创意编码艺术：用Java绘就你的二维码艺术王国（附源代码）！

package com.qgp.study; import com.google.zxing.BarcodeFormat; import com.google.zxing.EncodeHintType; import com.google.zxing.common.BitMatrix; import com.google.zxing.qrcode.QRCodeWriter; import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel; import javax.imageio.ImageIO; import java.awt.image.BufferedImage; import java.io.File; import java.io.IOException; import java.io.UnsupportedEncodingException; import java.net.URLEncoder; /** * @Description: * @Author: qianguopeng * @createTime: 2023年08月18日 13:41:14 * @version: 版本：1.0 */ public class QRCodeWithLink { public static void main(String[] args) throws UnsupportedEncodingException { String link = "https://blog.csdn.net/TPQTX?type=blog"; // 要生成二维码的链接 String encodedLink = URLEncoder.encode(link, "UTF-8"); String weChatLink = "weixin://dl/scan?qr_code=" + encodedLink; // 微信跳转链接格式 int size = 300; // 二维码尺寸 String filePath = "D:\\code\\study-demo\\QR-Code-demo\\wechat_qrcode.png"; // 保存的文件路径 try { QRCodeWriter qrCodeWriter = new QRCodeWriter(); // 设置二维码参数 EncodeHintType hintType = EncodeHintType.ERROR_CORRECTION; ErrorCorrectionLevel level = ErrorCorrectionLevel.H; BitMatrix bitMatrix = qrCodeWriter.encode(weChatLink, BarcodeFormat.QR_CODE, size, size); BufferedImage qrImage = new BufferedImage(size, size, BufferedImage.TYPE_INT_RGB); int qrColor = 0xFF000000; // 黑色 int backgroundColor = 0xFFFFFFFF; // 白色 // 渲染二维码 for (int x = 0; x < size; x++) { for (int y = 0; y < size; y++) { qrImage.setRGB(x, y, bitMatrix.get(x, y) ? qrColor : backgroundColor); } } // 保存二维码图像 File outputFile = new File(filePath); ImageIO.write(qrImage, "png", outputFile); System.out.println("WeChat QR Code generated and saved."); // 在默认图像查看器中显示二维码 displayQRCodeImage(outputFile); } catch (Exception e) { e.printStackTrace(); } } // 在默认图像查看器中显示图像 private static void displayQRCodeImage(File imageFile) throws IOException { if (imageFile.exists()) { String osName = System.getProperty("os.name").toLowerCase(); Runtime rt = Runtime.getRuntime(); try { if (osName.contains("win")) { rt.exec("rundll32 url.dll,FileProtocolHandler " + imageFile.getAbsolutePath()); } else if (osName.contains("mac")) { rt.exec("open " + imageFile.getAbsolutePath()); } else if (osName.contains("nix") || osName.contains("nux")) { rt.exec("xdg-open " + imageFile.getAbsolutePath()); } } catch (IOException e) { e.printStackTrace(); } } } }