JSP转PDF文件进行打印-优快云博客

本文介绍了一个使用JSP和itext库生成PDF文件的方法，并实现了网页上的打印功能。通过设置表格样式、字体等参数，可以灵活地控制生成的PDF内容。

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在JSP中使用PDF打印,demo项目结构如下:

index.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"	pageEncoding="UTF-8"%>
<%@page import="com.lowagie.text.*,com.lowagie.text.pdf.*,com.company.pdf.ExportPDF421"%>
<%
	String[] header ={"标题A","标题B","标题C","标题D","标题E","标题F","标题G"};
	String[] bogusData = { "内容A", "内容B", "内容C", "内容D","内容E", "内容F"};
	int [] headerwidths = {8,4,8,12,8,11}; //列宽度
	//样式
	BaseFont bfChinese = BaseFont.createFont("STSong-Light", "UniGB-UCS2-H", BaseFont.NOT_EMBEDDED); 
	Font fontHeader = new Font(bfChinese, 12, Font.BOLD);		//Header Style
	Font fontContent = new Font(bfChinese, 12, Font.NORMAL);	//Header Style
	//表
	PdfPTable table = new PdfPTable(6);							//列数
		table.setWidthPercentage(100);							//表宽百分比
	   	table.setHorizontalAlignment(Element.ALIGN_CENTER);		//表居中
	   	table.setWidths(headerwidths);
		//表格标题行	
		for(int j= 0;j<header.length;j++){
			int col=1,row=2;
			if(j==2){
				col=2;
				row=1;
			}else if(j>4){
				row=1;
			}
			table.addCell(ExportPDF421.setHeaderCell(header[j],fontHeader,col,row,Element.ALIGN_MIDDLE,Element.ALIGN_CENTER,0.85f));
		}
		//表格内容行	
		for (int i = 1; i < 100; i++) {
	        for (int x = 0; x < bogusData.length; x++) {
	    		table.addCell(ExportPDF421.setContentCell(bogusData[x]+i,fontContent,Element.ALIGN_MIDDLE,Element.ALIGN_CENTER));
	        }
		}
	String url = ExportPDF421.print(response,request,table,"文档标题421","abc.pdf");
%>

<html>
<head>
<script type="text/javascript">
	function doPrint(){
		var params = "?uri=<%=url%>";
		var url = encodeURI("pdf.jsp"+params);
		document.getElementById("print").src= url;
	}
	
	function doView(){
		var url = encodeURI("html.jsp");
		document.getElementById("print").src= url;
	}
</script>
</head>
<body> 
	<input type="button" value="查看" onclick="doView()"/>
	<input type="button" value="打印" onclick="doPrint();"/>
	<br>
	URL:<%=url %>
	<br>
	<table>
	
	</table>
	<iframe id="print" name="print" src='html.jsp' style="border:1px solid red;" width="800" height="380"></iframe>
</body>
</html>

pdf.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
	pageEncoding="UTF-8"%>
<%
	String uri= java.net.URLDecoder.decode(request.getParameter("uri"),"gbk"); 
		   uri = null==uri?"":uri;
%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
	<head>
		<title>分页显示示例</title>
	</head>
	<body>
		 <object id="printer" align="center" data="<%=uri%>" type="application/pdf" width="780" height="370"/>
	</body>
</html>

html.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
	pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
	<head>
		<title>TEST</title>
	</head>
	<body>
		<table border=1 width="780" height="340" cellpadding="1" cellspacing="0" align="center">
			<thead  align="center">
				<tr style="font-weight:bold;">
					<td>标题A</td>
					<td>标题B</td>
					<td>标题C</td>
					<td>标题D</td>
					<td>标题E</td>
					<td>标题F</td>
					<td>标题G</td>
				</tr>
			</thead>
			<tbody  align="center">
				<tr>
					<td>内容A</td>
					<td>内容B</td>
					<td>内容D</td>
					<td>内容C</td>
					<td>内容E</td>
					<td>内容F</td>
				</tr>
			</tbody> 
		</table>
	</body>
</html>

