Using IFRAME in JSF to display a PDF file

2 all,
How do i display a PDF file inside a JSF page in a IFRAME tag?
I store the PDF file location (like d:\images\pdf1.pdf) in my database. I cant give this location directly into the src attribute cos then the file will be rendered to only users who have access to that folder (the application is a internet application). IFRAME would be ideal as the display is very very neat (esp for pdf files).
To get this working i tried the examples given in balusc blogs (on image servlet) but the problem is that my servlet is not getting called. Find below the web.xml and imageDisplay.jsp pages that i tried
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<display-name>WorkFlowTool</display-name>
<context-param>
<param-name>javax.faces.STATE_SAVING_METHOD</param-name>
<param-value>server</param-value>
</context-param>
<filter>
<filter-name>MyFacesExtensionsFilter</filter-name>
<filter-class>org.apache.myfaces.webapp.filter.ExtensionsFilter</filter-class>
<init-param>
   <param-name>maxFileSize</param-name>
   <param-value>20m</param-value>
</init-param>
</filter>
<filter>
<display-name>SecurityCheckFilter</display-name>
<filter-name>SecurityCheckFilter</filter-name>
<filter-class>filters.SecurityCheckFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>MyFacesExtensionsFilter</filter-name>
<url-pattern>/faces/*</url-pattern>
</filter-mapping>
<filter-mapping>
<filter-name>MyFacesExtensionsFilter</filter-name>
<url-pattern>*.faces</url-pattern>
</filter-mapping>
<filter-mapping>
<filter-name>MyFacesExtensionsFilter</filter-name>
<url-pattern>*.jsf</url-pattern>
</filter-mapping>
<filter-mapping>
<filter-name>SecurityCheckFilter</filter-name>
<url-pattern>/faces/*</url-pattern>
</filter-mapping>
<listener>
<listener-class>com.sun.faces.config.ConfigureListener</listener-class>
</listener>
<servlet>
<servlet-name>Faces Servlet</servlet-name>
<servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet>
<servlet-name>Image Servlet</servlet-name>
<servlet-class>servlets.ImageServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>Image Servlet</servlet-name>
<url-pattern>/imageServlet/*</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>Faces Servlet</servlet-name>
<url-pattern>/faces/*</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>Faces Servlet</servlet-name>
<url-pattern>*.faces</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>Faces Servlet</servlet-name>
<url-pattern>*.jsf</url-pattern>
</servlet-mapping>
<session-config>
<session-timeout>60</session-timeout>
</session-config>
<welcome-file-list>
<welcome-file>/jsp/index.jsp</welcome-file>
</welcome-file-list>
<error-page>
<error-code>500</error-code>
<location>/jsp/error.jsp</location>
</error-page>
<resource-ref>
<res-ref-name>jdbc/JDDS</res-ref-name>
<res-type>java.lang.Object</res-type>
<res-auth>Container</res-auth>
<res-sharing-scope>Shareable</res-sharing-scope>
</resource-ref>
</web-app>
imageDisplay.jsp
<HTML>
<HEAD>
<%@ taglib uri="http://java.sun.com/jsf/core" prefix="f"%>
<%@ taglib uri="http://java.sun.com/jsf/html" prefix="h"%>
<%@ taglib uri='http://java.sun.com/jsp/jstl/core' prefix='c'%>
<f:loadBundle basename="messages" var="msg" />
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<LINK rel="stylesheet" type="text/css" href="../theme/Styles.css"
     title="Style">
</HEAD>
<body topmargin="0" leftmargin="0">
<f:view>
     <h:form id="CaseLookUp">
          <h:dataTable value="#{pc_ImageDisplay.dataModel}" var="var">
               <h:column id="one">
                    <f:facet name="header">
                         <h:outputText value="H1" id="HOne"/>
                    </f:facet>
                    <h:outputText value="#{var.caseID}" id="IDONE"/>
               </h:column>
               <h:column id="two">
                    <f:facet name="header">
                         <h:outputText value="H2" id="HTwo"/>
                    </f:facet>
                    <h:graphicImage value="imageServlet?file=#{var.PODocPath}" id="image"/>
               </h:column>
          </h:dataTable>
     </h:form>
</f:view>
