

}
}

}