Itext Creating a PDF file Add header Footer

Originally from: https://www.cnblogs.com/joann/p/5511905.html

I'm just recording all the jar versions, because version conflicts and incompatibilities are a headache, requiring 5 jars altogether,

Where Itextpdf is an upgraded version of Itext, and Itextpdf-5.5.jar the above version of the total number of pages do not need-1, the previous version must-1;

Jfinal.jar can only be used in 2.0 version, with 3.0 of the report version is too high; hope to help people in need

Itextpdf-5.5.13.jar:http://central.maven.org/maven2/com/itextpdf/itextpdf/5.5.13/itextpdf-5.5.13.jar

Freemarker-2.3.23.jar:http://central.maven.org/maven2/org/freemarker/freemarker/2.3.23/freemarker-2.3.23.jar

Jfinal-2.0.jar:http://central.maven.org/maven2/com/jfinal/jfinal/2.0/jfinal-2.0.jar

Xmlworker-5.5.11.jar:http://central.maven.org/maven2/com/itextpdf/tool/xmlworker/5.5.11/xmlworker-5.5.11.jar

Itext-asian-5.2.0.jar:http://central.maven.org/maven2/com/itextpdf/itext-asian/5.2.0/itext-asian-5.2.0.jar

Import Java.io.bytearrayinputstream;import Java.io.fileoutputstream;import Java.io.stringwriter;import Java.nio.charset.charset;import Com.itextpdf.text.document;import Com.itextpdf.text.pagesize;import Com.itextpdf.text.pdf.pdfwriter;import Com.itextpdf.tool.xml.xmlworkerhelper;import Com.jfinal.log.Logger;import Com.jfinal.render.freemarkerrender;import Freemarker.template.template;public class PdfKit {private static final Logg    ER log = Logger.getlogger (Pdfkit.class); /** * Export PDF * * @param templateview-freemarker Template relative path * @param os-output stream * @param required data for model-template * @th        Rows Exception */public static void export (String templateview,object model,string temp) throws Exception {        Log.info ("Generated PDF address:" +temp);        FileOutputStream tempos = new FileOutputStream (temp);        Template template = Freemarkerrender.getconfiguration (). GetTemplate (Templateview);        StringWriter result = new StringWriter ();       Template.process (model, result); String htmldata = result.tostring ();//template variable Document document = new document (PAGESIZE.A4);        PDFWriter writer = pdfwriter.getinstance (document, tempos);        Add watermarks and page numbers pdfbuilder builder = new Pdfbuilder ();        Writer.setpageevent (builder);        Open file Document.open (); HTML file parsing xmlworkerhelper.getinstance (). parsexhtml (writer, document, new Bytearrayinputstream (HTMLD        Ata.getbytes ()), Charset.forname ("UTF-8"));    Close Document.close (); The public static void main (string[] args) throws Exception {//html template path only supports relative path String templateview= "./web/        Itextpdf.html ";        Path to generate PDF supports absolute path and relative path String temp= "./web/pdf/itextpdf.pdf";    Intermediate template corresponding data model can be NULL export (TEMPLATEVIEW,NULL,TEMP); }}

