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  • java框架---->zxing框架的使用

      今天我们就来学习一下zxing的用法,这里只涉及到java se的部分。

    zxing的学习

    如果在java se环境中使用zxing,需要在maven的pom.xml中添加依赖:

    <dependency>
        <groupId>com.google.zxing</groupId>
        <artifactId>javase</artifactId>
        <version>3.3.0</version>
    </dependency>

    一、根据内容生成二维码

    public void encodeNoReturn(String content) {
        try {
            Path path = new File("file/huhx.png").toPath();
            BitMatrix matrix = new MultiFormatWriter().encode(content, BarcodeFormat.QR_CODE, 300, 300);
            MatrixToImageWriter.writeToPath(matrix, "png", path);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    二、根据二维码读取内容

    public static void main(String[] args) {
        File file = new File("file/huhx.jpg");
        BufferedImage bufferedImage = null;
        try {
            bufferedImage = ImageIO.read(file);
        } catch (IOException e) {
            e.printStackTrace();
        }
        LuminanceSource source = new BufferedImageLuminanceSource(bufferedImage);
        BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
        Hashtable<DecodeHintType, String> hints = new Hashtable<DecodeHintType, String>();
        hints.put(DecodeHintType.CHARACTER_SET, "GBK");
        Result result = null;
        try {
            result = new MultiFormatReader().decode(bitmap, hints);
        } catch (NotFoundException e) {
            e.printStackTrace();
        }
        String url = result.getText();
        System.out.println(url);
    }

    友情链接

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  • 原文地址:https://www.cnblogs.com/huhx/p/baseusejavazxing1.html
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