zxing生成和解析二维码

zxing 2.2+版本，jar是通过JDK 1.7编译的，本地环境JDK 1.6

此处使用了2.2版本(兼容JDK1.6)

 

1. maven工程引入

<dependency>
	<groupId>com.google.zxing</groupId>
	<artifactId>core</artifactId>
	<version>2.2</version>
</dependency>
<dependency>
	<groupId>com.google.zxing</groupId>
	<artifactId>javase</artifactId>
	<version>2.2</version>
</dependency>

 

2. Junit Test

public class QRCodeTest {

	@Test
	@Ignore
	public void testEncode() throws Exception {
		JSONObject json = new JSONObject();
		json.put("id", "1");
		json.put("title", "qrcode");
		json.put("content", "ade, test zxing.");
		json.put("createTime", new Date());
		String content = json.toJSONString();
		
		Map<EncodeHintType, Object> hints = new HashMap<EncodeHintType, Object>();
		hints.put(EncodeHintType.CHARACTER_SET, "UTF-8");
		
		BitMatrix bitMatrix = new MultiFormatWriter().encode(content, BarcodeFormat.QR_CODE, 200, 200, hints);// 生成矩阵
		MatrixToImageWriter.writeToStream(bitMatrix, "png", new FileOutputStream("D://zxing.png"));// 输出图像
	}
	
	@Test
	public void testDecode() throws Exception {
		Map<DecodeHintType, Object> hints = new HashMap<DecodeHintType, Object>();
		hints.put(DecodeHintType.CHARACTER_SET, "UTF-8");
		
		BufferedImage image = ImageIO.read(new File("D://zxing.png"));  
        LuminanceSource source = new BufferedImageLuminanceSource(image);  
        Binarizer binarizer = new HybridBinarizer(source);  
        BinaryBitmap binaryBitmap = new BinaryBitmap(binarizer);  
        Result result = new MultiFormatReader().decode(binaryBitmap, hints);
		System.out.println(result.getText());
	}
}