On Wed, 8 Nov 2006, Ute Hoffmann wrote:
Hallo,
is there someone around who has solved this problem:
- I use WebPdfReports
- I need to have it use the right header for Download of the generated
pdf-Files for InternetExplorer 6.x, which throws an exception with the
default implementation (under ssl, but I suspect the ssl does not make the
difference).
So I would like to pass my headers via appendToResponse.
If I put it into the page I generate the pdf from under append to response
and a var, which is set to true while the pdf generation takes place, it
seems the header are not set or overwritten.
If I try to use pdfPage.appendToResonse I end up with "no instance available"
in place of the pdf.
Can someone please advice?
There might be a better way, but here's what I use (I don;t specifically
use WebPdfReports, so you'll have to work that out).
private static String ERROR_MSG =
"<html><head><title>Oops</title></head><body><div align=\"center\">There
was an error creating your report. Please try again
later.</div></body></html>";
public WOResponse getResponse() {
WOResponse aResponse;
byte[] pdf;
aResponse = new WOResponse() {
// IE 6 requires that the response be cache-able so that it can
// pass the content to another program. override WO's default
// cache-preventing behaviour here and set headers below.
public void disableClientCaching() {
/* do nothing */;
}
public boolean _isClientCachingEnabled() {
return true;
}
};
pdf = null;
try {
pdf = getReport();
} catch (Exception e) {
System.err.println("Exception generating PDF: " + e);
e.printStackTrace(System.err);
}
if (pdf != null) {
aResponse.setContent(new NSData(pdf));
aResponse.setHeader("application/pdf", "Content-Type");
aResponse.setHeader("attachment; filename=\"rpt-" + (reportNo++) + ".pdf\"",
"Content-Disposition");
aResponse.setHeader("public", "Cache-Control");
aResponse.setHeader("cache", "Pragma");
aResponse.setHeader(Integer.toString(pdf.length), "Content-Length");
aResponse.setHeader("Report PDF", "Content-Description");
} else {
aResponse.setContent(ERROR_MSG);
aResponse.setHeader("text/html", "content-type");
}
return aResponse;
}
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