Re: WOComponent for Displaying PDF Problem

Mon, 16 Oct 2006 10:01:09 -0700

Hello

May be a problem in yout application.java Class!!

Make sure you don't have an appendToResponse override that set wrong header such as: setHeader("text/html;charset=utf-8", "Content-Type");

If you need to use UTF-8 encoding... use in application.java

    public void appendToResponse(WOResponse r, WOContext c) {
        r.setContentEncoding("UTF-8");
        super.appendToResponse(r,c);
    }

then in your html headers add: <meta http-equiv="content-type" content="text/html;charset=utf-8">
and in your .woo: {"WebObjects Release" = "WebObjects 5.0"; encoding = NSUTF8StringEncoding; }


regards
Amedeo

On 16/ott/06, at 17:47, Jacky Gagnon wrote:

Hi,

On 06-10-16, at 09:06, Carter Wojcik wrote:

Hi Amedeo -

Thanks for the code.  I compared your code to mine and
they are the same.  Now when I go to the output page I
get the following displayed:

%PDF-1.3 %????????? 2 0 obj << /Length 4 0 R /Filter
/FlateDecode >> stream
x??}[?\???;~E?l;<??2???$?=#???"?B?E?v????????8????Y-?U????H
3?D?????e? ??;?N?????uxwx??q??p??7;??6??&4{??K???#_l?\??2ke??[&?
]??!6Hb"<?,6??Si?B???S???q??G?y??w? K??X????j?a5?zgQ[??ML?D??xAK?+b????{.+p????[?:?
bC?|J??x????X???#*+i?&Mr(ld?Y<???????L?b????v??bF?iV?[Z???-5?V7?d????}
?\?? ..........


This is your PDF data.

This is just the first couple of lines.  When viewing
the source of the page it is the same as what is
displayed on the page.  There is no html header
information in the source. Is this ok?


There is no html header in a PDF document.

If you set correctly the content type ("application/pdf"), safari is supposed to open the document with the PDF plug-in.
Try to save the file on your desktop and open it with Preview or Acrobat Reader to see if they recognize the document.

Did you check your run log for error/warning when you call pdfData()?  

Good Luck!




Here is my code for the output page:

_pdfData and _fileName are being set on the previous
page

public class PDFViewer extends WOComponent {

    private NSData _pdfData;
    private String _fileName;

    public PDFViewer(WOContext context) {
        super(context);
    }

    public void setPdfData(NSData newPDFData) {
        _pdfData = newPDFData;
    }

    public NSData pdfData() {
        return _pdfData;
    }

    public void setFileName(String aFileName) {
        _fileName = aFileName;
    }

    public String fileName() {
        return _fileName;
    }

public void appendToResponse(WOResponse aResponse,
WOContext arg1) {
super.appendToResponse(aResponse, arg1);

if (pdfData() != null) {
aResponse.disableClientCaching();
aResponse.removeHeadersForKey("Cache-Control");
aResponse.removeHeadersForKey("pragma");
aResponse.setHeader("application/pdf",
"content-type");
aResponse.setHeader("inline; attachment;
filename=\""+fileName()+"\"", "content-disposition");

aResponse.setHeader(Integer.toString(pdfData().length()),
"content-length");
aResponse.setContent(pdfData());
}
}
}

Thanks for the help.

Carter

--- Amedeo Mantica <[EMAIL PROTECTED]> wrote:

Hi carter

look at this code in pdf output page

data is an NSData condaining the PDF data!!


public void appendToResponse(WOResponse response,
WOContext context)
{
super.appendToResponse(response, context);
if(data!=null) {
response.disableClientCaching();
response.removeHeadersForKey("Cahce-Control");
response.removeHeadersForKey("pragma");


response.setHeader("application/pdf","content-type");
response.setHeader("inline; attachment;
filename=\"generated.pdf 
\"","content-disposition");


response.setHeader(Integer.toString(data.length()),"content-lenght");
response.setContent(data);
}
}




On 13/ott/06, at 15:30, Carter Wojcik wrote:

Hi All -

I have followed Chuck Hill's example for
generating a
PDF in Practical WebObjects Chapter 11 XML and
WebObjects to create a WOComponent to retrieve a
pdf
from my database and display it in Safari. The
problem
I am having is that when the component is
displayed, I
end up with a blank browser page.  But when I view
the
source, I can see that the pdf is there.  My page
consists of only the component to display the pdf.
The component contains the code that Chuck
supplied in
his book (modified to use the database pdf instead
of
the generated pdf).  Are there any additional
bindings/code that need to be added to correctly
display the pdf in Safari?

Thanks for all your help.

Carter

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