我正在使用java开发一个itext项目。基本上，在我的项目中，我动态地在每个页面上放置2个徽标（每个页面顶部有一个徽标，页面底部有一个地址图像）。但是，当我想在页面上添加一个表时，如果表有这么多行，那么在某个点上，表的行就会出现在addres图像上，但是我希望这些行换行到另一个页面，所以行表格和地址图片不混合。
以下是我想要解释的图片：
http://img801.imageshack.us/img801/8074/tablejj.jpg
感谢您的帮助。
这是我的主要内容：
public static void main（String [] args）{
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
final denem2321 frame = new denem2321();
frame.setVisible(true);
// ///////////////
frame.getMntmNewMenuItem_1().addActionListener(
new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
final Teklif frame1 = new Teklif(list
.getSelectedItem(), contactName
.get(list.getSelectedItem()),
hashMapReferansNameAndUrl);
frame1.setVisible(true);
JOptionPane.showMessageDialog(
frame,
list.getSelectedItem()
+ " firması için bir teklif hazırlayınız");
String imageUrl = "/Users/nofear/workspace/deneme23/pics/a4-ust.png";
String imageUrlAlt = "pics/a4-alt.png";
try {
imageust = Image
.getInstance(imageUrl);
} catch (BadElementException e3) {
// TODO Auto-generated catch block
e3.printStackTrace();
} catch (MalformedURLException e3) {
// TODO Auto-generated catch block
e3.printStackTrace();
} catch (IOException e3) {
// TODO Auto-generated catch block
e3.printStackTrace();
}
try {
imageAlt = Image
.getInstance(imageUrlAlt);
} catch (BadElementException e3) {
// TODO Auto-generated catch block
e3.printStackTrace();
} catch (MalformedURLException e3) {
// TODO Auto-generated catch block
e3.printStackTrace();
} catch (IOException e3) {
// TODO Auto-generated catch block
e3.printStackTrace();
}
imageust.setAbsolutePosition(
0f,
document.getPageSize()
.getHeight()
- imageust
.getHeight()-15
);
imageAlt.setAbsolutePosition(
0f, 0);
System.out
.println("HEIGTG"
+ (document
.getPageSize()
.getHeight() - imageust
.getHeight()));
frame1.getButtonAl().addActionListener(
new ActionListener() {
@Override
public void actionPerformed(
ActionEvent arg0) {
try {
final PdfWriter writer = PdfWriter
.getInstance(
document,
new FileOutputStream(
"output.pdf"));
document.open();
final PdfContentByte cb = writer
.getDirectContent();
writer.setPageEvent(new PdfPageEvent() {
@Override
public void onStartPage(PdfWriter arg0, Document arg1) {
}
@Override
public void onSectionEnd(PdfWriter arg0, Document arg1, float arg2) {
// TODO Auto-generated method stub
}
@Override
public void onSection(PdfWriter arg0, Document arg1, float arg2, int arg3,
Paragraph arg4) {
// TODO Auto-generated method stub
}
@Override
public void onParagraphEnd(PdfWriter arg0, Document arg1, float arg2) {
// TODO Auto-generated method stub
}
@Override
public void onParagraph(PdfWriter arg0, Document arg1, float arg2) {
// TODO Auto-generated method stub
}
@Override
public void onOpenDocument(PdfWriter arg0, Document arg1) {
// TODO Auto-generated method stub
}
@Override
public void onGenericTag(PdfWriter arg0, Document arg1, Rectangle arg2,
String arg3) {
// TODO Auto-generated method stub
}
@Override
public void onEndPage(PdfWriter arg0, Document arg1) {
try {
cb.addImage(imageust);
cb.addImage(imageAlt);
} catch (DocumentException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
@Override
public void onCloseDocument(PdfWriter arg0, Document arg1) {
// TODO Auto-generated method stub
}
@Override
public void onChapterEnd(PdfWriter arg0, Document arg1, float arg2) {
// TODO Auto-generated method stub
}
@Override
public void onChapter(PdfWriter arg0, Document arg1, float arg2,
Paragraph arg3) {
// TODO Auto-generated method stub
}
});
// now draw a line below
// the headline
cb.setLineWidth(1f);
cb.stroke();
// ////////////////////////////////////
try {
bfArial = BaseFont
.createFont(
"C:/Windows/Fonts/arial.ttf",
"Cp1254",
BaseFont.NOT_EMBEDDED);
} catch (DocumentException e1) {
// TODO
// Auto-generated
// catch block
e1.printStackTrace();
} catch (IOException e1) {
// TODO
// Auto-generated
// catch block
e1.printStackTrace();
}
Font baslikFont = new Font(
bfArial, 24,
Font.BOLD);
Font pdfBaslikFont = new Font(
bfArial, 16,
Font.NORMAL);
Font pdfTarihFont = new Font(
bfArial, 12,
Font.NORMAL);
Font altBaslik = new Font(
bfArial, 12,
Font.BOLD);
