Export PDF files with Itext

First, export the PDF tool class:

 package pdf;import java.io.ByteArrayOutputStream;import java.io.File;import  Java.io.filenotfoundexception;import java.io.fileoutputstream;import java.io.ioexception;import  java.text.SimpleDateFormat;import java.util.Date;import java.util.Iterator;import  java.util.map;import com.itextpdf.text.documentexception;import com.itextpdf.text.pdf.acrofields; import com.itextpdf.text.pdf.basefont;import com.itextpdf.text.pdf.pdfreader;import  com.itextpdf.text.pdf.pdfstamper;/** *  Export PDF Tool class <br> *  export PDF files based on a given PDF template, and replace the input fields in the PDF with the given content  *  @author  wangtl * */public class exportpdfutil {     /**     *      *  Export PDF Tool Class  <br>     *  Export PDF Tool Class      *       *  @param  outpath  Output Path      *  @param  fontPath  font path      *  @param  templatename pdf template file path name      *  @param  content  need to populate content       *  @return     */    public static  string exportpdf (String outpath, string templatename, string fontpath,  map<string, string> content)  {               //  Get current Time         Date  Now = new date ();        simpledateformat  Dataformat = new simpledateformat ("Yyyy-mm-dd-hh-mm-ss");         string t = dataformat.format (now);         / /  get a random number     &nbsP;   string ran = math.random ()  +  "";         //  add a random number to the current time to obtain the downloaded file to ensure that no duplicate name         string  filename = t +  "-"  + ran;                 String savepath = outpath +  file.separator + filename +  ". pdf";         Pdfreader reader = null;        bytearrayoutputstream  bos = null;        pdfstamper ps = null ;        fileoutputstream fos = null;         try {             //  Create Font              basefont chinesesong = basefont.createfont ( fontpath, basefont.identity_h,                     basefont.embedded);             //  Read pdf             reader = new pdfreader (templatename);             bos = new bytearrayoutputstream ();             ps = new pdfstamper (Reader, bos);             acrofields s = ps.getacrofields ();             //  Add the fonts that you created           &Nbsp;  s.addsubstitutionfont (Chinesesong);                         //find the input field in the PDF and replace it with the content             iterator<string> it =  s.getfields (). KeySet (). Iterator ();             while (It.hasnext ()) {             string  name =  (String)  it.next ();                 s.setfield (""  + name.trim (),  content.get (Name.trim ()));             }             //These two steps must have, otherwise PDF generation fails              ps.setformflatTening (True);             ps.close ();             //Output pdf             fos = new fileoutputstream (Savepath);             fos.write (Bos.tobytearray ());         } catch  (filenotfoundexception e)  {          system.out.println ("FileNotFoundException");          e.printstacktrace ();        } catch  (Exception e)  {         system.out.println ("Exception");          e.printstacktrace ();         } finally {            if  (Null != reader)  {                 reader.close () ;            }             try {                 if  (Null != bos)  {                     bos.close ();                 }             } catch  (ioexception e)  {              system.out.println ("failed to  Close bytearrayoutputstream  ");            }             try {                 if  (NULL&NBSP;!=&NBSP;PS)  {                     ps.close ();                 }             } catch  (documentexception e)   {             system.out.println ("failed  to close PdfStamper  ");             } catch  (ioexception e)  {              systeM.out.println ("failed to close pdfstamper ");             }            try  {                if   (Null != fos)  {                     fos.close ();                 }             } catch  (ioexception e)  {              system.out.println ("failed to close fileoutputstream ");             }         }        return filename;    }} 

Second, the test class:

Package Test;import Java.util.hashmap;import java.util.map;import PDF. Exportpdfutil;public class Testpdf {public static void main (string[] args) {map<string,string> content=new Hashma  P<string,string> (); Content.put ("name", "Hello");//The name of the input field defined by the template (for example: name), filled with the value exportpdfutil.exportpdf ("c:\\", "C:\\template.pdf", "c:// windows//fonts//simsun.ttc,1 ", content); }}

Export PDF files with Itext