Itext PDF with headers and footers plus pages (ii)

New class:

Import java.io.IOException;
Import com.itextpdf.text.Document;
Import com.itextpdf.text.DocumentException;
Import Com.itextpdf.text.pdf.BaseFont;
Import Com.itextpdf.text.pdf.PdfContentByte;
Import Com.itextpdf.text.pdf.PdfPageEventHelper;
Import Com.itextpdf.text.pdf.PdfTemplate;
Import Com.itextpdf.text.pdf.PdfWriter;
/**
* Set the header and bottom information for the printed document
*
* @author
*
*/
public class Headfootinfopdfpageevent extends Pdfpageeventhelper {
Custom Pass Parameters
Public String pdfname;//The name of the warehouse
Public String date;//Date
Public String type;//Dan Number type
Public String code;//Dan
Public Pdftemplate TPL;
Basefont Bfchinese;

Non-parametric construction method
Public Headfootinfopdfpageevent () {
Super ();
}

A method of parametric construction
Public headfootinfopdfpageevent (String pdfname,string date,string type,string Code) {
Super ();
This.pdfname=pdfname;
This.date = date;
This.type=type;
This.code = code;
try {
Bfchinese = Basefont.createfont ("C:/windows/fonts/simsun"). ttc,1 ", Basefont.identity_h, basefont.embedded);
catch (Documentexception e) {
TODO auto-generated Catch block
E.printstacktrace ();
catch (IOException e) {
TODO auto-generated Catch block
E.printstacktrace ();
}
}

public void OnOpenDocument (PDFWriter writer, document document) {
TPL = Writer.getdirectcontent (). Createtemplate (100, 20);
}

Ways to implement headers and footers
public void OnEndPage (PDFWriter writer, document document) {
try {
string[] Riqi = Date.split ("-");
Pdfcontentbyte headandfootpdfcontent = Writer.getdirectcontent ();
Headandfootpdfcontent.savestate ();
Headandfootpdfcontent.begintext ();
Set up Chinese
Headandfootpdfcontent.setfontandsize (Bfchinese, 12);
Document page header information settings
float x = document.top (-20);
float x1 = document.top (-5);
middle of page header information
Headandfootpdfcontent.showtextaligned (Pdfcontentbyte.align_center, Pdfname, (document.right () + document.left ())/2 , x, 0);
Page header information left
Headandfootpdfcontent.showtextaligned (Pdfcontentbyte.align_left, riqi[0] + "year" + riqi[1] + "month" + riqi[2] + "Day",
Document.left () + x1, 0);
middle of page header information
Headandfootpdfcontent.showtextaligned (Pdfcontentbyte.align_center, type+ "library number:" +code+ "",
(Document.right () + document.left ())/2, x1, 0);
Page header information to the right
Headandfootpdfcontent.showtextaligned (pdfcontentbyte.align_right, "unit: Book", Document.right ()--0, X1;
Document footer Information Settings
Float y = document.bottom (-20);
float y1 = document.bottom (-35);
Footer Information Left
Headandfootpdfcontent.showtextaligned (Pdfcontentbyte.align_left, "Head of Transportation Department:", Document.left () +, y, 0);
middle of footer information
Headandfootpdfcontent.showtextaligned (Pdfcontentbyte.align_center, "Librarian:", (Document.right () + document.left ())/2 , y, 0);
Footer information to the right
Headandfootpdfcontent.showtextaligned (Pdfcontentbyte.align_right, "the person who handles:", document.right ()-----0;
Add page numbers
middle of footer information
Headandfootpdfcontent.showtextaligned (Pdfcontentbyte.align_center, "--the first" + Document.getpagenumber (),
(Document.right () + document.left ())/2, y1, 0);
At the end of each page, write "page x" to specify the location of the template
Headandfootpdfcontent.addtemplate (TPL, (document.right () + document.left ())/2 +, y1)//Locate "y page" to change the XY coordinates at specific page debugging
Headandfootpdfcontent.endtext ();
Headandfootpdfcontent.restorestate ();
catch (Exception de) {
De.printstacktrace ();
}
}

public void OnCloseDocument (PDFWriter writer, document document) {
Gets the total number of pages when the document is closed, and the number of pages reserved before the template is written
Tpl.begintext ();
Tpl.setfontandsize (Bfchinese, 12);
Tpl.showtext ("page, total" + integer.tostring (Writer.getpagenumber ()-1) + "page-");
Tpl.endtext ();
Tpl.closepath ();//sanitycheck ();
}
}

The method call is as follows: The following document's Open is written before:

Set the headers and footers for each page of the PDF
Writer.setpageevent (New Headfootinfopdfpageevent ("header name", Stolist.get (0). GetDate ("Stsu_data"). ToString (), "in", Stsu.getstr ("Stsu_code"));