批量二维码生成

最新推荐文章于 2025-03-17 10:59:10 发布

超级大蚂蚁

最新推荐文章于 2025-03-17 10:59:10 发布

阅读量502

点赞数

分类专栏：笔记文章标签：蓝桥杯 java webview

本文链接：https://blog.youkuaiyun.com/jintaocccq/article/details/124946049

版权

本文介绍了如何使用Google的ZXing库在Java中生成带Logo的二维码，包括创建二维码的方法、插入Logo的步骤，以及解析二维码的基本操作。重点在于QRCodeUtil类中的核心功能实现和错误纠正级别设置。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

<dependency>
    <groupId>com.google.zxing</groupId>
    <artifactId>core</artifactId>
    <version>3.1.0</version>
</dependency>
<dependency>
    <groupId>com.google.zxing</groupId>
    <artifactId>javase</artifactId>
    <version>3.1.0</version>
</dependency>

package com.example.demo;

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.font.FontRenderContext;
import java.awt.geom.AffineTransform;
import java.awt.geom.Rectangle2D;
import java.awt.geom.RoundRectangle2D;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.io.OutputStream;
import java.util.Hashtable;
import java.util.Random;

/**
 * 二维码工具类
 */
public class QRCodeUtil {
    private static final String CHARSET = "utf-8";
    private static final String FORMAT = "JPG";
    // 二维码尺寸
    private static final int QRCODE_SIZE = 300;
    // LOGO宽度
    private static final int LOGO_WIDTH = 60;
    // LOGO高度
    private static final int LOGO_HEIGHT = 60;

    private static BufferedImage createImage(String content, String logoPath, 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&#

最低0.47元/天解锁文章