content: package org.springblade.mng.utils.ltsms;
  
  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 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;
  
  /**
   * @author zhang
   * @date 2021/9/30 8:19
   */
  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<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
  		QRCodeUtil.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()) {
  			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 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 = QRCodeUtil.createImage(content, imgPath,
  			needCompress);
  		mkdirs(destPath);
  		String file = new Random().nextInt(99999999)+".jpg";
  		ImageIO.write(image, FORMAT_NAME, new File(destPath+"/"+file));
  		return 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)
  	 * @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 image = QRCodeUtil.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 {
  		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 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 QRCodeUtil.decode(new File(path));
  	}
  
  
  }
  