</body>
</HTML>The image servlet is what i got from balusc's site (http://balusc.blogspot.com/2007/04/imageservlet.html).
I dont know why my servlet is not getting called. Can someone help me with this pls?
okay let me post the modified code for my image servlet here
public class ImageServlet extends HttpServlet {
     private static final long serialVersionUID = 1L;
     public void doGet(HttpServletRequest request, HttpServletResponse response) {
        // Define base path somehow. You can define it as init-param of the servlet.
//        String imageFilePath = "/images";
        // In a Windows environment with the Applicationserver running on the
        // c: volume, the above path is exactly the same as "c:\images".
        // In UNIX, it is just straightforward "/images".
        // If you have stored images in the WebContent of a WAR, for example in the
        // "/WEB-INF/images" folder, then you can retrieve the absolute path by:
        // String imageFilePath = getServletContext().getRealPath("/WEB-INF/images");
        // Get file name from request.
        String imageFileName = request.getParameter("file");
        System.out.println("Inside the image servlet ---->>>> " + imageFileName);
        // Check if file name is supplied to the request.
//        if (imageFileName != null) {
//            // Strip "../" and "..\" (avoid directory sniffing by hackers!).
//            imageFileName = imageFileName.replaceAll("\\.+(\\\\|/)", "");
//        } else {
//            // Do your thing if the file name is not supplied to the request.
//            // Throw an exception, or show default/warning image, or just ignore it.
//            return;
        // Prepare file object.
        File imageFile = new File(imageFileName);
        // Check if file actually exists in filesystem.
        if (!imageFile.exists()) {
            // Do your thing if the file appears to be non-existing.
            // Throw an exception, or show default/warning image, or just ignore it.
            return;
        // Get content type by filename.
        String contentType = URLConnection.guessContentTypeFromName(imageFileName);
        // Check if file is actually an image (avoid download of other files by hackers!).
        // For all content types, see: http://www.w3schools.com/media/media_mimeref.asp
        if (contentType == null || !contentType.startsWith("image")) {
            // Do your thing if the file appears not being a real image.
            // Throw an exception, or show default/warning image, or just ignore it.
            return;
        // Prepare streams.
        BufferedInputStream input = null;
        BufferedOutputStream output = null;
        try {
            // Open image file.
            input = new BufferedInputStream(new FileInputStream(imageFile));
            int contentLength = input.available();
            // Init servlet response.
            response.reset();
            response.setContentLength(contentLength);
            response.setContentType(contentType);
            response.setHeader(
                "Content-disposition", "inline; filename=\"" + imageFileName + "\"");
            output = new BufferedOutputStream(response.getOutputStream());
            // Write file contents to response.
            while (contentLength-- > 0) {
                output.write(input.read());
            // Finalize task.
            output.flush();
        } catch (IOException e) {
            // Something went wrong?
            e.printStackTrace();
        } finally {
            // Gently close streams.
            if (input != null) {
                try {
                    input.close();
                } catch (IOException e) {
                    e.printStackTrace();
                    // This is a serious error. Do more than just printing a trace.
            if (output != null) {
                try {
                    output.close();
                } catch (IOException e) {
                    e.printStackTrace();
                    // This is a serious error. Do more than just printing a trace.
    }

