Brown, James wrote:
We are having a problem streaming a PDF to Internet Explorer over HTTPS. I have located a number of postings (namely http://support.microsoft.com/default.aspx?scid=kb;en-us;316431) that denote this as a known feature/bug in IE; however, we can't seem to get the solution correct.
As we would like all of the application to be non-cacheable, we have set the following in the struts-config.xml <controller> <!-- Set pages as no-cache --> <set-property property="nocache" value="true"/> </controller> Which works as expected.
In the Action class we attempt to override the nocache via: response.setHeader("Cache-control", "");
This does not appear to have the effect of overriding the controller setting.
Any thoughts?
Cheers, James Below is a larger snippet from the Action.execute(...) method.
public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException { HttpSession sess = request.getSession();
String report = "XYZ.pdf"; // stream the PDF data to the browser if (report != null) { javax.servlet.ServletOutputStream sos = response.getOutputStream(); try { response.setContentType(PDF_MIME_TYPE); // as per http://support.microsoft.com/default.aspx?scid=kb;en-us;316431 // Internet Explorer will not be able to display the PDF in SSL unless // the page is set to be cacheable response.setHeader("Cache-control", ""); File reportFile = new File(report); FileInputStream fis = new FileInputStream(reportFile); byte[] fisBytes = new byte[(int) reportFile.length()];
fis.read(fisBytes);
response.setContentLength(fisBytes.length);
sos.write(fisBytes);
sos.flush();
sos.close();
} catch (Exception e) {
ActionErrors errors = new ActionErrors();
errors.add(ActionErrors.GLOBAL_ERROR,
new ActionError(Constants.ERROR_KEY_HDR + Constants.LC_ERROR_HDR + "5001"));
saveErrors(request, errors);
} finally {
sos.close();
response.reset();
}
}
. . .
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