效果图

QQ图片20190117140345.png

继承PdfPageEventHelper重写onEndPage方法

package com.xuqiang.itext.test;

import com.itextpdf.text.*;

import com.itextpdf.text.pdf.BaseFont;

import com.itextpdf.text.pdf.ColumnText;

import com.itextpdf.text.pdf.PdfPageEventHelper;

import com.itextpdf.text.pdf.PdfWriter;

import java.io.IOException;

/**

* @author xuqiang

* @date 2019/1/2

*/

public class PDFBuilder extends PdfPageEventHelper {

private Phrase leftHeader;

private Phrase rigntHeader;

static final int marginX = 90;

static final int marginY = 70;

private static BaseFont baseFont;

// 生成下划线空白占位符

private static String Blank;

// 页眉字体

private static Font font;

// 下划线字体

private static Phrase blankPhrase;

PDFBuilder(String[] header) {

this.leftHeader = new Phrase(header[0], PDFBuilder.font);

this.rigntHeader = new Phrase(header[1], PDFBuilder.font);

}

static {

try {

// 中文字体依赖itext得itext-asian包

baseFont = BaseFont.createFont("STSong-Light", "UniGB-UCS2-H", BaseFont.NOT_EMBEDDED);

StringBuilder sb = new StringBuilder();

for (int i = 0; i < 168; i++) {

sb.append("\u00a0");

}

Blank = sb.toString();

font = new Font(PDFBuilder.baseFont, 9, Font.UNDEFINED);

blankPhrase = new Phrase(PDFBuilder.Blank, new Font(PDFBuilder.baseFont, Font.DEFAULTSIZE, Font.UNDERLINE));

} catch (DocumentException e) {

e.printStackTrace();

} catch (IOException e) {

e.printStackTrace();

}

}

/**

* @param writer

* @param document

*/

@Override

public void onEndPage(PdfWriter writer, Document document) {

int yMargin = -20;

float top = document.top(yMargin);

// 第一页不生成页眉页脚

if (document.getPageNumber() == 1) {

return;

}

//生成下划线，使用空格占位

ColumnText.showTextAligned(writer.getDirectContent(),

Element.ALIGN_LEFT, PDFBuilder.blankPhrase,

document.left(-1), top, 0);

//生成左侧页眉

ColumnText.showTextAligned(writer.getDirectContent(),

Element.ALIGN_LEFT, leftHeader,

document.left(), top, 0);

//生成右侧页眉

ColumnText.showTextAligned(writer.getDirectContent(),

Element.ALIGN_RIGHT, rigntHeader,

document.right(), top, 0);

//生成页脚页数

ColumnText.showTextAligned(writer.getDirectContent(),

Element.ALIGN_RIGHT, new Phrase(String.valueOf(document.getPageNumber() - 1), PDFBuilder.font),

document.right(), document.bottom(yMargin), 0);

}

}

测试类

package com.xuqiang.itext.test;

import com.itextpdf.text.Document;

import com.itextpdf.text.PageSize;

import com.itextpdf.text.pdf.PdfWriter;

import com.itextpdf.tool.xml.XMLWorkerHelper;

import java.io.FileInputStream;

import java.io.FileOutputStream;

import java.io.OutputStream;

import java.nio.charset.StandardCharsets;

/**

* @author xuqiang

* @date 2018/12/29

*/

public class Test {

public static void main(String[] args) throws Exception {

// 创建一个文档

Document document = new Document(PageSize.A4, PDFBuilder.marginX, PDFBuilder.marginX, PDFBuilder.marginY, PDFBuilder.marginY);

// pdf输出流

OutputStream outputStream = new FileOutputStream("E:\\Users\\Desktop\\工作\\吊车组杆方案模板\\吊车组杆方案-test.pdf");

PdfWriter pdfWriter = PdfWriter.getInstance(document, outputStream);

// 添加页眉页脚

pdfWriter.setPageEvent(new PDFBuilder(new String[]{"新增糖厂坳配变解决110kV那前站10kV903线糖厂坡配变过载工程", "吊车组立电杆施工方案"}));

document.open();

// XMLWorkerHelper.getInstance().parseXHtml(

// pdfWriter,

// document,

// new ByteArrayInputStream(

// "

第一页1p开始

"

// .getBytes(StandardCharsets.UTF_8)),

// StandardCharsets.UTF_8);

// html生成pdf，注意文件要是utf-8编码

// 不显示中文页面注意添加字体

// 标签格式严格，注意使用在线格式化工具格式化html代码

XMLWorkerHelper.getInstance().parseXHtml(

pdfWriter,

document,

new FileInputStream("E:\\Users\\Desktop\\工作\\吊车组杆方案模板\\吊车组杆方案.htm"),

StandardCharsets.UTF_8);

document.close();

}

}

依赖

compile 'com.itextpdf:itextpdf:5.5.13'

compile 'com.itextpdf.tool:xmlworker:5.5.13'

compile 'com.itextpdf:itext-asian:5.2.0'

springMVC导出PDF，解决下载文件中文乱码

/**

* 导出PDF文件

* @param response

* @throws Exception

*/

@RequestMapping("apppdf")

public void exportPDF(HttpServletResponse response) throws Exception {

// ftl 路径

String path = "ftl/pdf/pdfTemplate.ftl";

// 读取网页

String html = Tools.readFileAllContent(path);

// 设置也没数据

String[] header = new String[]{"新增糖厂坳配变解决110kV那前站10kV903线糖厂坡配变过载工程", "吊车组立电杆施工方案"};

// 文件名

String filename = URLEncoder.encode(header[0] + ".pdf", "UTF-8");

// 文件名写入返回头，解决中文乱码

response.setHeader("Content-Disposition", "attachment;filename=" + filename + ";filename*=UTF-8''" + filename);

// 获取输出流

ServletOutputStream outputStream = response.getOutputStream();

// 生成pdf并写回

ExportPDFUtil.exportPDF(outputStream, html, header);

}