java Itext：在绝对位置显示段落
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原文地址: http://stackoverflow.com/questions/15988315/
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Itext: Show paragraph at absolute position
提问by MTilsted
Is there a way to position a paragraph absolutely, in a way that also works when a list is added to the paragraph?
有没有办法绝对定位一个段落，在将列表添加到段落时也可以使用的方式？
A google search shows that I should use ColumnText, but I can't get that to work if there is a list in the paragraph. It simply shows the list items next to each other on the same linie. Here is my test program:
谷歌搜索显示我应该使用 ColumnText，但如果段落中有一个列表，我就无法使用它。它只是在同一行中显示彼此相邻的列表项。这是我的测试程序：
PdfWriter writer=PdfWriter.getInstance(document,new FileOutputStream("/tmp/output.pdf"));
document.open();
ColumnText ct = new ColumnText(writer.getDirectContent());
ct.setSimpleColumn(0,0,300,300);
Paragraph p=new Paragraph();
List list=new List();
list.add(new ListItem("First item"));
list.add(new ListItem("second item"));
list.add(new ListItem("third item"));
p.add(list);
ct.addElement(p);
ct.go();
document.close();
writer.close();
回答by Bruno Lowagie
I looked in the changelogs of iText and I discovered that this was fixed in iText 5.2.1, released on March 31st, 2012. That's over a year ago. Please upgrade to the latest version and the problem will disappear.
我查看了 iText 的更新日志，我发现这在 2012 年 3 月 31 日发布的 iText 5.2.1 中得到了修复。那是一年多前的事情了。请升级到最新版本，问题就会消失。
Note that all 5.2.x versions were removed from SourceForge because they contained a bug that occasionally produced PDFs that weren't compliant with ISO-32000-1. Based on the description of your problem, I know that you're using a version of iText that is even older than the 5.2.x series, so you definitely need to upgrade.
请注意，所有 5.2.x 版本都已从 SourceForge 中删除，因为它们包含一个偶尔会生成不符合 ISO-32000-1 的 PDF 的错误。根据您对问题的描述，我知道您使用的 iText 版本比 5.2.x 系列还要旧，因此您肯定需要升级。
回答by kavi temre
A different way to organize you content in PDF file is that you can use PdfPTable . first write list content into the table using loop instruction and then define the position of that PdfPTable in your output pdf file.
在 PDF 文件中组织内容的另一种方法是使用 PdfPTable 。首先使用循环指令将列表内容写入表格，然后定义该 PdfPTable 在输出 pdf 文件中的位置。
回答by Francesco Lo Cascio
You can use this function:
您可以使用此功能：
private void PlaceChunck(String text, int x, int y) {
PdfContentByte cb = writer.DirectContent;
BaseFont bf = BaseFont.CreateFont(BaseFont.HELVETICA, BaseFont.CP1252, BaseFont.NOT_EMBEDDED);
cb.SaveState();
cb.BeginText();
cb.MoveText(x, y);
cb.SetFontAndSize(bf, 12);
cb.ShowText(text);
cb.EndText();
cb.RestoreState();
}
see also: itext positioning text absolutely;
另请参阅：itext 绝对定位文本；
