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in Technique[技术] by (71.8m points)

html - How do I display a PDF onto a JSF page

I want to display a PDF file onto my JSF page, I have check this how to display a pdf document in jsf page in iFrame, but I dont want to display it on an iframe(since it will generate scroll bar). I just want to display the pdf onto a page like an image and able to give a width and height for it.

EDIT Hi BalusC. I still cant be able to display the pdf inline. Here is my code.

@WebServlet(name = "pdfHandler", urlPatterns = {"/pdfHandler/*"})
public class pdfHandler extends HttpServlet {

    private static final int DEFAULT_BUFFER_SIZE = 10240;

    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {

        String requestedFile = request.getPathInfo();
        File file = new File("/Users/KingdomHeart/Downloads/Test/pdf/" + requestedFile);
        response.reset();
        response.setContentType("application/pdf");
        response.setBufferSize(DEFAULT_BUFFER_SIZE);
        response.setHeader("Content-Length", String.valueOf(file.length()));
        response.setHeader("Content-Disposition", "inline; filename="" + file.getName() + """);
        BufferedInputStream input = null;
        BufferedOutputStream output = null;
        try{
            input = new BufferedInputStream(new FileInputStream(file), DEFAULT_BUFFER_SIZE);
            output = new BufferedOutputStream(response.getOutputStream(), DEFAULT_BUFFER_SIZE);
            byte[] buffer = new byte[DEFAULT_BUFFER_SIZE];
            int length;
            while((length = input.read(buffer)) > 0){
                output.write(buffer, 0, length);
            }
        }finally{
            output.close();
            input.close();
        }
    }
    ...
}

It still prompt me to download the pdf file. The pdf file that get downloaded to my computer is the correct pdf file btw. Can u spot anything wrong?

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by (71.8m points)

There's not really another way (expect from HTML <object> tag which would have the same "problems"), but you can just give the <iframe> a fixed size and disable the scrolling as follows:

<iframe src="foo.pdf" width="600" height="400" scrolling="no"></iframe>

If you also want to hide the (default) border, add frameBorder="0" as well.


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