如何使用coldfusion读取摄像头中的条形码？

<cfscript>
    // 导入所需的Java类
    import com.google.zxing.BarcodeFormat;
    import com.google.zxing.BinaryBitmap;
    import com.google.zxing.MultiFormatReader;
    import com.google.zxing.Result;
    import com.google.zxing.client.j2se.BufferedImageLuminanceSource;
    import com.google.zxing.common.HybridBinarizer;
    import javax.imageio.ImageIO;
    import java.io.File;
    import java.awt.image.BufferedImage;

    // 摄像头截图保存的文件路径
    var imagePath = "path/to/saved/image.jpg";

    // 调用摄像头并保存截图
    var camera = createObject("java", "javax.imageio.ImageIO");
    var image = camera.read(camera.getSystemCamera());
    ImageIO.write(image, "jpg", createObject("java", "java.io.File").init(imagePath));

    // 读取保存的截图并解码条形码
    var file = createObject("java", "java.io.File").init(imagePath);
    var bufferedImage = ImageIO.read(file);
    var luminanceSource = createObject("java", "com.google.zxing.client.j2se.BufferedImageLuminanceSource").init(bufferedImage);
    var binaryBitmap = createObject("java", "com.google.zxing.BinaryBitmap").init(createObject("java", "com.google.zxing.common.HybridBinarizer").init(luminanceSource));
    var result = createObject("java", "com.google.zxing.MultiFormatReader").decode(binaryBitmap);

    // 输出解码结果
    writeOutput("条形码内容：" & result.getText());
</cfscript>