import package

import java.awt.AlphaComposite;
import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics2D;
import java.awt.Rectangle;
import java.awt.Transparency;
import java.awt.geom.Ellipse2D;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
import java.util.Objects;
import javax.imageio.ImageIO;
import org.apache.commons.lang3.StringUtils;
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;

constant：

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 = 400; // 二维码宽
private static final int HEIGHT = 400; // 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);
}
};

tool method

// 生成带logo的二维码图片
public static void drawLogoQRCode(File logoFile, File codeFile, String qrUrl, String note) {
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 (Objects.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();
}
// 自定义文本描述
if (StringUtils.isNotEmpty(note)) {
// 新的图片，把带logo的二维码下面加上文字
BufferedImage outImage = new BufferedImage(400, 445, BufferedImage.TYPE_4BYTE_ABGR);
Graphics2D outg = outImage.createGraphics();
// 画二维码到新的面板
outg.drawImage(image, 0, 0, image.getWidth(), image.getHeight(), null);
// 画文字到新的面板
outg.setColor(Color.BLACK);
outg.setFont(new Font("楷体", Font.BOLD, 30)); // 字体、字型、字号
int strWidth = outg.getFontMetrics().stringWidth(note);
if (strWidth > 399) {
// //长度过长就截取前面部分
// 长度过长就换行
String note1 = note.substring(0, note.length() / 2);
String note2 = note.substring(note.length() / 2, note.length());
int strWidth1 = outg.getFontMetrics().stringWidth(note1);
int strWidth2 = outg.getFontMetrics().stringWidth(note2);
outg.drawString(note1, 200 - strWidth1 / 2, height + (outImage.getHeight() - height) / 2 + 12);
BufferedImage outImage2 = new BufferedImage(400, 485, BufferedImage.TYPE_4BYTE_ABGR);
Graphics2D outg2 = outImage2.createGraphics();
outg2.drawImage(outImage, 0, 0, outImage.getWidth(), outImage.getHeight(), null);
outg2.setColor(Color.BLACK);
outg2.setFont(new Font("宋体", Font.BOLD, 30)); // 字体、字型、字号
outg2.drawString(note2, 200 - strWidth2 / 2, outImage.getHeight() + (outImage2.getHeight() - outImage.getHeight()) / 2 + 5);
outg2.dispose();
outImage2.flush();
outImage = outImage2;
}
else {
outg.drawString(note, 200 - strWidth / 2, height + (outImage.getHeight() - height) / 2 + 12); // 画文字
}
outg.dispose();
outImage.flush();
image = outImage;
}
image.flush();
ImageIO.write(image, "png", codeFile); // TODO
System.out.println("success");
}
catch (Exception e) {
e.printStackTrace();
}
}

//剪切图片（圆形）
static String generateRoundness(String filePath, String savePath) throws Exception {
BufferedImage bi1 = ImageIO.read(new File(filePath));
// 根据需要是否使用 BufferedImage.TYPE_INT_ARGB
BufferedImage image = new BufferedImage(bi1.getWidth(), bi1.getHeight(), BufferedImage.TYPE_INT_ARGB);
Ellipse2D.Double shape = new Ellipse2D.Double(0, 0, bi1.getWidth(), bi1.getHeight());
Graphics2D g2 = image.createGraphics();
image = g2.getDeviceConfiguration().createCompatibleImage(bi1.getWidth(), bi1.getHeight(), Transparency.TRANSLUCENT);
g2 = image.createGraphics();
g2.setComposite(AlphaComposite.Clear);
g2.fill(new Rectangle(image.getWidth(), image.getHeight()));
g2.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC, 1.0f));
g2.setClip(shape);
// 使用 setRenderingHint 设置抗锯齿
g2.drawImage(bi1, 0, 0, null);
g2.dispose();
String generatePic = savePath + new Date().getTime() + ".png";// 保存文件的全路径
try {
ImageIO.write(image, "png", new File(generatePic));
}
catch (IOException e) {
e.printStackTrace();
}
return generatePic;
}

test

// test ：1.生成圆形的logo 2.生成二维码

public static void main(String[] args) throws Exception {
String originalPic = "F:/test/QR/originalPic/hotkidclub.jpg";// logo原文件
String savePath = "F:/test/QR/generate/";// 截切后logo 路径
// 1.处理（logo剪成圆形后返回文件全路径），2.创建生成二维码携带的logo文件
File logoFile = new File(generateRoundness(originalPic, savePath));
// 生成的二维码图
File QrCodeFile = new File("F:/test/QR/finalPic/" + new Date().getTime() + ".png");
String url = "http://www.xxxxxxx.com";
String note = "xxxxx";
drawLogoQRCode(logoFile, QrCodeFile, url, note);
}

googl zxing 生成二维码携带圆形logo和链接

import package

constant：

tool method

test

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