ExportPDF421.java

package com.company.pdf;
import java.io.File;
import java.io.FileOutputStream;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.lowagie.text.Document;
import com.lowagie.text.Element;
import com.lowagie.text.Font;
import com.lowagie.text.Phrase;
import com.lowagie.text.Rectangle;
import com.lowagie.text.pdf.BaseFont;
import com.lowagie.text.pdf.PdfPCell;
import com.lowagie.text.pdf.PdfPTable;
import com.lowagie.text.pdf.PdfWriter;

public class ExportPDF421 {
	private static String DOC_TITLE = "title";
	private static String DOC_HEADER = "header";
	private static String DOC_CONTENT = "content";
	private static String DOC_FOOTER = "footer";
	private static String FILE_DIR = "/download/abc/";
	private static Font fontZH = null;

	public static String print(HttpServletResponse response,HttpServletRequest request,PdfPTable table,String title,String fileName) throws Exception {
		
		// 取URL
		String root = request.getContextPath();
		String url = request.getRequestURL().toString();
		url = url.substring(0, url.indexOf(root)) + root;
		url += FILE_DIR+fileName;
		// 取真实路径
		String rPath = request.getRealPath(FILE_DIR);
		//创建文件夹
		File f = new File(rPath);
		if (!f.isDirectory()) {
			f.mkdirs();
		}
	 
		BaseFont bfChinese = BaseFont.createFont("STSong-Light","UniGB-UCS2-H", BaseFont.NOT_EMBEDDED);
		fontZH = new Font(bfChinese, 20, Font.BOLD);
		
		// 插入一个Table
		FileOutputStream out = new FileOutputStream(rPath+File.separator + fileName);
		Document document = new Document();
		PdfWriter.getInstance(document, out);
			document.open(); 
			//文件标题
			if(null!=title && !"".equals(title)){
				PdfPTable tab = new PdfPTable(1);						//列数
				PdfPCell cell = new PdfPCell(new Phrase(title,fontZH));	//标题
				cell.setColspan(1);										//跨列 
				cell.setBorder(Rectangle.NO_BORDER); 					//去边框
				cell.setFixedHeight(50f);  								//行高
				cell.setVerticalAlignment(Element.ALIGN_MIDDLE);		//上下居中
				cell.setHorizontalAlignment(Element.ALIGN_CENTER);		//左右居中
				tab.addCell(cell); 
				document.add(tab); 
				//document.add(new Paragraph("\n\n"));	//换行 
			}
			//数据内容
			if(null!=title){
				document.add(table);
			}
			document.close();
		return url;
	}
	
	/**
	 * 设置表格内容和样式
	 * @param text
	 * @param font
	 * @param colspan
	 * @param rowspan
	 * @param align
	 * @param valign
	 * @param fill
	 * @return
	 */
	public static PdfPCell setCell(String flag,String text,Font font,int colspan,int rowspan,int align,int valign,float fill){
		PdfPCell cell = new PdfPCell(new Phrase(text,font));
    	cell.setVerticalAlignment(align);			//上下居中
		cell.setHorizontalAlignment(valign);		//左右居中
		if(DOC_TITLE.equals(flag)){
			
		}else if(DOC_HEADER.equals(flag)){
			cell.setColspan(colspan);
			cell.setRowspan(rowspan);
			cell.setGrayFill(fill);
		}else if(DOC_CONTENT.equals(flag)){

		}else if(DOC_FOOTER.equals(flag)){
			
		}
		return cell;
	}
	
	/**
	 * 设置表格列头
	 * @param text
	 * @param font
	 * @param colspan
	 * @param rowspan
	 * @param align
	 * @param valign
	 * @param grayfill
	 * @return
	 */
	public static PdfPCell setHeaderCell(String text,Font font,int colspan,int rowspan,int align,int valign,float grayfill){
		PdfPCell cell = setCell(DOC_HEADER,text,font,colspan,rowspan,align,valign,grayfill);
		return cell;
	}
	
	/**
	 * 设置表格内容
	 * @param text
	 * @param font
	 * @param align
	 * @param valign
	 * @return
	 */
	public static PdfPCell setContentCell(String text,Font font,int align,int valign){
		PdfPCell cell = setCell(DOC_CONTENT,text,font,1,1,align,valign,1f);
		return cell;
	}
}

访问:http://127.0.0.1:8080/print/index.jsp 点击"打印",会显示:

点击上图中的打印机图标,即可完成打印