My writer writes binaries to output stream.
Stmt is an Oracle BFILE, response is HttpServletResponse, length doesn't
matter.
InputStream in = null ;
BufferedInputStream bis = null ;
ServletOutputStream writer = null ;
try
{
stmt.openFile() ;
in = stmt.getBinaryStream() ;
bis = new BufferedInputStream(in) ;
int length ;
byte[] buf = new byte[512] ;
writer = response.getOutputStream() ;
response.setContentType("application/pdf") ;
while ((length=bis.read(buf))!= -1)
{
writer.write(buf) ;
}
}
finally
{
if (writer != null)
writer.close() ;
if (in != null)
in.close() ;
if (bis != null)
bis.close() ;
if (stmt != null)
stmt.closeFile() ;
}
}
In my Action class, I return null.
It works perfectly if Adobe Acrobat Reader is installed.
Regards,
PQ
"This Guy Thinks He Knows Everything"
"This Guy Thinks He Knows What He Is Doing"
-----Original Message-----
From: Marcus Biel [mailto:[EMAIL PROTECTED]]
Sent: January 16, 2003 7:37 AM
To: [EMAIL PROTECTED]
Subject: Re: Action without forward ?
> I don't understand why you cannot directly use the PDF-generator servlet,
by
> adding a dedicated mapping in your web.xml.
It needs to go through the request processor, to check if the user is
logged in
or not.
> perform() method in any action MAY return an ActionForward, but CAN return
> null if it has build the response for the client browser. This is commonly
> used for PDF or Excel generation, where they're is no need for a JSP.
It writes the binary value(pdf) into the response.getOutputStream,
with content-Type "application/pdf" und with content-length set.
But in the browser nothing can be seen, even though the pdf that gets
created correctly,
and the browser is loading the pdf-plugin.
Any ideas ?
marcus
[EMAIL PROTECTED] schrieb:
>
> perform() method in any action MAY return an ActionForward, but CAN return
> null if it has build the response for the client browser. This is commonly
> used for PDF or Excel generation, where they're is no need for a JSP.
>
> I don't understand why you cannot directly use the PDF-generator servlet,
by
> adding a dedicated mapping in your web.xml.
>
> Nico.
>
> > Hi, I am using Struts 1.02 and got the following Problem:
> > I need to create a JSP where u can select to create a pdf or excel file.
> >
> > The problem is, I didn't programm the Action to create the file, a
> > colleague did.
> > So I need some way to call his Servlet. I tried to map directly to it,
> > that did not work. So I wrote an Action that called a method to create
> > this pdf / excel file,
> > depending on the parameters given.
> >
> > The problem is, that after this method there is no forward anymore, as
> > the control is given to the servlet
> > to create the file, and thats it. But the
> > public ActionForward perform(
> > ActionMapping mapping,
> > ActionForm form,
> > HttpServletRequest request,
> > HttpServletResponse response)
> > {
> >
> > needs some forward.
> > For the moment I wrote "return null" but imho thats no prober solution.
> >
> > Maybe you got an idea.
> >
> >
> > thanks,
> >
> > marcus
>
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