Zxing2.2 生成QR二维码和一维码(条码)

在http://code.google.com/p/zxing/downloads/list下载zxing压缩包Zxing-2.2，

使用core包

代码如下：

 

package cn.wuhongbox.common.javaQR;

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.EncodeHintType;
import com.google.zxing.LuminanceSource;
import com.google.zxing.MultiFormatReader;
import com.google.zxing.MultiFormatWriter;
import com.google.zxing.Result;
import com.google.zxing.client.j2se.BufferedImageLuminanceSource;
import com.google.zxing.common.BitMatrix;
import com.google.zxing.common.HybridBinarizer;

public class QRUtil
{
	private static final String CODE = "utf-8";
	private static final int BLACK = 0xff000000;
	private static final int WHITE = 0xFFFFFFFF;

	/**
	 * 生成RQ二维码
	 * 
	 * @author wuhongbo
	 * @param str
	 *            内容
	 * @param height
	 *            高度（px）
	 * 
	 */
	public static BufferedImage getRQ(String str, Integer height)
	{
		if (height == null || height < 100)
		{
			height = 200;
		}

		try
		{
			// 文字编码
			Hashtable<EncodeHintType, String> hints = new Hashtable<EncodeHintType, String>();
			hints.put(EncodeHintType.CHARACTER_SET, CODE);

			BitMatrix bitMatrix = new MultiFormatWriter().encode(str,
					BarcodeFormat.QR_CODE, height, height, hints);

			return toBufferedImage(bitMatrix);

			// 输出方式
			// 网页
			// ImageIO.write(image, "png", response.getOutputStream());

			// 文件
			// ImageIO.write(image, "png", file);
		}
		catch (Exception e)
		{
			e.printStackTrace();
		}
		return null;
	}

	/**
	 * 生成一维码（128）
	 * 
	 * @author wuhongbo
	 * @param str
	 * @param width
	 * @param height
	 * @return
	 */
	public static BufferedImage getBarcode(String str, Integer width,
			Integer height)
	{

		if (width == null || width < 200)
		{
			width = 200;
		}

		if (height == null || height < 50)
		{
			height = 50;
		}

		try
		{
			// 文字编码
			Hashtable<EncodeHintType, String> hints = new Hashtable<EncodeHintType, String>();
			hints.put(EncodeHintType.CHARACTER_SET, CODE);

			BitMatrix bitMatrix = new MultiFormatWriter().encode(str,
					BarcodeFormat.CODE_128, width, height, hints);

			return toBufferedImage(bitMatrix);
		}
		catch (Exception e)
		{
			e.printStackTrace();
		}
		return null;
	}

	/**
	 * 生成二维码，写到文件中
	 * 
	 * @author wuhongbo
	 * @param str
	 * @param height
	 * @param file
	 * @throws IOException
	 */
	public static void getRQWriteFile(String str, Integer height, File file)
			throws IOException
	{
		BufferedImage image = getRQ(str, height);
		ImageIO.write(image, "png", file);
	}

	/**
	 * 生成一维码，写到文件中
	 * 
	 * @author wuhongbo
	 * @param str
	 * @param height
	 * @param file
	 * @throws IOException
	 */
	public static void getBarcodeWriteFile(String str, Integer width,
			Integer height, File file) throws IOException
	{
		BufferedImage image = getBarcode(str, width, height);
		ImageIO.write(image, "png", file);
	}

	/**
	 * 转换成图片
	 * 
	 * @author wuhongbo
	 * @param matrix
	 * @return
	 */
	private static BufferedImage toBufferedImage(BitMatrix matrix)
	{
		int width = matrix.getWidth();
		int height = matrix.getHeight();
		BufferedImage image = new BufferedImage(width, height,
				BufferedImage.TYPE_INT_ARGB);
		for (int x = 0; x < width; x++)
		{
			for (int y = 0; y < height; y++)
			{
				image.setRGB(x, y, matrix.get(x, y) ? BLACK : WHITE);
			}
		}
		return image;
	}

	/**
	 * 解码(二维、一维均可)
	 */
	public static String read(File file)
	{

		BufferedImage image;
		try
		{
			if (file == null || file.exists() == false)
			{
				throw new Exception(" File not found:" + file.getPath());
			}

			image = ImageIO.read(file);

			LuminanceSource source = new BufferedImageLuminanceSource(image);
			BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));

			Result result;

			// 解码设置编码方式为：utf-8，
			Hashtable hints = new Hashtable();
			hints.put(DecodeHintType.CHARACTER_SET, "utf-8");

			result = new MultiFormatReader().decode(bitmap, hints);

			return result.getText();

		}
		catch (Exception e)
		{
			e.printStackTrace();
		}

		return null;
	}

	public static void main(String[] args) throws Exception
	{
		File file = new File("c://1.png");
		// RQUtil.getRQwriteFile("吴宏波中华人民共和国", 200, file);

		// code39 大写字母、数字、-、
		// code128 
		QRUtil.getBarcodeWriteFile("12345678900-J_j", null,null, file);

		System.out.println("-----成生成功----");
		System.out.println();

		String s = QRUtil.read(file);

		System.out.println("-----解析成功----");
		System.out.println(s);
	}

}

 

评论

4 楼 fxltsbl 2017-07-04  

楼主，条码解析总是报com.google.zxing.NotFoundException，怎么样才能解析出来呢？

用楼主的代码貌似不行，怎么才能提高识别率呢？有没有类似的方法，指点下思路，感谢

3 楼 sundayfleet 2013-10-11  

我也是用Zxing2.2，下载官网上最新的版本。请问代码里的
import com.google.zxing.client.j2se.BufferedImageLuminanceSource; 在core里面没有j2se的包啊，请赐教！

2 楼 hongbo.wu 2013-08-21  

Function 写道

2.2版本core文件夹下已无 build.xml 楼主如何获取core.jar的？可否赐教

有源码呀，打包就行了

1 楼 Function 2013-06-13  

2.2版本core文件夹下已无 build.xml 楼主如何获取core.jar的？可否赐教