itext转换html成pdf(支持中文、图片)

时间:2019-01-10
本文章向大家介绍itext转换html成pdf(支持中文、图片),主要包括itext转换html成pdf(支持中文、图片)使用实例、应用技巧、基本知识点总结和需要注意事项,具有一定的参考价值,需要的朋友可以参考一下。

1.首先导入依赖

         <dependency>
            <groupId>com.itextpdf</groupId>
            <artifactId>itextpdf</artifactId>
            <version>5.5.11</version>
        </dependency>
        <dependency>
            <groupId>com.itextpdf</groupId>
            <artifactId>itext-asian</artifactId>
            <version>5.2.0</version>
        </dependency>
        <dependency>
            <groupId>org.xhtmlrenderer</groupId>
            <artifactId>flying-saucer-pdf</artifactId>
            <version>9.0.7</version>
        </dependency>

2.代码部分

package com.pdf.util;


import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.OutputStream;

import org.jsoup.Jsoup;
import org.xhtmlrenderer.pdf.ITextFontResolver;
import org.xhtmlrenderer.pdf.ITextRenderer;

import com.lowagie.text.pdf.BaseFont;

/**
 * 转换html为pdf
 * @author Uncle Liu
 *
 */
public class Html2pdf {

    /**
     * 将HTML转成PD格式的文件。html文件的格式比较严格
     * @param htmlFile
     * @param pdfFile
     * @throws Exception
     */
    // <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd ">
    public static void html2pdf(String htmlFile, String pdfFile) throws Exception {
        // step 1
        String url = new File(htmlFile).toURI().toURL().toString();
        System.out.println(url);
        // step 2
        OutputStream os = new FileOutputStream(pdfFile);
        ITextRenderer renderer = new ITextRenderer();
        renderer.setDocument(url);

        // step 3 解决中文支持
        ITextFontResolver fontResolver = renderer.getFontResolver();
        if("linux".equals(getCurrentOperatingSystem())){
            fontResolver.addFont("/usr/share/fonts/chiness/simsun.ttc", BaseFont.IDENTITY_H, BaseFont.EMBEDDED);
        }else{
            fontResolver.addFont("C:\\Windows\\WinSxS\\amd64_microsoft-windows-font-truetype-simsun_31bf3856ad364e35_10.0.17134.1_none_e089ab61d8d9374e\\simsun.ttc", BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);
        }

        renderer.layout();
        renderer.createPDF(os);
        os.close();

        System.out.println("create pdf done!!");

    }

    public static String getCurrentOperatingSystem(){
        String os = System.getProperty("os.name").toLowerCase();
        System.out.println("---------当前操作系统是-----------" + os);
        return os;
    }


    public static void main(String[] args) {

        String htmlFile = "D:\\WorkSpace\\IdeaProjects\\pdf\\src\\main\\resources\\templates\\u.html";
        String pdfFile = "c:/test.pdf";
        try {
            Html2pdf.html2pdf(htmlFile, pdfFile);
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (Exception e) {
            e.printStackTrace();
        }

    }



}

3.html页面

注意:html格式非常严格,图片地址这里用的是绝对路径(file:///D:/WorkSpace/IdeaProjects/pdf/src/main/resources/static/images/1.jpg)

如果是相对路径要在后台设置

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8"/>
    <title>Title</title>
    <style>
        /*没有background-color生产的pdf会是空白*/
        body{ text-align:center;border: 0px;margin: 0px;background-color:#FFFFFF;}
        .div{ margin:0 auto; width:1188px; height:auto;}
        body {
            /*中文支持*/
            font-family:SimSun;
        }
    </style>
</head>
<body>

<div class="div">
    <div>
        
        <h2>123我</h2>
        <img src="file:///D:/WorkSpace/IdeaProjects/pdf/src/main/resources/static/images/1.jpg" style="width: 20px;height: 20px"/>
        <table border="1" cellspacing="0">
            <tr>
                <td>eE额33</td>
                <td>eE额33</td>
            </tr>
            <tr>
                <td>eE额33</td>
                <td>eE额33</td>
            </tr>
            <tr>
                <td>eE额33</td>
                <td>eE额33</td>
            </tr><tr>
            <td>eE额33</td>
            <td>eE额33</td>
        </tr>

        </table>
    </div>
</div>
</body>
</html>

4.生成pdf

超出页面长度时会自动分页

 

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原文地址:http://www.manongjc.com/article/42312.html