java ee - Exception Reason while reading pdf in jsp -

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i have wrote jsp servlet read pdf using itextpdf , end exception can tell me reason exception

page.jsp

<html> <%@page import="java.io.file"%> <%@page import="java.io.*"%> <%@page import="javax.servlet.*"%> <%@page import="com.itextpdf.text.image"%> <%@page import="com.itextpdf.text.document"%> <%@page import="com.itextpdf.text.documentexception"%> <%@page import="com.itextpdf.text.pdf.pdfreader"%> <%@page import="com.itextpdf.text.pdf.pdfimportedpage"%> <%@page import="com.itextpdf.text.pdf.pdfwriter"%> <%@page import="com.itextpdf.text.pdf.pdfcontentbyte"%> <%     response.reset();     response.setcontenttype("application/pdf");     response.setheader("content-disposition",             "inline;filename=saba_phbill.pdf");     file file = new file(             "d:\\tnwrd_documents\\knowladge_base\\chapter_i.pdf");     string outputfile = "d:\\tnwrd_documents\\chapter_ii.pdf";     fileinputstream in = new fileinputstream(file);     pdfreader reader = new pdfreader(in);     document document = new document();     //pdfwriter writer = pdfwriter.getinstance(document,     //        new fileoutputstream(outputfile));     outputstream outputstream = new fileoutputstream(outputfile);     pdfwriter writer = pdfwriter.getinstance(document, outputstream);     document.open();     //pdfreader reader = new pdfreader(inputfile);     pdfcontentbyte cb = writer.getdirectcontent();     int n = reader.getnumberofpages();     pdfimportedpage pages;     // go through pages     (int = 1; <= n; i++) {         // page number 2 included         pages = writer.getimportedpage(reader, i);         image instance = image.getinstance(pages);         document.add(instance);         cb.addtemplate(pages, 0, 0);         document.addheader("pdf", "pdf");     }     document.close(); %> </html>

well, won't able display pdf in browser if enclose pdf file between <html> , </html> tags. that's illegal syntax.

furthermore, you're writing pdf fileoutputstream. that's... odd. need send pdf bytes servletoutputstream.

this simple hello world servlet: hello. see outputstream used when creating pdfwriter instance? response.getoutputstream() servletoutputstream instance.

of course, while works browsers, you'll encounter problems legacy browser versions. that's why there's example: pdfservlet

finally, you're jsp developer, remember jsp courses creating binary files jsp bad idea. developers write servlet create binary documents.


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