我现在已经很好地工作了。这是代码。
在我的xhtml文档中，我有：
<div />
（我使用的是
div元素，而不是
img因为工厂仅用于块级元素）
我使用以下方法渲染文档：
ITextRenderer renderer = new ITextRenderer();renderer.getSharedContext().setReplacedElementFactory(new ProfileImageReplacedElementFactory(renderer.getSharedContext().getReplacedElementFactory()));renderer.setdocumentFromString(xhtmldocumentAsString);renderer.layout();os = response.getOutputStream();renderer.createPDF(os);
我有我自己
ReplacedElementFactory的如下：
public class ProfileImageReplacedElementFactory implements ReplacedElementFactory { private final ReplacedElementFactory superFactory; public ProfileImageReplacedElementFactory(ReplacedElementFactory superFactory) { this.superFactory = superFactory; } @Override public ReplacedElement createReplacedElement(LayoutContext layoutContext, BlockBox blockBox, UserAgentCallback userAgentCallback, int cssWidth, int cssHeight) { Element element = blockBox.getElement(); if (element == null) { return null; } String nodeName = element.getNodeName(); String className = element.getAttribute("class"); if ("div".equals(nodeName) && className.contains("profile_picture")) { InputStream input = null; try { input = ...; byte[] bytes = IOUtils.toByteArray(input); Image image = Image.getInstance(bytes); FSImage fsImage = new ITextFSImage(image); if (fsImage != null) { if ((cssWidth != -1) || (cssHeight != -1)) { fsImage.scale(cssWidth, cssHeight); } return new ITextImageElement(fsImage); } } catch (IOException e) { getLogger().error(ExceptionUtils.getStackTrace(e)); } catch (BadElementException e) { getLogger().error(ExceptionUtils.getStackTrace(e)); } finally { IOUtils.closeQuietly(input); } } return superFactory.createReplacedElement(layoutContext, blockBox, userAgentCallback, cssWidth, cssHeight); } @Override public void reset() { superFactory.reset(); } @Override public void remove(Element e) { superFactory.remove(e); } @Override public void setFormSubmissionListener(FormSubmissionListener listener) { superFactory.setFormSubmissionListener(listener); }}
