package com.zzq;import java.awt.BasicStroke;import java.awt.Color;import java.awt.Font;import java.awt.Graphics;import java.awt.Graphics2D;import java.awt.Image;import java.awt.Shape;import java.awt.font.FontRenderContext;import java.awt.geom.AffineTransform;import java.awt.geom.Rectangle2D;import java.awt.geom.RoundRectangle2D;import java.awt.p_w_picpath.BufferedImage;import java.io.File;import java.io.OutputStream;import java.util.Hashtable;import java.util.Random;import javax.p_w_picpathio.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.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;import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel;/** * 二维码工具类 * 请自行添加 google zxing包 * */public class QRCodeUtil { private static final String CHARSET = "utf-8"; private static final String FORMAT_NAME = "JPG"; // 二维码尺寸 private static final int QRCODE_SIZE = 300; // LOGO宽度 private static final int WIDTH = 60; // LOGO高度 private static final int HEIGHT = 60; private static BufferedImage createImage(String content, String imgPath, boolean needCompress) throws Exception { Hashtable hints = new Hashtable (); hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H); hints.put(EncodeHintType.CHARACTER_SET, CHARSET); // hints.put(EncodeHintType.MARGIN, 1); BitMatrix bitMatrix = new MultiFormatWriter().encode(content, BarcodeFormat.QR_CODE, QRCODE_SIZE, QRCODE_SIZE, hints); int width = bitMatrix.getWidth(); int height = bitMatrix.getHeight(); BufferedImage p_w_picpath = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB); for (int x = 0; x < width; x++) { for (int y = 0; y < height; y++) { p_w_picpath.setRGB(x, y, bitMatrix.get(x, y) ? 0xFF000000 : 0xFFFFFFFF); } } if (imgPath == null || "".equals(imgPath)) { return p_w_picpath; } // 插入图片 QRCodeUtil.insertImage(p_w_picpath, imgPath, needCompress); return p_w_picpath; } /** * 插入LOGO * * @param source * 二维码图片 * @param imgPath * LOGO图片地址 * @param needCompress * 是否压缩 * @throws Exception */ private static void insertImage(BufferedImage source, String imgPath, boolean needCompress) throws Exception { File file = new File(imgPath); if (!file.exists()) { System.err.println(""+imgPath+" 该文件不存在！"); return; } Image src = ImageIO.read(new File(imgPath)); int width = src.getWidth(null); int height = src.getHeight(null); if (needCompress) { // 压缩LOGO if (width > WIDTH) { width = WIDTH; } if (height > HEIGHT) { height = HEIGHT; } Image p_w_picpath = src.getScaledInstance(width, height, Image.SCALE_SMOOTH); BufferedImage tag = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB); Graphics g = tag.getGraphics(); g.drawImage(p_w_picpath, 0, 0, null); // 绘制缩小后的图 g.dispose(); src = p_w_picpath; } // 插入LOGO Graphics2D graph = source.createGraphics(); int x = (QRCODE_SIZE - width) / 2; int y = (QRCODE_SIZE - height) / 2; graph.drawImage(src, x, y, width, height, null); Shape shape = new RoundRectangle2D.Float(x, y, width, width, 6, 6); graph.setStroke(new BasicStroke(3f)); graph.draw(shape); graph.dispose(); } /** * 生成文字图片 * @param str * @param font * @param outFile * @throws Exception * @author The_Monster 2015年3月12日 * @version 1.0 */ public static void createImageForName(String str,Font font,File outFile) throws Exception{ //获取font的样式应用在str上的整个矩形 Rectangle2D r=font.getStringBounds(str, new FontRenderContext(AffineTransform.getScaleInstance(1, 1),false,false)); int unitHeight=(int)Math.floor(r.getHeight());//获取单个字符的高度 //获取整个str用了font样式的宽度这里用四舍五入后+1保证宽度绝对能容纳这个字符串作为图片的宽度 int width=(int)Math.round(r.getWidth())+1; int height=unitHeight+3;//把单个字符的高度+3保证高度绝对能容纳字符串作为图片的高度 //创建图片 BufferedImage p_w_picpath=new BufferedImage(width,height,BufferedImage.TYPE_INT_BGR); Graphics g=p_w_picpath.getGraphics(); g.setColor(Color.WHITE); g.fillRect(0, 