import java.awt.BasicStroke;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.Shape;
import java.awt.geom.RoundRectangle2D;
import java.awt.image.BufferedImage;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.OutputStream;
import java.util.Hashtable;
import java.util.Random;
import javax.imageio.ImageIO;
import org.apache.axiom.util.base64.Base64Utils;
import com.google.zxing.BarcodeFormat;
import com.google.zxing.BinaryBitmap;
import com.google.zxing.DecodeHintType;
import com.google.zxing.EncodeHintType;
import com.google.zxing.MultiFormatReader;
import com.google.zxing.MultiFormatWriter;
import com.google.zxing.Result;
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;
* 二维码生成工具
* @author wst(shi-tao.wen) 2022年7月29日 下午6:09:31
*
*/
public class GeneralQrcodeUtil { private static final String CHARSET = "utf-8";
private static final String FORMAT_NAME = "JPG";
private static final int QRCODE_SIZE = 300;
private static final int WIDTH = 60;
private static final int HEIGHT = 60;
private static BufferedImage createImage(String content, String imgPath, 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++) { image.setRGB(x, y, bitMatrix.get(x, y) ? 0xFF000000 : 0xFFFFFFFF);
}
}
if (imgPath == null || "".equals(imgPath)) { return image;
}
GeneralQrcodeUtil.insertImage(image, imgPath, needCompress);
return image;
}
* 插入LOGO
*
* @param source 二维码图片
* @param imgPath LOGO图片地址
* @param needCompress 是否压缩
* @throws Exception
*/
private static void insertImage(BufferedImage source, String imgPath, boolean needCompress) throws Exception { File file = new File(imgPath);
if (!file.exists()) { System.err.println(""+imgPath+" 该文件不存在！"); return;
}
Image src = ImageIO.read(new File(imgPath));
int width = src.getWidth(null);
int height = src.getHeight(null);
if (needCompress) { if (width > WIDTH) { width = WIDTH;
}
if (height > HEIGHT) { height = HEIGHT;
}
Image image = src.getScaledInstance(width, height, Image.SCALE_SMOOTH);
BufferedImage tag = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
Graphics g = tag.getGraphics();
g.drawImage(image, 0, 0, null);
g.dispose();
src = image;
}
Graphics2D graph = source.createGraphics();
int x = (QRCODE_SIZE - width) / 2;
int y = (QRCODE_SIZE - height) / 2;
graph.drawImage(src, x, y, width, height, null);
Shape shape = new RoundRectangle2D.Float(x, y, width, width, 6, 6);
graph.setStroke(new BasicStroke(3f));
graph.draw(shape);
graph.dispose();
}
* 生成二维码(内嵌LOGO)
*
* @param content 内容
* @param imgPath LOGO地址
* @param destPath 存放目录
* @param needCompress 是否压缩LOGO
* @throws Exception
*/
public static String encode(String content, String imgPath, String destPath, boolean needCompress) throws Exception { BufferedImage image = GeneralQrcodeUtil.createImage(content, imgPath, needCompress);
if (destPath != null) mkdirs(destPath);
String file = new Random().nextInt(99999999)+".jpg";
ImageIO.write(image, FORMAT_NAME, new File(destPath+"/"+file));
return file;
}
* 生成二维码转base64
* @author wst(shi-tao.wen) 2022年7月29日 下午6:32:54
* @param content
* @param imgPath
* @param destPath
* @param needCompress
* @return
* @throws Exception
*/
public static String encodeToBase64(String content, String imgPath, String destPath, boolean needCompress) throws Exception { BufferedImage image = GeneralQrcodeUtil.createImage(content, imgPath, needCompress);
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
ImageIO.write(image, "jpg", outputStream);
String base64Img = Base64Utils.encode(outputStream.toByteArray());
return base64Img;
}
* 当文件夹不存在时，mkdirs会自动创建多层目录，区别于mkdir．(mkdir如果父目录不存在则会抛出异常)
* @date 2013-12-11 上午10:16:36
* @param destPath 存放目录
*/
public static void mkdirs(String destPath) { File file =new File(destPath);
if (!file.exists() && !file.isDirectory()) { file.mkdirs();
}
}
* 生成二维码(内嵌LOGO)
*
* @param content 内容
* @param imgPath LOGO地址
* @param destPath 存储地址
* @throws Exception
*/
public static void encode(String content, String imgPath, String destPath) throws Exception { GeneralQrcodeUtil.encode(content, imgPath, destPath, false);
}
* 生成二维码
*
* @param content 内容
* @param destPath 存储地址
* @param needCompress 是否压缩LOGO
* @throws Exception
*/
public static String encode(String content, String destPath, boolean needCompress) throws Exception { if (destPath != null) { return GeneralQrcodeUtil.encode(content, null, destPath, needCompress);
} else { return GeneralQrcodeUtil.encodeToBase64(content, null, destPath, needCompress);
}
}
* 生成二维码
*
* @param content 内容
* @param destPath 存储地址
* @throws Exception
*/
public static void encode(String content, String destPath) throws Exception { GeneralQrcodeUtil.encode(content, null, destPath, false);
}
* 生成二维码(内嵌LOGO)
*
* @param content 内容
* @param imgPath LOGO地址
* @param output 输出流
* @param needCompress 是否压缩LOGO
* @throws Exception
*/
public static void encode(String content, String imgPath, OutputStream output, boolean needCompress) throws Exception { BufferedImage image = GeneralQrcodeUtil.createImage(content, imgPath, needCompress);
ImageIO.write(image, FORMAT_NAME, output);
}
* 生成二维码
*
* @param content 内容
* @param output 输出流
* @throws Exception
*/
public static void encode(String content, OutputStream output) throws Exception { GeneralQrcodeUtil.encode(content, null, output, false);
}
* 解析二维码
*
* @param file 二维码图片
* @return
* @throws Exception
*/
public static String decode(File file) throws Exception { BufferedImage image;
image = ImageIO.read(file);
if (image == null) { return null;
}
BufferedImageLuminanceSource source = new BufferedImageLuminanceSource(image);
BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
Result result;
Hashtable<DecodeHintType, Object> hints = new Hashtable<DecodeHintType, Object>();
hints.put(DecodeHintType.CHARACTER_SET, CHARSET);
result = new MultiFormatReader().decode(bitmap, hints);
String resultStr = result.getText();
return resultStr;
}
* 解析二维码
*
* @param path 二维码图片地址
* @return
* @throws Exception
*/
public static String decode(String path) throws Exception { return GeneralQrcodeUtil.decode(new File(path));
}
public static void main(String[] args) throws Exception { String text = "http://wsjf.gdgpo.gov.cn/GdOnlinePay/QrCodeHandle/nontaxQrCode.do?reqData=441800|441800180|44180022101000011671|20.00|01965|35382&expireDate=1666859811000&checkCode=6CDBD202B489D09D6A5FA7B7DB240ADA";
System.out.println(GeneralQrcodeUtil.encode(text, null, true));
}
}
