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| | | package com.ruoyi.chargingPile.util; |
| | | |
| | | import com.google.zxing.*; |
| | | 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; |
| | | import org.slf4j.Logger; |
| | | import org.slf4j.LoggerFactory; |
| | | |
| | | import javax.imageio.ImageIO; |
| | | import java.awt.*; |
| | | import java.awt.geom.RoundRectangle2D; |
| | | import java.awt.image.BufferedImage; |
| | | import java.io.File; |
| | | import java.io.OutputStream; |
| | | import java.util.Hashtable; |
| | | import java.util.Random; |
| | | |
| | | /** |
| | | * 二维码工具类 |
| | | */ |
| | | public class QRCodeUtils { |
| | | |
| | | private static Logger logger = LoggerFactory.getLogger(QRCodeUtils.class); |
| | | |
| | | 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<EncodeHintType, Object> hints = new Hashtable<EncodeHintType, Object>(); |
| | | 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 image = new BufferedImage(width, height, |
| | | BufferedImage.TYPE_INT_RGB); |
| | | for (int x = 0; x < width; x++) { |
| | | for (int y = 0; y < height; y++) { |
| | | image.setRGB(x, y, bitMatrix.get(x, y) ? 0xFF000000 |
| | | : 0xFFFFFFFF); |
| | | } |
| | | } |
| | | if (imgPath == null || "".equals(imgPath)) { |
| | | return image; |
| | | } |
| | | // 插入图片 |
| | | QRCodeUtils.insertImage(image, imgPath, needCompress); |
| | | return image; |
| | | } |
| | | |
| | | /** |
| | | * 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()) { |
| | | logger.debug(""+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 image = src.getScaledInstance(width, height, |
| | | Image.SCALE_SMOOTH); |
| | | BufferedImage tag = new BufferedImage(width, height, |
| | | BufferedImage.TYPE_INT_RGB); |
| | | Graphics g = tag.getGraphics(); |
| | | g.drawImage(image, 0, 0, null); // 绘制缩小后的图 |
| | | g.dispose(); |
| | | src = image; |
| | | } |
| | | // 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 String encode(String content, String imgPath, String destPath, |
| | | boolean needCompress) throws Exception { |
| | | BufferedImage image = QRCodeUtils.createImage(content, imgPath, |
| | | needCompress); |
| | | mkdirs(destPath); |
| | | ImageIO.write(image, FORMAT_NAME, new File(destPath)); |
| | | return 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) |
| | | * @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 { |
| | | QRCodeUtils.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 { |
| | | QRCodeUtils.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 { |
| | | QRCodeUtils.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 image = QRCodeUtils.createImage(content, imgPath, |
| | | needCompress); |
| | | ImageIO.write(image, 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 { |
| | | QRCodeUtils.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 image; |
| | | image = ImageIO.read(file); |
| | | if (image == null) { |
| | | return null; |
| | | } |
| | | BufferedImageLuminanceSource source = new BufferedImageLuminanceSource( |
| | | image); |
| | | BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source)); |
| | | Result result; |
| | | Hashtable<DecodeHintType, Object> hints = new Hashtable<DecodeHintType, Object>(); |
| | | 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 QRCodeUtils.decode(new File(path)); |
| | | } |
| | | |
| | | public static void main(String[] args) throws Exception { |
| | | String text = "http://www.baidu.com"; //这里设置自定义网站url |
| | | String logoPath = "C:\\Users\\admin\\Desktop\\test\\test.jpg"; |
| | | String destPath = "C:\\Users\\admin\\Desktop\\test\\"; |
| | | logger.debug(QRCodeUtils.encode(text, logoPath, destPath, true)); |
| | | } |
| | | } |