import com.google.zxing.BarcodeFormat; import com.google.zxing.EncodeHintType; import com.google.zxing.MultiFormatWriter; import com.google.zxing.common.BitMatrix; import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel; import javax.imageio.ImageIO; import java.awt.*; import java.awt.image.BufferedImage; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; import java.net.URL; import java.util.HashMap; import java.util.Map; import java.util.zip.ZipEntry; import java.util.zip.ZipOutputStream; import static java.util.Objects.nonNull; public class QrCodeZXingUtils { private static final int QRCOLOR = 0xFF000000; // 默认是黑色 private static final int BGWHITE = 0xFFFFFFFF; // 背景颜色 private static final int WIDTH = 200; // 二维码宽 private static final int HEIGHT = 200; // 二维码高 // 用于设置QR二维码参数 private static Map<EncodeHintType, Object> hints = new HashMap<EncodeHintType, Object>() { private static final long serialVersionUID = 1L; { put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H);// 设置QR二维码的纠错级别(H为最高级别)具体级别信息 put(EncodeHintType.CHARACTER_SET, "utf-8");// 设置编码方式 put(EncodeHintType.MARGIN, 0); } }; // 生成带logo的二维码图片 /*** *@param logoFile logo图地址 * @param codeFile 二维码生成地址 * @param qrUrl 扫描二维码方位地址 * */ public static void drawLogoQRCode(File logoFile, File codeFile, String qrUrl) { try { MultiFormatWriter multiFormatWriter = new MultiFormatWriter(); // 参数顺序分别为:编码内容,编码类型,生成图片宽度,生成图片高度,设置参数 BitMatrix bm = multiFormatWriter.encode(qrUrl, BarcodeFormat.QR_CODE, WIDTH, HEIGHT, hints); BufferedImage image = new BufferedImage(WIDTH, HEIGHT, BufferedImage.TYPE_INT_RGB); // 开始利用二维码数据创建Bitmap图片,分别设为黑(0xFFFFFFFF)白(0xFF000000)两色 for (int x = 0; x < WIDTH; x++) { for (int y = 0; y < HEIGHT; y++) { image.setRGB(x, y, bm.get(x, y) ? QRCOLOR : BGWHITE); } } int width = image.getWidth(); int height = image.getHeight(); if (nonNull(logoFile) && logoFile.exists()) { // 构建绘图对象 Graphics2D g = image.createGraphics(); // 读取Logo图片 BufferedImage logo = ImageIO.read(logoFile); // 开始绘制logo图片 g.drawImage(logo, width * 2 / 5, height * 2 / 5, width * 2 / 10, height * 2 / 10, null); g.dispose(); logo.flush(); } image.flush(); ImageIO.write(image, "png", codeFile); zip(image); } catch (Exception e) { e.printStackTrace(); } } // 添加边框,未成功,待测试 private static BufferedImage addBorder(BufferedImage image) { int borderWidth = 10; // 边框宽度 BufferedImage borderedImage = new BufferedImage(image.getWidth() + borderWidth * 2, image.getHeight() + borderWidth * 2, BufferedImage.TYPE_INT_RGB); // 使用白色填充边框区域 for (int x = 0; x < borderedImage.getWidth(); x++) { for (int y = 0; y < borderedImage.getHeight(); y++) { if (x < borderWidth || x >= borderWidth + image.getWidth() || y < borderWidth || y >= borderWidth + image.getHeight()) { borderedImage.setRGB(x, y, 0xFFFFFFFF); // 白色 } } } // 将二维码图像复制到带有边框的图像上 for (int x = borderWidth, y = borderWidth; x - borderWidth < image.getWidth() && y - borderWidth < image.getHeight(); x++, y++) { borderedImage.setRGB(x, y, image.getRGB(x - borderWidth, y - borderWidth)); } return borderedImage; } public static void main(String[] args) throws Exception { //头像logo File logoFile = new File("C:\\Users\\86181\\Desktop\\2.png"); //生成二维码地址 File QrCodeFile = new File("C:\\Users\\86181\\Desktop\\3.png"); String url = "https://www.baidu.com/"; drawLogoQRCode(logoFile, QrCodeFile, url); //mergeImage("C:\\Users\\86181\\Desktop\\66.png", "C:\\Users\\86181\\Desktop\\3.png", "C:\\Users\\86181\\Desktop\\test.png","30", "100"); } /*** * 二维码嵌套背景图的方法 *@param bigPath 背景图 - 可传网络地址 *@param smallPath 二维码地址 - 可传网络地址 *@param newFilePath 生成新图片的地址 * @param x 二维码x坐标 * @param y 二维码y坐标 * */ public static void mergeImage(String bigPath, String smallPath, String newFilePath,String x, String y) throws IOException { try { BufferedImage small; BufferedImage big; if (bigPath.contains("http://") || bigPath.contains("https://")) { URL url = new URL(bigPath); big = ImageIO.read(url); } else { big = ImageIO.read(new File(bigPath)); } if (smallPath.contains("http://") || smallPath.contains("https://")) { URL url = new URL(smallPath); small = ImageIO.read(url); } else { small = ImageIO.read(new File(smallPath)); } Graphics2D g = big.createGraphics(); float fx = Float.parseFloat(x); float fy = Float.parseFloat(y); int x_i = (int) fx; int y_i = (int) fy; g.drawImage(small, x_i, y_i, small.getWidth(), small.getHeight(), null); Font font = new Font("SimSun", Font.BOLD, 36); // 使用宋体字体,设置字体大小为36 g.setFont(font); g.setColor(Color.BLACK); // 设置文字颜色为红色 String text = "你好,世界!"; // 要添加的文字内容 g.drawString(text, 300, 400); // 在指定位置绘制文字 g.dispose(); ImageIO.write(big, "png", new File(newFilePath)); } catch (Exception e) { e.printStackTrace(); } } public static void zip(BufferedImage image) { try { File outputFile = new File("output.png"); ImageIO.write(image, "png", outputFile); FileOutputStream fos = new FileOutputStream("imageFolder.zip"); ZipOutputStream zos = new ZipOutputStream(fos); ZipEntry zipEntry = new ZipEntry("output.png"); zos.putNextEntry(zipEntry); FileInputStream fis = new FileInputStream(outputFile); byte[] buffer = new byte[1024]; int length; while ((length = fis.read(buffer)) > 0) { zos.write(buffer, 0, length); } fis.close(); zos.closeEntry(); zos.close(); // Delete the original file outputFile.delete(); } catch (IOException e) { e.printStackTrace(); } } }
标签:int,image,导出,new,二维码,borderWidth,import,logo From: https://www.cnblogs.com/foreverstudy/p/18297848