import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics2D;
import java.awt.image.BufferedImage;
import java.io.File;
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.WriterException;
import com.google.zxing.common.BitMatrix;
import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel;
/**
* 画制定logo和制定描述的二维码
*
* @author songyz
*
*/
public class ZXingCode {
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 = 500; // 二维码宽
private static final int HEIGHT = 500; // 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);
}
};
public static void main(String[] args) throws WriterException {
File logoFile = new File("D://QrCode/10999.png");
File QrCodeFile = new File("D://QrCode/01.png");
String url = "https://www.baidu.com/";
String note = "";
drawLogoQRCode(logoFile, QrCodeFile, url, note);
}
// 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 * 36 / 100, height * 36 / 100, width * 3 / 10, height * 3 / 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
} catch (Exception e) {
e.printStackTrace();
}
}
}