Thanks Balusc!!
I have made use of your code to display PDF files in an IFRAME tag too!!! I just dint believe that this would be possible. Please just take a look at my JSP page.
<h:form id="CaseLookUp">
     <%
     String path = request.getContextPath()+"";
     out.print(path);
     %>
<iframe scrolling="auto" src="<%=path%>/imageServlet?file=D:\70-229 V5.pdf" width="80%" height="600" ></iframe>
     </h:form>

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Relatively slow display of pdf files?

Hi:
I've got an Oracle Text application that indexes and queries various file types fine, but the actual display of pdf files is pretty slow. On a 2.4GHz P4 w/1G Ram it took about 20 seconds to display it's version of a 2.5M pdf file. It takes < 10 seconds to open the file in Acrobat Reader. I am guessing it's a translation process from pdf to HTML, but is there anyting (db setting?) that I can do to speed this up? I'd hate to think how long a 10-40M pdf file would take!
Thanks.

Hi:
I've got an Oracle Text application that indexes and queries various file types fine, but the actual display of pdf files is pretty slow. On a 2.4GHz P4 w/1G Ram it took about 20 seconds to display it's version of a 2.5M pdf file. It takes < 10 seconds to open the file in Acrobat Reader. I am guessing it's a translation process from pdf to HTML, but is there anyting (db setting?) that I can do to speed this up? I'd hate to think how long a 10-40M pdf file would take!
Thanks.

Hello. Can I still use the forms central to modify my pdf.-files after the software is not supported by adope?

Hello. Can I still use the forms central to modify my pdf.-files after the software is not supported by adope?

Formscentral isn't designed to allow for the modification of PDF files, forms or otherwise. If you have saved forms created in Formscentral as PDF you will continue to be able to modify them in a program like Acrobat. Hope this helps.
Andrew

Display of PDF Files in iFrames

Hi,
I am using iFrames to supplement the original content of my HTML file with additional PDF material and have problems with the display of these iFrames within the CHM file. I am using RoboHelp HTML 10.
Basically I created topics with text and a single iFrame per topic. These iFrames are intended to display handouts that we use for our training courses directly in the help system.
Topic preview display as expected, i.e. with the PDF content actually embeded in the topic as desired. The problem I have is that these topics display differently once the CHM has been generated. On opening the topic, the PDF content displays in a separate Adobe Reader window, while the frame remains empty.
Are there ways to get PDF things displayed as I wish in the iFrames ? Your kind help would be much appreciated.
Thanks and Regards,
Stephane

Hi,
I am using iFrames to supplement the original content of my HTML file with additional PDF material and have problems with the display of these iFrames within the CHM file. I am using RoboHelp HTML 10.
Basically I created topics with text and a single iFrame per topic. These iFrames are intended to display handouts that we use for our training courses directly in the help system.
Topic preview display as expected, i.e. with the PDF content actually embeded in the topic as desired. The problem I have is that these topics display differently once the CHM has been generated. On opening the topic, the PDF content displays in a separate Adobe Reader window, while the frame remains empty.
Are there ways to get PDF things displayed as I wish in the iFrames ? Your kind help would be much appreciated.
Thanks and Regards,
Stephane

Firefox 33 doesn't display a pdf file when using the response object

Firefox 33.0.2 does not display pdf files when using the code below from an asp.net program, which works for previous versions of Firefox, and also works with IE. I'm using the built-in pdf viewer. All of my plugins are disabled.
Dim strPDF As String
strPDF = Session("filname") 'pdf filename
Response.Clear()
Response.ClearHeaders()
Response.Buffer = True
Response.ContentType = "application/pdf"
Response.CacheControl = "Private"
Response.AddHeader("Pragma", "no-cache")
Response.AddHeader("Expires", "0")
Response.AddHeader("Cache-Control", "no-store, no-cache, must-revalidate")
Response.AddHeader("Content-Disposition", "inline; filename=" + strPDF)
Response.WriteFile(strPDF)
Response.Flush()
Response.Close()
Response.Clear()
Response.End()
Session("filname") = ""

Thanks cor-el. You pointed me in the right direction. It appears to me that a reported Firefox 33 bug with the handling of compression (Transfer-Encoding: chunked) is the culprit (https://support.mozilla.org/en-US/questions/1026743). I was able to find a work-around by specifying the file size and buffering. Below is my code, with some code from http://www.codeproject.com/Questions/440054/How-to-Open-any-file-in-new-browser-tab-using-ASP.
Dim strPDF As String
strPDF = Session("filname") 'pdf filename
Dim User As New WebClient()
Dim FileBuffer As [Byte]() = User.DownloadData(strPDF)
If Not (FileBuffer Is Nothing) Then
Response.Clear()
Response.ClearHeaders()
Response.CacheControl = "Private"
Response.AddHeader("Pragma", "no-cache")
Response.AddHeader("Expires", "0")
Response.AddHeader("Cache-Control", "no-store, no-cache, must-revalidate")
Response.ContentType = "application/pdf"
Response.AddHeader("content-length", FileBuffer.Length.ToString())
Response.BinaryWrite(FileBuffer)
Response.Flush()
Response.Close()
Response.Clear()
Response.End()
End If
Session("filname") = ""

Using IFRAME in JSF to display a PDF file

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