QRCodeGenerator.java
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package com.huaheng.common.utils;
import com.google.zxing.BarcodeFormat;
import com.google.zxing.EncodeHintType;
import com.google.zxing.WriterException;
import com.google.zxing.client.j2se.MatrixToImageWriter;
import com.google.zxing.common.BitMatrix;
import com.google.zxing.datamatrix.DataMatrixWriter;
import com.google.zxing.qrcode.QRCodeWriter;
import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
/**
* 生成二维码
* @author Enzo Cotter
* @date 2020/2/21
*/
public class QRCodeGenerator {
public static byte[] getQRCodeImage(String text, int width, int height) throws WriterException, IOException {
QRCodeWriter qrCodeWriter = new QRCodeWriter();
BitMatrix bitMatrix = qrCodeWriter.encode(text, BarcodeFormat.QR_CODE, width, height);
ByteArrayOutputStream pngOutputStream = new ByteArrayOutputStream();
MatrixToImageWriter.writeToStream(bitMatrix, "PNG", pngOutputStream);
byte[] pngData = pngOutputStream.toByteArray();
return pngData;
}
public static byte[] getDataMatrixImage(String text, int width, int height) throws WriterException, IOException {
Map<EncodeHintType,Object> hints = new HashMap<EncodeHintType, Object>();
hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H);
DataMatrixWriter dataMatrixWriter = new DataMatrixWriter();
BitMatrix bitMatrix = dataMatrixWriter.encode(text, BarcodeFormat.DATA_MATRIX, width, height,hints);
ByteArrayOutputStream pngOutputStream = new ByteArrayOutputStream();
MatrixToImageWriter.writeToStream(bitMatrix, "jpg", pngOutputStream);
byte[] pngData = pngOutputStream.toByteArray();
return pngData;
}
}