jXLS jx:image 以 java.lang.IllegalArgumentException 结尾：imgBean 值必须包含图像字节

Question

我想用 jXLS 2.2.3 将图像放入 XLS 文件模板

XLS模板定义如下：

单元格 A1，已添加注释： jx:area(lastCell="L10")

单元格 A10，已添加注释： jx:each(items="rows" var="r" lastCell="L10")

单元格D10，添加注释： jx:image(imgBean="r.barcodeJpgImage" imageType="JPEG" lastCell="L10")

当我执行代码时：

        ByteArrayOutputStream fos = new ByteArrayOutputStream();
        //fis is template file input stream, fos is the output
        Transformer transformer = TransformerFactory.createTransformer(fis, fos);
        AreaBuilder areaBuilder = new XlsCommentAreaBuilder(transformer);
        List<Area> xlsAreaList = areaBuilder.build();
        Area xlsArea = xlsAreaList.get(0);
        Context context = new Context();
        for (Map.Entry<String, Object> entry : beans.entrySet()) {
            context.putVar(entry.getKey(), entry.getValue());
        }
        xlsArea.applyAt(new CellRef(0,0), context);
        transformer.write();

我得到这个异常：

Caused by: java.lang.IllegalArgumentException: imgBean value must contain image bytes (byte[]) at org.jxls.command.ImageCommand.applyAt(ImageCommand.java:76) at org.jxls.area.XlsArea.applyAt(XlsArea.java:142) at org.jxls.command.EachCommand.applyAt(EachCommand.java:177) at org.jxls.area.XlsArea.applyAt(XlsArea.java:142)

变量 r.barcodeJpgImage 不为空且包含 JPEG 图像字节。

知道哪里出了问题吗？！

Answer 1

升级到 jxls-2.2.5 或更高版本
像这样指定Image-command

jx:image(src="r.barcodeJpgImage" imageType="JPEG" lastCell="L10")

jXLS jx:image 以 java.lang.IllegalArgumentException 结尾：imgBean 值必须包含图像字节

jXLS jx:image ends with java.lang.IllegalArgumentException: imgBean value must contain image bytes

java

excel

image-processing

jxls