How to display pdf file with java code?

Question

Hi All,
i have a jsp pagein that page if i click one icon then my backing bean method will call and that method will create pdf document and write some the content in that file and now i want to display that generated pdf document.
it should look like you have pressed one icon and it displayed pdf file to you to view.
java code below:
FacesContext fc = FacesContext.getCurrentInstance();
ExternalContext ec = fc.getExternalContext();
HttpServletResponse resp = (HttpServletResponse) ec.getResponse();
resp.setHeader("Content-Disposition", "filename=\"" + temppdfFile);
resp.encodeRedirectURL(temppdfFile.getAbsolutePath());
resp.setContentType("application/pdf");
ServletOutputStream out = resp.getOutputStream();
ServletUtils.returnFile(temppdfFile, out);
out.flush();
and above temppdfFile is my generated pdf file.
when i am executing this code, it was opening dialog box for save and cancel for the file, but the name of the file it was showing me the "jsp file name" with no file extention (in wich jsp file i am calling my backing bean method) and type is "Unknown File type" and from is "local host"
it was not showing me open option so i am saving that file then that file saved as a pdffile with tha name of my jsp file and there is nothing in that file(i.e. empty file).
what is the solution for this. there is any wrong in my code.
Please suggest me.
Thanks in advance
Indira

Answer 1

public Object buildBarCodes() throws Exception
File bulkBarcodes = null;
String tempPDFFile = this.makeTempDir();
File tempDir = new File("BulkPDF_Files_Print");
if(!tempDir.exists())
tempDir.mkdir();
bulkBarcodes = File.createTempFile
(tempPDFFile, ".pdf", tempDir);
//bulkBarcodes = new File(tempDir, tempPDFFile+"BulkBarcode"+"."+"pdf");
if(!bulkBarcodes.exists())
bulkBarcodes.createNewFile();
Document document = new Document();
FileOutputStream combinedOutput = new FileOutputStream(bulkBarcodes);
PdfWriter.getInstance(document, combinedOutput);
document.open();
document.add(new Paragraph("\n"));
document.add(new Paragraph("\n"));
Image image = Image.getInstance(bc.generateBarcodeBytes(bc.getBarcode()));
document.add(image);
combinedOutput.flush();
document.close();
combinedOutput.close();
FacesContext facesc = FacesContext.getCurrentInstance();
ExternalContext ec = facesc.getExternalContext();
HttpServletResponse resp = (HttpServletResponse) ec.getResponse();
resp.setHeader("Content-Disposition", "inline: BulkBarcodes.pdf");
resp.encodeRedirectURL(bulkBarcodes.getAbsolutePath());
resp.setContentType("application/pdf");
resp.setBufferSize(10000000);
ServletOutputStream out = resp.getOutputStream();
ServletUtils.returnFile(bulkBarcodes, out);
out.flush();
return "success";
This is my action method which will call when ever i press a button in my jsp page.
This method will create the barcode for the given barcode number and write that barcode image in pdf file
(i saw that pdf file which i have created through my above method, This PDF file opening when i was opening manually and the data init that is also correct means successfully it writes the mage of that barcode)
This method taking the jsp file to open because as earlier i said it was trying to open unknown file type document and i saved that file and opended with editplus and that was the jsp file in which file i am calling my action method I mean to say it was not taking the pdf file which i have created above it was taking the jsp file