将 XML 文件呈现为字节 [] 格式的 PDF

Question

我正在使用飞碟/iText将XML文件渲染为PDF文件。我想知道是否有任何方法可以将渲染的PDF文件保存为ByteOutputStream或byte []，而不是将其作为文件保存。我正在使用下面的代码。任何帮助将不胜感激。

byte[] bytes = outputStream.toByteArray();
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = factory.newDocumentBuilder();
Document document1 = builder.parse(new ByteArrayInputStream(bytes));
String outputFile = "generated/pdfOutput/document.pdf";
OutputStream out = new FileOutputStream(outputFile);
ITextRenderer renderer = new ITextRenderer();
renderer.setDocument(document1, null);
renderer.layout();
renderer.createPDF(out);
out.close();

Answer 1

尝试类似的东西。

byte[] bytes = outputStream.toByteArray();
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = factory.newDocumentBuilder();
Document document1 = builder.parse(new ByteArrayInputStream(bytes));
ByteArrayOutputStream baos = new ByteArrayOutputStream();
ITextRenderer renderer = new ITextRenderer();
renderer.setDocument(document1, null);
renderer.layout();
renderer.createPDF(baos);
byte[] byteArray = baos.toByteArray();
baos.close();