63 lines
2.4 KiB
Java
63 lines
2.4 KiB
Java
package com.zhgd.xmgl.pdf;
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import com.itextpdf.text.*;
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import com.itextpdf.text.pdf.*;
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import lombok.extern.slf4j.Slf4j;
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import java.io.IOException;
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@Slf4j
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public class MyHeaderFooter3 extends PdfPageEventHelper {
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// 总页数
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PdfTemplate totalPage;
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Font hfFont;
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{
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try {
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hfFont = new Font(BaseFont.createFont("STSong-Light", "UniGB-UCS2-H", BaseFont.NOT_EMBEDDED), 8, Font.NORMAL);
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} catch (DocumentException e) {
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log.error("error：", e);
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} catch (IOException e) {
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log.error("error：", e);
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}
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}
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// 打开文档时，创建一个总页数的模版
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public void onOpenDocument(PdfWriter writer, Document document) {
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PdfContentByte cb =writer.getDirectContent();
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totalPage = cb.createTemplate(30, 16);
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}
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// 一页加载完成触发，写入页眉和页脚
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public void onEndPage(PdfWriter writer, Document document) {
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PdfPTable table = new PdfPTable(3);
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try {
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table.setTotalWidth(PageSize.A3.getHeight() - 100);
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table.setWidths(new int[] { 24, 24, 3});
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table.setLockedWidth(true);
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table.getDefaultCell().setFixedHeight(-10);
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table.getDefaultCell().setBorder(Rectangle.BOTTOM);
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table.addCell(new Paragraph("页脚", hfFont));// 可以直接使用addCell(str)，不过不能指定字体，中文无法显示
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table.getDefaultCell().setHorizontalAlignment(Element.ALIGN_RIGHT);
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table.addCell(new Paragraph("第" + writer.getPageNumber() + "页/", hfFont));
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// 总页数
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PdfPCell cell = new PdfPCell(Image.getInstance(totalPage));
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cell.setBorder(Rectangle.BOTTOM);
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table.addCell(cell);
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// 将页眉写到document中，位置可以指定，指定到下面就是页脚
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// table.writeSelectedRows(0, -1, 50,PageSize.A4.getHeight() - 20, writer.getDirectContent());
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table.writeSelectedRows(0, -1, 50,PageSize.A3.getHeight() - 1150, writer.getDirectContent());
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} catch (Exception de) {
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throw new ExceptionConverter(de);
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}
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}
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// 全部完成后，将总页数的pdf模版写到指定位置
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public void onCloseDocument(PdfWriter writer,Document document) {
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String text = "总" + (writer.getPageNumber()) + "页";
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ColumnText.showTextAligned(totalPage, Element.ALIGN_LEFT, new Paragraph(text,hfFont), 2, 2, 0);
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}
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}
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