PDFBox：如何从PDF打印一系列页面

Question

I sincerely don't know how to approach this. I'm new to this library (PDFBox) and i managed to implemented code (using Java), that prints any selected PDF.

Now i need to allow users specify a range of pages to print, if needed. Here is the part of my code that handles printing...

          try
          {
                    // TODO add your handling code here:
                    PrintService myPrintService = findPrintService(printerCmb.getSelectedItem().toString());
                    PrinterJob job = PrinterJob.getPrinterJob();
                   job.setPageable(doc);

                    job.setPrintService(myPrintService);
                    job.print( );
          }
          catch (PrinterException ex)
          {             
                    Logger.getLogger(PrintDialog.class.getName()).log(Level.SEVERE, null, ex);  

          }

What do i do next?

This is how i created "doc".

    public Pageable doc;  JFileChooser getPDF = new JFileChooser();
          FileFilter filter = new FileNameExtensionFilter("PDF File", "pdf");
          getPDF.setFileFilter(filter);
          getPDF.setDialogTitle("Select a PDF file");
          getPDF.showOpenDialog(getPDF);
          try
          {
                    Connection conn = null;
                    conn = DriverManager.getConnection(urlDist);
                    //SQLiteConnection new2 = new SQLiteConnection(urlDist, filename);
                    File selPdf = getPDF.getSelectedFile();
                    doc = PDDocument.load(selPdf);

                    if (doc != null)
                    {
                              count = doc.getNumberOfPages();
                              noPagestxt.setText(String.valueOf(count ));
                              filename = selPdf.getName();
                              fileNametxt.setText(filename);
                              pagesPrint.setEnabled(true);
                    }
                    // cleaning memory

                    // cleaning memory
          }
          catch (Exception ex)
          {
                    Logger.getLogger(BioProject.class.getName()).log(Level.SEVERE, null, ex);
          }

Answer 1

So, I fixed the issue using user TilmanHausherr 's suggestion. I specified the range using the PageRanges() function Here is the code.

...
 job.setPageable(doc);
 job.setPrintService(myPrintService);
 PrintRequestAttributeSet attr = new HashPrintRequestAttributeSet(); 
 PageRanges pageRng = new PageRanges( lower , upper);
 attr.add(pageRng); 
 job.print(attr);

NOTE: upper and lower are Integer variables gotten from the user.

Answer 2

Below is the code which can be helpful for  printing data from specific pages in the whole PDF file  hope this would solve your issue.

    PDDocument doc = PDDocument.load("Your PDF path");
    PDFTextStripper stripper = new PDFTextStripper();
    stripper.setStartPage( 1 );
    stripper.setEndPage( Integer.MAX_VALUE );
    List<String>  ans= Arrays.asList(changeText.split(",\n"));
    System.out.println(ans);