Font normalWritingFont = new Font(
bfArial, 12,
Font.NORMAL);
final ColumnText ct = new ColumnText(
cb);
Calendar currentDate = Calendar
.getInstance();
SimpleDateFormat formatter = new SimpleDateFormat(
"yyyy/MMM/dd");
String dateNow = formatter
.format(currentDate
.getTime());
Phrase firmaBaslik = new Phrase(frame1.getTextField_teklifHazirlananFirmaAdi().getText(),
baslikFont);
Phrase pdfAltBaslik = new Phrase("WEB SİTESİ TASARIM ve PROGRAMLAMA ANLAŞMASI",pdfBaslikFont);
Phrase tarih = new Phrase(dateNow, pdfTarihFont);
Phrase alanAdlari = new Phrase("Sitenin Yayınlanacağı Alan Adları: ",altBaslik);
Phrase alanAdlarIcerik = new Phrase(frame1.getTextArea_alanAdlari().getText(),normalWritingFont);
Phrase webHosting = new Phrase("\n\nWebhosting & Yayınlama: ",altBaslik);
Phrase weHostingIcerik = new Phrase(frame1.getTextArea_webHosting().getText(),normalWritingFont);
Phrase siteDil = new Phrase("\n\nSitenin Dili: ",altBaslik);
Phrase siteDilIcerik = new Phrase(frame1.getTextArea_dil().getText(),normalWritingFont);
Phrase amac = new Phrase("\n\nAmaç: ",altBaslik);
Phrase amacIcerik = new Phrase(frame1.getTextArea_amac().getText(),normalWritingFont);
Phrase kullilanProgs = new Phrase("\n\nKullanılacak Programlar: ",altBaslik);
Phrase kullanilanProgsIcerik = new Phrase(frame1.getTextArea_kullanilacakProgramlar().getText(),normalWritingFont);
ct.setSimpleColumn(
firmaBaslik,
60,
750, /* width */
document.getPageSize()
.getWidth() - 40,
30,
25,
Element.ALIGN_CENTER);
ct.go();
ct.setSimpleColumn(
pdfAltBaslik,
60,
650, /* width */
document.getPageSize()
.getWidth() - 40,
30,
25,
Element.ALIGN_CENTER);
ct.go();
ct.setSimpleColumn(
tarih,
60,
625, /* width */
document.getPageSize()
.getWidth() - 40,
30,
25,
Element.ALIGN_CENTER);
ct.go();
ct.setSimpleColumn(
alanAdlari ,
60,
550, /* width */
document.getPageSize()
.getWidth() - 40,
30,
25,
Element.ALIGN_LEFT);
ct.setSimpleColumn(
alanAdlarIcerik ,
60,
550, /* width */
document.getPageSize()
.getWidth() - 40,
30,
13,
Element.ALIGN_LEFT);
ct.setSimpleColumn(
webHosting ,
60,
525, /* width */
document.getPageSize()
.getWidth() - 40,
30,
25,
Element.ALIGN_LEFT);
ct.setSimpleColumn(
weHostingIcerik ,
60,
525, /* width */
document.getPageSize()
.getWidth() - 40,
30,
13,
Element.ALIGN_LEFT);
ct.setSimpleColumn(
siteDil ,
60,
525, /* width */
document.getPageSize()
.getWidth() - 40,
30,
13,
Element.ALIGN_LEFT);
ct.setSimpleColumn(
siteDilIcerik ,
60,
525, /* width */
document.getPageSize()
.getWidth() - 40,
30,
13,
Element.ALIGN_LEFT);
ct.setSimpleColumn(
amac ,
60,
525, /* width */
document.getPageSize()
.getWidth() - 40,
30,
13,
Element.ALIGN_LEFT);
ct.setSimpleColumn(
amacIcerik ,
60,
525, /* width */
document.getPageSize()
.getWidth() - 40,
30,
13,
Element.ALIGN_LEFT);
ct.setSimpleColumn(
kullilanProgs ,
60,
525, /* width */
document.getPageSize()
.getWidth() - 40,
30,
13,
Element.ALIGN_LEFT);
ct.setSimpleColumn(
kullanilanProgsIcerik ,
60,
525, /* width */
document.getPageSize()
.getWidth() - 40,
30,
13,
Element.ALIGN_LEFT);
ct.go();
PdfPTable table = new PdfPTable(
2) ;
table.setTotalWidth(document
.getPageSize()
.getWidth() - 5);
table.getDefaultCell()
.setPadding(2);
table.getDefaultCell()
.setBorderWidth(1);
table.getDefaultCell()
.setHorizontalAlignment(
Element.ALIGN_CENTER);
float[] columnWidths = {
10f, 2f, };
try {
table.setWidths(columnWidths);
} catch (DocumentException e) {
// TODO Auto-generated
// catch block
e.printStackTrace();
}
// table.setSpacingBefore(5f);
// Code 2
table.getDefaultCell()
.setGrayFill(0.9f);
table.addCell("WEB TASARIM VE PROGRAMLAMA");
table.addCell("TUTAR");
table.getDefaultCell()
.setBackgroundColor(
new BaseColor(
255,
255,
255));
document.add(table);
document.newPage();
document.add(new Paragraph("Yeni Sayfa"));
} catch (Exception e) {
} finally {
document.close();
}
}
});
}
});
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
答案 0 :(得分：2)
这是一个非问题。当iText不适合当前页面时会自动中断表格，并将剩余部分转发到下一页。
您正在使用页面事件添加页眉和页脚，这没关系，但是：
table对象中添加的内容并不多，但我发现您使用的ColumnText绝对位置似乎没有考虑任何边距。无论如何：你的代码编写得不好。你应该清理它。例如：您定义页面事件的方式是疯狂的。您应该使用PdfPageEventHelper。我很确定除了我之外没有其他人会仔细查看当前状态下的代码。清理它！