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Posted to user@poi.apache.org by zzzimon <si...@hotmail.com> on 2014/01/30 10:48:27 UTC
Modifying /ppt/presentation.xml part, but nothing happens
Hi, I need to modify the /ppt/presentation.xml part but when I do that using
the part.getOutputStream method nothing happens. Here is my code:
public static void main(final String[] args) throws Exception {
final XMLSlideShow ppt = new XMLSlideShow();
final PackagePart part = ppt.getPackage().getPart(
PackagingURIHelper.createPartName("/ppt/presentation.xml"));
final String content = "<HelloWorld />";
final OutputStream os = part.getOutputStream();
final PrintStream printStream = new PrintStream(os);
printStream.print(content);
printStream.close();
// print slide show to pptx file
final FileOutputStream out = new FileOutputStream("C:/simon/test.pptx");
ppt.write(out);
out.close();
}
What I want the code to do is replace the content with the element
<HelloWorld />. But instead it still has its default content:
<p:presentation ...
What could be wrong?
/kind regards, Simon
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Re: Modifying /ppt/presentation.xml part, but nothing happens
Posted by zzzimon <si...@hotmail.com>.
Hi , thanks for your reply but I'm not sure what you mean. Can you give an
example?
/kind regards Simon
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Re: Modifying /ppt/presentation.xml part, but nothing happens
Posted by Nick Burch <ap...@gagravarr.org>.
On Thu, 30 Jan 2014, zzzimon wrote:
> Hi, I need to modify the /ppt/presentation.xml part but when I do that using
> the part.getOutputStream method nothing happens. Here is my code:
>
> public static void main(final String[] args) throws Exception {
> final XMLSlideShow ppt = new XMLSlideShow();
This creates a new in-memory /ppt/presentation.xml
> final PackagePart part = ppt.getPackage().getPart(
> PackagingURIHelper.createPartName("/ppt/presentation.xml"));
> final String content = "<HelloWorld />";
> final OutputStream os = part.getOutputStream();
> final PrintStream printStream = new PrintStream(os);
> printStream.print(content);
> printStream.close();
This updates the copy in the part, but...
> // print slide show to pptx file
> final FileOutputStream out = new FileOutputStream("C:/simon/test.pptx");
>
> ppt.write(out);
This then overwrites the /ppt/presentation.xml in the package with the one
from the XMLSlideShow
You either need to work with the XMLSlideShow itself to edit the file, or
only open at the OPCPackage level and not XSLF to have full control
yourself
Nick
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