org.krysalis.barcode4j.BarcodeException：找不到条形码配置元素

Question

I want to generate a barcode in svg from a barcode xml. I have followed this: http://barcode4j.sourceforge.net/2.1/barcode-xml.html

The input should be a configuration object created out of an xml file. The "cfgFile"[barcode.xml] file is of the following format:

<bc:barcode xmlns:bc="http://barcode4j.krysalis.org/ns" orientation="0" message="123456789">
    <bc:code39>
            <bc:height>15mm</bc:height>
            <bc:module-width>0.19mm</bc:module-width>
            <bc:wide-factor>2.5</bc:wide-factor>
    </bc:code39>
</bc:barcode>

When I try to send this as input to Barcode 4j:

DefaultConfigurationBuilder builder = new 
DefaultConfigurationBuilder();
File cfgFile = new File("barcode.xml");
Configuration cfgnew = builder.buildFromFile(cfgFile);
DocumentFragment frag = 
BarcodeUtil.getInstance().generateSVGBarcode(cfgnew, "123456789");

I get the following error:

Caused by: org.krysalis.barcode4j.BarcodeException: No barcode configuration element not found
at org.krysalis.barcode4j.BarcodeUtil.createBarcodeGenerator(Unknown Source) ~[Barcode4J-2.1.jar:?]
at org.krysalis.barcode4j.BarcodeUtil.createBarcodeGenerator(Unknown Source) ~[Barcode4J-2.1.jar:?]
at org.krysalis.barcode4j.BarcodeUtil.generateSVGBarcode(Unknown Source) ~[Barcode4J-2.1.jar:?

When I print a logger for cfgnew, I get this: bc:barcode:::@file

Answer 1

I was calling the wrong function to generate the barcode in SVG. Instead of BarcodeUtil.getInstance().generateSVGBarcode(cfgnew, "123456789");

Use this: bargen.generateBarcode(canvas, msg);

where bargen is the instance for a particular barcode configuration.