java - 如何从Web项目内的文件夹(WebContent/images/isilog.gif)获取图像文件URL？

Question

目录结构

MYProjectName
WebContent(Folder)
-Images (Folder)
--isilog.gif

/*下面是我的代码。我已将 WebContent 中的图像作为静态图像。 我想从图像文件夹中动态获取它。 */

public class ABC {
public static final String DEST = "G://HRS Barcode/ISILOGO.pdf";
public static final String IMG = "D://MyFolder Workplace/MYProjectName/WebContent/images/isilog.gif";

public static void main(String[] args) throws IOException,
        DocumentException {
    File file = new File(DEST);
    file.getParentFile().mkdirs();
    new ABC().createPdf(DEST);
}

public void createPdf(String dest) throws IOException, DocumentException {
    OutputStream out = null;
    Document document = new Document();
    Rectangle pageSize = new Rectangle(432, 288);
    document.setPageSize(pageSize);
    document.setMargins(11, 11, 11, 11);
    PdfWriter.getInstance(document, new FileOutputStream(dest));
    Barcode128 code128 = new Barcode128();
    out = new FileOutputStream(DEST);
    out = new BufferedOutputStream(out);
    PdfWriter writer = PdfWriter.getInstance(document, out);

    document.open();

    document.setMarginMirroringTopBottom(true);
    PdfPTable table = new PdfPTable(2);
    table.setWidths(new int[] { 2, 7 });
    Image img = Image.getInstance(IMG);
    PdfPCell cell = new PdfPCell(img, true);
    cell.setPadding(0);
    cell.setBorder(PdfPCell.NO_BORDER);
    cell.setHorizontalAlignment(Element.ALIGN_LEFT); // ALIGN_BASELINE
    cell.setVerticalAlignment(Element.ALIGN_LEFT);
    table.addCell(cell);
    table.addCell("XYZ company Ltd");
    cell.setBorder(PdfPCell.NO_BORDER);
    document.add(table);
    LineSeparator separator = new LineSeparator();
    Chunk linebreak = new Chunk(separator);
    document.add(linebreak);
    document.close();
    System.out.println("Document Generated...!!!!!!");
    writer.close();

}

}

Answer 1

从项目的图像文件夹加载图像的简单方法是使用这个简单的 1 行代码。(相应地尝试您的 URL)

方式一:

File sourceimage = new File("D://MyFolder Workplace/MYProjectName/WebContent/images/isilog.gif");
Image image = ImageIO.read(sourceimage);

方式2:

  BufferedImage img = ImageIO.read(getClass().getResourceAsStream("/images/isilog.jpg"));

如果您想进一步了解，可以随时查看文档。
这是link to Reading/Loading an Image using java