zxing二维码的生成与解码(java)

Java代码


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() {

// TODO Auto-generated constructor stub

}

/**

* @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("GBK"),"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, "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) {

}

}

}

zxing.jar (371 KB)
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