Import Java.io.ioexception;import Com.itextpdf.text.document;import Com.itextpdf.text.documentexception;import Com.itextpdf.text.element;import Com.itextpdf.text.font;import Com.itextpdf.text.image;import Com.itextpdf.text.pagesize;import Com.itextpdf.text.phrase;import Com.itextpdf.text.rectangle;import Com.itextpdf.text.pdf.basefont;import Com.itextpdf.text.pdf.columntext;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 page attached properties * */public class PDFBuilder    Extends Pdfpageeventhelper {/** * header */public String Header = "Itext Test Header";    /** * Document font size, footer header best and text size consistent */public int presentfontsize = 12;    /** * Document page size, preferably passed in front, otherwise the default is A4 paper */public Rectangle pageSize = pagesize.a4;    Template public pdftemplate total;    Base Font Object public basefont bf = null;    Font objects generated using the underlying font, typically used to generate Chinese text public font fontdetail = null; /**     * * Creates a new instance of Pdfreportm1headerfooter no parameter construction method.     * */Public Pdfbuilder () {}/** * * Creates a new instance of Pdfreportm1headerfooter construction method.     * * @param Yemei * Header String * @param presentfontsize * Data body font size * @param pageSize * Page document size, A4,A5,A6 Flip Rectangle Object */Public Pdfbuilder (String yemei, int presentfontsize, Rectangle pa        gesize) {this.header = Yemei;        This.presentfontsize = presentfontsize;    This.pagesize = pageSize;    } public void SetHeader (String header) {This.header = header;    } public void setpresentfontsize (int presentfontsize) {this.presentfontsize = presentfontsize; }/** * * TODO document is open when creating template * * @see com.itextpdf.text.pdf.pdfpageeventhelper#onopendocument (com.itextpdf.  Text.pdf.PdfWriter, * com.itextpdf.text.Document) */public void OnOpenDocument (PDFWriter writer, Document Document) {       Total = Writer.getdirectcontent (). Createtemplate (50, 50);//width and height of the rectangle of the page}/** * * TODO close each page, write the header, write     Into the words ' page total '. * * @see Com.itextpdf.text.pdf.pdfpageeventhelper#onendpage (com.itextpdf.text.pdf.PdfWriter, * com.itextpdf.t Ext.        Document) */public void OnEndPage (PDFWriter writer, document document) {This.addpage (writer, document);    This.addwatermark (writer);  }//Plus paging public void AddPage (PDFWriter writer, document document) {//Set paging header footer font try {if (bf            = = null) {BF = Basefont.createfont ("Stsong-light", "Unigb-ucs2-h", false);            } if (fontdetail = = null) {fontdetail = new font (BF, presentfontsize, font.normal);//Data body font        }} catch (Documentexception e) {e.printstacktrace ();        } catch (IOException e) {e.printstacktrace (); }//1. Write Header columntext.showtextaligned (writer.getdirectcontent(), Element.align_left, New Phrase (header, Fontdetail), Document.left (), document.top () + 20        , 0);        2. Write the first half of page x/Total int pageS = Writer.getpagenumber ();        String foot1 = "First" + pages + "page/Total";        Phrase footer = new Phrase (FOOT1, Fontdetail);         3. Calculate the length of the foot1 in the first half, and then locate the x-axis coordinates of the last part of the ' Y page ', and the font length to be counted = len float len = bf.getwidthpoint (foot1, presentfontsize);        4. Get the current pdfcontentbyte pdfcontentbyte cb = Writer.getdirectcontent (); 5. Write the footer 1,x axis is (right margin+ left margin + R ()-left ()-len)/2.0f//again to offset 20F for human visual experience, otherwise the naked eye looks too biased left//, the y axis is the bottom boundary-20,        Otherwise, the welt overlaps in the data body is not the footer; Notice that the y-axis is added from the bottom up, and the top value is greater than bottom hundreds of.                        Columntext. showtextaligned (CB, Element.align_center,                                Footer, (Document.rightmargin () + document.right () + Document.leftmargin ()-Document.left ()-Len) /2.0F + 20F, Document.bottom ()-20, 0); 6. The template written in Footer 2 (that is, the Y-page of the footer) is added to the document, calculating the template's and Y-axes, x= (the right boundary-left boundary-the Len value of the first half)/2.0f +//len, y-axis and previous consistency, bottom boundary -20 cb.addte  Mplate (Total, (Document.rightmargin () + document.right () + document.leftmargin ()-Document.left ()) /2.0F + 20F, Document.bottom ()-20);        Adjust the location of the stencil display}//Ga Shuiyin public void Addwatermark (PDFWriter writer) {//watermark picture image;            try {image = Image.getinstance ("./web/images/001.jpg");            Pdfcontentbyte content = Writer.getdirectcontentunder ();            Content.begintext (); Start writing watermark for (int k=0;k<5;k++) {for (int j = 0; J <4; J + +) {Image.seta                    Bsoluteposition (150*J,170*K);                Content.addimage (image);        }} content.endtext (); } catch (IOException | Documentexception e) {//TODO auto-Generated catch block E.printstacktrace (); }}/** * TODO Close the document, replace the template, complete the entire header and footer component * * @see COM.ITEXTPDF.TEXT.PDF.PDFPAGEEVENTHELPER#ONCLOSEDOCU ment (com.itextpdf.text.pdf.PdfWriter, * com.itextpdf.text.Document) */public void onclosedocument (Pdfwrit        Er writer, document document) {//7. The final step is to close the document, replacing the template with the actual Y value, so that page X of Y has been created, perfectly compatible with various document size.        Total.begintext (); Total.setfontandsize (BF, presentfontsize);//generated template font, color String foot2 = "" + (Writer.getpagenumber ()) + "page";        Footer content stitching such as 1th page/Total 2 page total.showtext (FOOT2);//Template display content Total.endtext ();    Total.closepath (); }}

　　

Import Com.itextpdf.text.font;import com.itextpdf.tool.xml.xmlworkerfontprovider;/** * Set the PDF content font type, note that the font is consistent with the HTML page font */public class Asianfontprovider extends Xmlworkerfontprovider {    @Override public    Font getfont (Final String FontName, string encoding, float size, final int style) {        string fntname = FontName;        if (Fntname = = null) {            fntname = "FONTS/SIMSUN.TTC";        }        if (size = = 0) {            size = 4;        }        Return Super.getfont (Fntname,encoding,size,style);}    }

　　

Itext Creating a PDF file Add header Footer