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@ -16,10 +16,8 @@ import javax.imageio.ImageIO;
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import javax.servlet.http.HttpServletResponse; |
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import javax.swing.filechooser.FileSystemView; |
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import java.awt.image.BufferedImage; |
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import java.io.File; |
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import java.io.FileInputStream; |
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import java.io.IOException; |
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import java.io.InputStream; |
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import java.io.*; |
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import java.util.Base64; |
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import java.util.HashMap; |
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import java.util.Map; |
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import java.util.UUID; |
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@ -105,6 +103,40 @@ public class QRCodeUtil {
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return null; |
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} |
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public static String createCodeToBase64(String content) throws IOException { |
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FileInputStream inputFile = null; |
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try { |
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String imgPath = CommonConstant.SYSTEMFILEPATH+"qrCodeImg/"; |
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File codeImgFileSaveDir = new File(imgPath); |
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//1. 使用UUID重新生成文件名，防止文件名称重复造成文件覆盖
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String fileName = UUID.randomUUID() + "." +FileFormat; |
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content = content.trim(); |
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if (codeImgFileSaveDir==null || codeImgFileSaveDir.isFile()) { |
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//二维码图片存在目录为空，默认放在桌面...
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codeImgFileSaveDir = FileSystemView.getFileSystemView().getHomeDirectory(); |
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} |
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if (!codeImgFileSaveDir.exists()) { |
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//二维码图片存在目录不存在，开始创建...
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codeImgFileSaveDir.mkdirs(); |
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} |
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//核心代码-生成二维码
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BufferedImage bufferedImage = getBufferedImage(content); |
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File codeImgFile = new File(codeImgFileSaveDir, fileName); |
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ImageIO.write(bufferedImage, FileFormat, codeImgFile); |
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inputFile = new FileInputStream(codeImgFile); |
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byte[] bytes = new byte[(int) codeImgFile.length()]; |
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inputFile.read(bytes); |
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return Base64.getEncoder().encodeToString(bytes).replaceAll("\r|\n", ""); |
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} catch (Exception e) { |
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e.printStackTrace(); |
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}finally { |
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inputFile.close(); |
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} |
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return null; |
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} |
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/** |
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* 条形码 |
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* @param content |
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@ -183,6 +215,37 @@ public class QRCodeUtil {
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} |
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} |
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return bufferedImage; |
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} |
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public static String getBufferedImageToBase64(String content) throws WriterException, IOException { |
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//com.google.zxing.EncodeHintType：编码提示类型,枚举类型
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Map<EncodeHintType, Object> hints = new HashMap(); |
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//EncodeHintType.CHARACTER_SET：设置字符编码类型
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hints.put(EncodeHintType.CHARACTER_SET, "UTF-8"); |
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//EncodeHintType.ERROR_CORRECTION：设置误差校正
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//ErrorCorrectionLevel：误差校正等级，L = ~7% correction、M = ~15% correction、Q = ~25% correction、H = ~30% correction
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//不设置时，默认为 L 等级，等级不一样，生成的图案不同，但扫描的结果是一样的
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hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.M); |
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//EncodeHintType.MARGIN：设置二维码边距，单位像素，值越小，二维码距离四周越近
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hints.put(EncodeHintType.MARGIN, 0); |
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MultiFormatWriter multiFormatWriter = new MultiFormatWriter(); |
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BitMatrix bitMatrix = multiFormatWriter.encode(content, BarcodeFormat.QR_CODE, CODE_WIDTH, CODE_HEIGHT, hints); |
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BufferedImage bufferedImage = new BufferedImage(CODE_WIDTH, CODE_HEIGHT, BufferedImage.TYPE_INT_BGR); |
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for (int x = 0; x < CODE_WIDTH; x++) { |
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for (int y = 0; y < CODE_HEIGHT; y++) { |
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bufferedImage.setRGB(x, y, bitMatrix.get(x, y) ? FRONT_COLOR : BACKGROUND_COLOR); |
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} |
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} |
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ByteArrayOutputStream bos = new ByteArrayOutputStream(); |
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ImageIO.write(bufferedImage,".png",bos); |
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byte[] byteArray = bos.toByteArray(); |
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return Base64.getEncoder().encodeToString(byteArray); |
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} //核心代码-生成二维码
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public static BufferedImage getBufferedImageMatrix(String content) throws WriterException { |
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