二维码编码解码demo，包含swetake,ZXing

package ljk.QRcode.ZXing.addImage; 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.ReaderException; import com.google.zxing.Result; import com.google.zxing.WriterException; 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; import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel; /** * @ClassName: Test * @Description: zxing生成彩色带logo小图片的二维码示例 * 本代码依赖zxing-2.x.jar,请自己google下载jar包并导入到classpath中 * @author allen * @date 2013-5-26 上午10:41:32 */ @SuppressWarnings({"rawtypes","unchecked","finally"}) public class Test { public static void main(String[] args) throws IOException { Test test = new Test(); String content = "www.wodsy.com"; String inPath = "C:/Users/Administrator/Desktop/"; String outPath = "E:/MyeclipsProgect/QRCode/QRCode/img/"; // test.createQrCode(content, 300, 300, "C:/imgQRCode.jpg","C:/logo.png","png",0xFFE30022,0xFFF4C2C2); test.createQrCode(content, 300, 300, inPath+"QRcode1.png",inPath+"logo.png","png",0x000000,0xFFFFFF); // test.createQrCode(content, 300, 300, inPath+"QRcode2.png",inPath+"logost.png","png",0x000000,0xFFFFFF); } /** * @throws IOException * @Title: createQrCode * @Description: 生成二维码图片 * @param @param content 二维码文字内容 * @param @param width 二维码图片宽度 * @param @param height 二维码图片高度 * @param @param imagePath 二维码图片保存路径 * @param @param formate 二维码图片格式，jpg/png等等 * @return void * @throws */ public void createQrCode(String content,int width,int height,String imageSavePath,String formate) throws IOException { Hashtable<EncodeHintType, Object> hints = new Hashtable<EncodeHintType, Object>(); hints.put(EncodeHintType.CHARACTER_SET, "UTF-8"); // 指定纠错级别 /*共有四个级别L M Q H， L 7% M 15% Q 25% H 30% */ hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H); BitMatrix matrix = null; try { //BarcodeFormat.QR_CODE:设置条形码类型 /*支持如下几种条形码 public static final BarcodeFormat AZTEC; public static final BarcodeFormat CODABAR; public static final BarcodeFormat CODE_39; public static final BarcodeFormat CODE_93; public static final BarcodeFormat CODE_128; public static final BarcodeFormat DATA_MATRIX; public static final BarcodeFormat EAN_8; public static final BarcodeFormat EAN_13; public static final BarcodeFormat ITF; public static final BarcodeFormat MAXICODE; public static final BarcodeFormat PDF_417; public static final BarcodeFormat QR_CODE; public static final BarcodeFormat RSS_14; public static final BarcodeFormat RSS_EXPANDED; public static final BarcodeFormat UPC_A; public static final BarcodeFormat UPC_E; public static final BarcodeFormat UPC_EAN_EXTENSION; */ matrix = new MultiFormatWriter().encode(content,BarcodeFormat.QR_CODE, width, height, hints); writeToFile(matrix, formate, imageSavePath); } catch (WriterException e) { e.printStackTrace(); } } /** * @Title: createQrCode * @Description: 生成二维码图片[带logo小图片] * @param @param content 二维码文字内容[为了信息安全性，一般都要先进行数据加密] * @param @param width 二维码图片宽度 * @param @param height 二维码图片高度 * @param @param imageSavePath 二维码保存路径 * @param @param logoPath logo小图片路径 * @param @param formate 二维码图片格式，jpg/png等等 * @param @param fontColor 字体颜色 * @param @param bgColor 二维码图片背景色 * @param @throws IOException 可能会抛出磁盘IO读写异常 * @return void * @throws */ public void createQrCode(String content,int width,int height,String imageSavePath,String logoPath,String formate,int fontColor,int bgColor) throws IOException { Hashtable<EncodeHintType, Object> hints = new Hashtable<EncodeHintType, Object>(); //设置字符编码 hints.put(EncodeHintType.CHARACTER_SET, "UTF-8"); // 指定纠错等级 hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H); BitMatrix matrix = null; try { matrix = new MultiFormatWriter().encode(content,BarcodeFormat.QR_CODE, width, height, hints); writeToFile(matrix, formate, imageSavePath, logoPath, fontColor, bgColor); } catch (WriterException e) { e.printStackTrace(); } } /** * @Title: writeToFile * @Description: 图片写入到磁盘文件 * @param @param matrix * @param @param format * @param @param imagePath * @param @throws IOException * @return void * @throws */ public static void writeToFile(BitMatrix matrix, String format, String imagePath) throws IOException { File file = new File(imagePath); MatrixToImageWriter.writeToFile(matrix, format, file); } /** * @Title: writeToFile * @Description: 图片写入到磁盘文件[中间添加logo图片] * @param @param matrix * @param @param format * @param @param imagePath * @param @throws IOException * @return void * @throws */ public static void writeToFile(BitMatrix matrix, String formate, String imageSavePath,String logoPath,int fontColor,int bgColor) throws IOException { BufferedImage image = MatrixToImageWriterEx.write2File(matrix, formate, imageSavePath,new MatrixToImageConfigEx(fontColor,bgColor)); //添加logo图片 MatrixToImageWriterEx.overlapImage(image, imageSavePath, logoPath, formate); } /** * @Title: decode * @Description: 二维码解析 * @param @param imgPath 二维码图片路径 * @return void * @throws */ public String decode(String imgPath) { String content = ""; try { File file = new File(imgPath); if(!file.exists()) { return content; } BufferedImage image = null; try { image = ImageIO.read(file); if (null == image) { return content; } LuminanceSource source = new BufferedImageLuminanceSource(image); BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source)); Hashtable hints = new Hashtable(); hints.put(DecodeHintType.CHARACTER_SET, "UTF-8"); hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H); Result result = new MultiFormatReader().decode(bitmap, hints); content = result.getText(); } catch (IOException e1) { content = ""; } catch (ReaderException e2) { content = ""; } } catch (Exception ex) { ex.printStackTrace(); } finally { return content; } } }