Java itext5预览PDF设置页眉页脚
作者:互联网
如果是maven项目需要添加依赖,普通项目在官网(http://itextpdf.com/)下载对应的jar包加入即可。依赖如下:
<dependency> <groupId>com.itextpdf</groupId> <artifactId>itextpdf</artifactId> <version>5.5.10</version> </dependency> <dependency> <groupId>com.itextpdf</groupId> <artifactId>itext-asian</artifactId> <version>5.2.0</version> </dependency>
预览:
public void review(HttpServletResponse response) throws Exception { //预览 response.setHeader("content-Type", "application/pdf"); response.setCharacterEncoding("utf-8"); response.setHeader("Content-Disposition", "inline;filename=text.pdf"); //新建Document对象并设置纸张大小和边距(左,右, 上,下) Document document = new Document(PageSize.A4, 10, 20, 30, 40); //PDF属性(可写可不写) document.addAuthor("author");//作者 document.addTitle("title");//标题 document.addSubject("subject");//主题 document.addKeywords("keywords");//关键字 try { //建立书写器(Writer)与document对象关联,以字节流输出 //创建 PdfWriter对象 第一个参数是对文档对象的引用,第二个参数是文件的实际名称,在该名称中还会给出其输出路径。 PdfWriter writer = PdfWriter.getInstance(document, response.getOutputStream()); writer.setPageEvent(new MyHeaderFooter());// 页眉页脚(需要时设置) //打开document document.open(); //添加内容 setpdf(document, writer); //关闭Document对象和书写器(Writer) if(document != null){ document.close(); writer.close(); } } catch (IOException e) { e.printStackTrace(); } }
内容设置:
/** * 具体内容设置 */ public Document setpdf(Document document, PdfWriter writer) throws Exception { float hlead = 28; Font font1 = new Font(BaseFont.createFont( "/zhttfs/2.ttf",BaseFont.IDENTITY_H,BaseFont.NOT_EMBEDDED), 22);//小标宋2号 float pleft = 45; float pright = 35; Paragraph p1 = new Paragraph("我是标题", font1); p1.setLeading(32);//行间距 p1.setAlignment(Element.ALIGN_CENTER);//居中 p1.setIndentationLeft(pleft); p1.setIndentationRight(pright); document.add(p1); document.newPage(); Paragraph p2 = new Paragraph("我是标题", font1); p2.setLeading(32);//行间距 p2.setAlignment(Element.ALIGN_CENTER);//居中 p2.setIndentationLeft(pleft); p2.setIndentationRight(pright); document.add(p2); return document; }
页眉页脚:
import com.itextpdf.text.*; import com.itextpdf.text.pdf.*; import java.io.IOException; public class MyHeaderFooter extends PdfPageEventHelper { //总页数 PdfTemplate totalPage; //字体 Font hfFont; { try { hfFont = new Font(BaseFont.createFont( "/zhttfs/1.ttf",BaseFont.IDENTITY_H,BaseFont.NOT_EMBEDDED), 14); } catch (DocumentException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } //打开文档时,创建一个总页数的模版 public void onOpenDocument(PdfWriter writer, Document document) { PdfContentByte cb = writer.getDirectContent(); totalPage = cb.createTemplate(50, 14);//共 页的宽高 } //一页加载完成触发,写入页眉和页脚 public void onEndPage(PdfWriter writer, Document document) { //创建一个两列的表格 PdfPTable table = new PdfPTable(2); try { table.setTotalWidth(PageSize.A4.getWidth());//总宽度为A4纸张宽度 table.setLockedWidth(true);//锁定列宽 table.setWidths(new int[]{50, 50});//设置每列宽度 PdfPCell cell = new PdfPCell(new Phrase("第"+ document.getPageNumber() +"页/", hfFont)); cell.setHorizontalAlignment(Element.ALIGN_RIGHT);//设置水平右对齐 cell.setVerticalAlignment(Element.ALIGN_MIDDLE);//设置垂直居中 cell.disableBorderSide(15);//隐藏全部边框 table.addCell(cell); PdfPCell cell1 = new PdfPCell(Image.getInstance(totalPage));//共 页 cell1.setHorizontalAlignment(Element.ALIGN_LEFT);//设置水平左对齐 cell1.setVerticalAlignment(Element.ALIGN_MIDDLE);//设置垂直居中 cell1.disableBorderSide(15);//隐藏全部边框 table.addCell(cell1); table.writeSelectedRows(0, -1, 0, 50, writer.getDirectContent()); } catch (Exception e) { throw new ExceptionConverter(e); } //生成左侧页眉 ColumnText.showTextAligned(writer.getDirectContent(), Element.ALIGN_LEFT, new Paragraph("左页眉", hfFont), document.left(), PageSize.A4.getHeight() -30, 0); //生成右侧页眉 ColumnText.showTextAligned(writer.getDirectContent(), Element.ALIGN_RIGHT, new Paragraph("右页眉", hfFont), document.right(), PageSize.A4.getHeight() - 30, 0); } // 全部完成后,将总页数的pdf模版写到指定位置 public void onCloseDocument(PdfWriter writer,Document document) { String text = "共" + (writer.getPageNumber()) + "页"; ColumnText.showTextAligned(totalPage, Element.ALIGN_MIDDLE, new Paragraph(text, hfFont), 0, 0, 0); } }
标签:Document,Java,页脚,ALIGN,writer,页眉,new,document 来源: https://www.cnblogs.com/waft/p/15603802.html