Apache PDFbox Java 出现无法读取输入文件的错误

Apache PDFbox Java getting error Cant read input file

我正在尝试使用 PDFBox 2.0.1 版向我的 PDF 文件添加徽标。我有以下代码:

public class PDFService {

    public void createPdf() {
        // Create a document and add a page to it
        PDDocument document = new PDDocument();

        PDPage page = new PDPage();

        document.addPage(page);

        // Create a new font object selecting one of the PDF base fonts
        PDFont font = PDType1Font.HELVETICA_BOLD;

        ServletContext servletContext = (ServletContext) FacesContext
                .getCurrentInstance().getExternalContext().getContext();

        try {

            PDImageXObject pdImage = PDImageXObject.createFromFile(
                    servletContext.getRealPath("/resources/images/logo.png"),
                    document);

            PDPageContentStream contentStream = new PDPageContentStream(
                    document, page);

            contentStream.drawImage(pdImage, 20, 20);

            contentStream.beginText();
            contentStream.setFont(font, 12);
            contentStream.endText();

            // Make sure that the content stream is closed:
            contentStream.close();

            // Save the results and ensure that the document is properly closed:
            document.save("Hello World.pdf");
            document.close();

        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

    }

}

我收到错误 javax.imageio.IIOException:无法读取输入文件!在行

PDImageXObject pdImage = PDImageXObject.createFromFile(
                    servletContext.getRealPath("/resources/images/logo.png"),
                    document);

servletContext.getRealPath返回的路径是C:\Users\erickpezoa\Desktop\Multivision\Materials\apps\eclipse Kepler\eclipse\Projects\.metadata\.plugins\org.eclipse.core.resources\Servicios_Exequiales\build\weboutput\resources\images\logo.png

我做错了什么?

如果您使用的是 Maven,并且您的图像文件夹在 Eclipse 中位于 src/main/resources 下,您可以尝试:

PDImageXObject pdImage = PDImageXObject.createFromFile(
                PDFService.class.getResource("/images/logo.png").getPath(),
                document);
如果 src/main/resources 下有另一个名为 resources 的文件夹,则只需要

作为路径 /resources/images/logo.png。或者不使用 Maven,并且您的输出文件夹包含:/resources/images。在那种情况下:

PDImageXObject pdImage = PDImageXObject.createFromFile(
                PDFService.class.getResource("/resources/images/logo.png").getPath(),
                document);

希望对您有所帮助。