Java MatrixToImageWriter.writeToFile方法代码示例

import com.google.zxing.client.j2se.MatrixToImageWriter; //导入方法依赖的package包/类
/**
 * 二维码编码
 * 
 * @param contents
 * @param width
 * @param height
 * @param imgPath
 */
public static void encode2(String contents, int width, int height, String imgPath) {
	Hashtable<EncodeHintType, Object> hints = new Hashtable<EncodeHintType, Object>();
	// 指定纠错等级
	hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.L);
	// 指定编码格式
	hints.put(EncodeHintType.CHARACTER_SET, "GBK");
	try {
		BitMatrix bitMatrix = new MultiFormatWriter().encode(contents,
				BarcodeFormat.QR_CODE, width, height, hints);

		MatrixToImageWriter
				.writeToFile(bitMatrix, "png", new File(imgPath));

	} catch (Exception e) {
		e.printStackTrace();
	}
}
 

import com.google.zxing.client.j2se.MatrixToImageWriter; //导入方法依赖的package包/类
public static void barCode(String contents,String imgPath,int width, int height) {
    int codeWidth = 3 + // start guard
            (7 * 6) + // left bars
            5 + // middle guard
            (7 * 6) + // right bars
            3; // end guard
    codeWidth = Math.max(codeWidth, width);
    try {
        BitMatrix bitMatrix = new MultiFormatWriter().encode(contents,BarcodeFormat.CODE_128, codeWidth, height, null);
        bitMatrix = deleteWhite(bitMatrix);
        MatrixToImageWriter.writeToFile(bitMatrix, "png", new File(imgPath));
    }catch (Exception e) {
    	log.error(e.getMessage());
        e.printStackTrace();
    }
}
 

import com.google.zxing.client.j2se.MatrixToImageWriter; //导入方法依赖的package包/类
/**
 * 条形码编码
 * 
 * @param contents
 * @param width
 * @param height
 * @param imgPath
 */
public static void encode(String contents, int width, int height, String imgPath) {
	int codeWidth = 3 + // start guard
			(7 * 6) + // left bars
			5 + // middle guard
			(7 * 6) + // right bars
			3; // end guard
	codeWidth = Math.max(codeWidth, width);
	try {
		BitMatrix bitMatrix = new MultiFormatWriter().encode(contents,
				BarcodeFormat.EAN_13, codeWidth, height, null);

		MatrixToImageWriter
				.writeToFile(bitMatrix, "png", new File(imgPath));

	} catch (Exception e) {
		e.printStackTrace();
	}
}
 

import com.google.zxing.client.j2se.MatrixToImageWriter; //导入方法依赖的package包/类
/**
 *生成二维码图片并保存为文件
 * @param content 文本内容
 * @param output 目标文件
 * @param format 图片格式
 * @param width 宽
 * @param height 高
 * @throws WriterException
 * @throws IOException
 */
public static void genQrCodeToFile(String content, File output, String format, Integer width,
                                   Integer height) throws WriterException, IOException {

    if (width == null) {
        width = QrCodeUtil.width; // 图像宽度
    }
    if (height == null) {
        height = QrCodeUtil.height; // 图像高度
    }
    if (format == null) {
        format = QrCodeUtil.format; //文件格式
    }
    Map<EncodeHintType, Object> hints = new HashMap<EncodeHintType, Object>();
    hints.put(EncodeHintType.CHARACTER_SET, "UTF-8");
    BitMatrix bitMatrix =
        new MultiFormatWriter().encode(content, BarcodeFormat.QR_CODE, width, height, hints); // 生成矩阵
    MatrixToImageWriter.writeToFile(bitMatrix, format, output);
}
 

import com.google.zxing.client.j2se.MatrixToImageWriter; //导入方法依赖的package包/类
public static void qrCode(int width,int height,String content,String suffix,String imgPath){
 	Hashtable<EncodeHintType, String> hints= new Hashtable<EncodeHintType, String>();
 	hints.put(EncodeHintType.CHARACTER_SET, "utf-8");
 	BitMatrix bitMatrix;
 	try {
 		bitMatrix = new MultiFormatWriter().encode(content, BarcodeFormat.QR_CODE, width, height,hints);
 		bitMatrix = deleteWhite(bitMatrix);
File outputFile = new File(imgPath);
 		MatrixToImageWriter.writeToFile(bitMatrix, suffix, outputFile);
 	} catch (Exception e) {
 		e.printStackTrace();
 	}
 }
 

import com.google.zxing.client.j2se.MatrixToImageWriter; //导入方法依赖的package包/类
public static void createQRCode(String qrCodeData, String filePath,
                                String charset, Map hintMap, int qrCodeheight, int qrCodewidth)
        throws WriterException, IOException {
    BitMatrix matrix = new MultiFormatWriter().encode(
            new String(qrCodeData.getBytes(charset), charset),
            BarcodeFormat.QR_CODE, qrCodewidth, qrCodeheight, hintMap);

    Object object = new Object();

    MatrixToImageWriter.writeToFile(matrix, filePath.substring(filePath
            .lastIndexOf('.') + 1), new File(filePath));


}
 

import com.google.zxing.client.j2se.MatrixToImageWriter; //导入方法依赖的package包/类
/**
 * 生成二维码
 * @param content
 * @param storePath
 * @return
 */
@SuppressWarnings("deprecation")
public String createQrCode(String content, String storePath){
	String savePath = null;
	try {
		File tmpFile = File.createTempFile("tmp_", ".png");
		QRCodeWriter writer = new QRCodeWriter();
		BitMatrix matrix = writer.encode(content, BarcodeFormat.QR_CODE, 200, 200);
		MatrixToImageWriter.writeToFile(matrix, "png", tmpFile);
		savePath = fileUtils.uploadFromLocal(tmpFile, storePath);
	} catch (IOException | WriterException e) {
		Exceptions.printException(e);
	}
	return savePath;		
}
 

import com.google.zxing.client.j2se.MatrixToImageWriter; //导入方法依赖的package包/类
@Test
void benchmark() throws WriterException, IOException
{
    QRCodeWriter qrCodeWriter=new QRCodeWriter();
    String url="https://isqrl.allogy.com/scan/8b775f16d8fc58dc8fe38c87f66e55d973e23407/A3k2TjrkimptR.png";
    BarcodeFormat barcodeFormat=BarcodeFormat.QR_CODE;
    int width =150;
    int height=150;
    BitMatrix bitMatrix = qrCodeWriter.encode(url, barcodeFormat, width, height);
    //MatrixToImageWriter.writeToStream(bitMatrix, "PNG", outputStream);
    MatrixToImageWriter.writeToFile(bitMatrix, "PNG", new File("/tmp/qr.png"));
}
 

import com.google.zxing.client.j2se.MatrixToImageWriter; //导入方法依赖的package包/类
/**
 * Generate QRCode.
 * 
 * @param file
 *            file
 * @throws Exception
 */
public void generate(final File file) throws Exception {
    BitMatrix bitMatrix = createBitMatrix();
    MatrixToImageWriter.writeToFile(bitMatrix, imageFormat, file);
}