0, width, height);//先用白色填充整张图片,也就是背景 g.setColor(Color.black);//在换成黑色 g.setFont(font);//设置画笔字体 g.drawString(str, 0, font.getSize());//画出字符串 g.dispose(); ImageIO.write(p_w_picpath, "png", outFile);//输出png图片 } /** * 生成二维码(内嵌LOGO) * * @param content * 内容 * @param imgPath * LOGO地址 * @param destPath * 存放目录 * @param needCompress * 是否压缩LOGO * @throws Exception */ public static void encode(String content, String imgPath, String destPath, boolean needCompress) throws Exception { BufferedImage p_w_picpath = QRCodeUtil.createImage(content, imgPath, needCompress); mkdirs(destPath); String file = new Random().nextInt(99999999)+".jpg"; ImageIO.write(p_w_picpath, FORMAT_NAME, new File(destPath+"/"+file)); } /** * 当文件夹不存在时，mkdirs会自动创建多层目录，区别于mkdir．(mkdir如果父目录不存在则会抛出异常) * @author lanyuan * Email: mmm333zzz520@163.com * @date 2013-12-11 上午10:16:36 * @param destPath 存放目录 */ public static void mkdirs(String destPath) { File file =new File(destPath); //当文件夹不存在时，mkdirs会自动创建多层目录，区别于mkdir．(mkdir如果父目录不存在则会抛出异常) if (!file.exists() && !file.isDirectory()) { file.mkdirs(); } } /** * 生成二维码(内嵌LOGO) * * @param content * 内容 * @param imgPath * LOGO地址 * @param destPath * 存储地址 * @throws Exception */ public static void encode(String content, String imgPath, String destPath) throws Exception { QRCodeUtil.encode(content, imgPath, destPath, false); } /** * 生成二维码 * * @param content * 内容 * @param destPath * 存储地址 * @param needCompress * 是否压缩LOGO * @throws Exception */ public static void encode(String content, String destPath, boolean needCompress) throws Exception { QRCodeUtil.encode(content, null, destPath, needCompress); } /** * 生成二维码 * * @param content * 内容 * @param destPath * 存储地址 * @throws Exception */ public static void encode(String content, String destPath) throws Exception { QRCodeUtil.encode(content, null, destPath, false); } /** * 生成二维码(内嵌LOGO) * * @param content * 内容 * @param imgPath * LOGO地址 * @param output * 输出流 * @param needCompress * 是否压缩LOGO * @throws Exception */ public static void encode(String content, String imgPath, OutputStream output, boolean needCompress) throws Exception { BufferedImage p_w_picpath = QRCodeUtil.createImage(content, imgPath, needCompress); ImageIO.write(p_w_picpath, FORMAT_NAME, output); } /** * 生成二维码 * * @param content * 内容 * @param output * 输出流 * @throws Exception */ public static void encode(String content, OutputStream output) throws Exception { QRCodeUtil.encode(content, null, output, false); } /** * 解析二维码 * * @param file * 二维码图片 * @return * @throws Exception */ public static String decode(File file) throws Exception { BufferedImage p_w_picpath; p_w_picpath = ImageIO.read(file); if (p_w_picpath == null) { return null; } BufferedImageLuminanceSource source = new BufferedImageLuminanceSource( p_w_picpath); BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source)); Result result; Hashtable hints = new Hashtable (); hints.put(DecodeHintType.CHARACTER_SET, CHARSET); result = new MultiFormatReader().decode(bitmap, hints); String resultStr = result.getText(); return resultStr; } /** * 解析二维码 * * @param path * 二维码图片地址 * @return * @throws Exception */ public static String decode(String path) throws Exception { return QRCodeUtil.decode(new File(path)); } /** * Test * @param args * @throws Exception * @author The_Monster 2015年3月17日 * @version 1.0 */ public static void main(String[] args) throws Exception { String text = "章志勤"; //此处的content是名片二维码的格式 必须是此种格式 String content = "MECARD:N:章志勤;TEL:00000000000;TEL:13304012214;EMAIL:zzqnobody@126.com;URL:http://zzqnobody.blog.51cto.com;ADR:上海;"; //先创建文字图片 createImageForName(text,new Font("宋体",Font.BOLD,18),new File("c:/a.jpg")); encode(content, "e:/a.jpg", "c:/barcode", true); System.out.println("---success"); }}