iText5报表_页眉与页脚
import com.itextpdf.text.Document;
import com.itextpdf.text.DocumentException;
import com.itextpdf.text.Element;
import com.itextpdf.text.ExceptionConverter;
import com.itextpdf.text.Image;
import com.itextpdf.text.Phrase;
import com.itextpdf.text.Rectangle;
import com.itextpdf.text.pdf.ColumnText;
import com.itextpdf.text.pdf.PdfPCell;
import com.itextpdf.text.pdf.PdfPTable;
import com.itextpdf.text.pdf.PdfPageEventHelper;
import com.itextpdf.text.pdf.PdfTemplate;
import com.itextpdf.text.pdf.PdfWriter;
public class TableHeader extends PdfPageEventHelper{
String header;
PdfTemplate total;
public void setHeader(String header){
this.header=header;
}
public void onOpenDocument(PdfWriter writer,Document document){
total = writer.getDirectContent().createTemplate(30,16);
}
public void onEndPage (PdfWriter writer, Document document) {
PdfPTable table = new PdfPTable(3);
try{
table.setWidths(new int[]{24,24,2});
table.setTotalWidth(527);
table.setLockedWidth(true);
table.getDefaultCell().setFixedHeight(20);
table.getDefaultCell().setBorder(Rectangle.BOTTOM);
table.addCell(header);
table.getDefaultCell().setHorizontalAlignment(
Element.ALIGN_RIGHT);
table.addCell(String.format("page %d of",writer.getPageNumber()));
PdfPCell cell = new PdfPCell(Image.getInstance(total));
cell.setBorder(Rectangle.BOTTOM);
table.addCell(cell);
table.writeSelectedRows(0,-1,34,803,writer.getDirectContent());
}
catch(DocumentException de){
throw new ExceptionConverter(de);
}
}
public void onCloseDocument(PdfWriter writer,Document document){
ColumnText.showTextAligned(total,Element.ALIGN_LEFT,new Phrase(String.valueOf(writer.getPageNumber()-1)),2,2,0);
}
}调用代码如上面HeaderAndFooterDemo.java所示。
参考文献
1.Adding page events to PdfWriter (iText 5).http://what-when-how.com/itext-5/adding-page-events-to-pdfwriter-itext-5/
2iText5参考. http://api.itextpdf.com/itext/
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