[您好,我正在尝试使用itextpdf创建PDF。在本地测试时,它工作正常。但是在aws部署之后,我收到406 Not not accept with java.io.IOException:该文档没有页面专有内容。
有很多答案,但与部署问题无关。我是否需要检查任何网络配置或pdf生成代码中存在的问题?
以下是我的代码实现:请提出一些解决方案。
public byte[] createPdf(List<Participant> participantList) throws IOException,
DocumentException, com.google.zxing.WriterException {
Document document = new Document();
ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
PdfWriter.getInstance(document, byteArrayOutputStream);
document.open();
document.add(createMainTable(participantList));
document.close();
return byteArrayOutputStream.toByteArray();
}
public static PdfPTable createMainTable(List<Participant> optionalParticipant) throws BadElementException,
IOException, com.google.zxing.WriterException {
PdfPTable table = new PdfPTable(2);
logger.info("Main Table was created");
for (int i = 0; i < optionalParticipant.size(); i++) {
PdfPCell cell1 = new PdfPCell();
cell1.setBorderWidth(0);
cell1.setPadding(10f);
cell1.addElement(createSubTable(optionalParticipant.get(i)));
table.addCell(cell1);
}
return table;
}
public static PdfPTable createSubTable(Participant participant) throws BadElementException,
IOException, com.google.zxing.WriterException {
BaseColor baseColor = new BaseColor(150, 150, 150);
PdfPTable table = new PdfPTable(2);
table.setWidthPercentage(100);
PdfPCell cell, cell1, cell2;
Font font = new Font();
font.setSize(10f);
font.setColor(BaseColor.WHITE);
String participantName = participant.getFirstName() + " " + participant.getLastName();
Chunk chunk = new Chunk(participantName, font);
Paragraph head = new Paragraph(" "+chunk);
head.setFont(font);
cell = new PdfPCell(head);
cell.setColspan(2);
cell.setBackgroundColor(baseColor);
cell.setPadding(2f);
table.addCell(cell);
String qrData = participant.getQrCodeData();
Image img = getQRCodeImage(qrData);
font = new Font();
font.setSize(5f);
chunk = new Chunk("\n" + "Event ID: " + participant.getEvent().getEventId() +
"\n\n" + "Unique ID: " + participant.getUniqueId() +
"\n\n" + "Email ID: " + participant.getEmail(), font);
Paragraph body = new Paragraph(chunk);
cell1 = new PdfPCell(body);
cell1.setBorderWidthRight(0);
cell1.setPadding(10f);
cell2 = new PdfPCell();
cell2.addElement(img);
cell2.setBorderWidthLeft(1);
cell2.setPadding(10f);
table.addCell(cell1);
table.addCell(cell2);
logger.info("Sub Table was created");
return table;
}
请检查partnerList不为空,并且包含元素。您可以使用记录仪在开始使用之前打印列表的大小。
logger.info("No of participants: "+participantList.size());
此外,打开文档后,请始终在文档中立即添加一个空块,以免发生此异常。
document.open();
document.add(new Chunk(""));