使用iText 7 生成pdf -

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2018-10 ( 2)
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使用iText 7 生成pdf

博客分类：

java

iText7 pdf 中文乱码

pom.xml

        <dependency>
            <groupId>org.freemarker</groupId>
            <artifactId>freemarker</artifactId>
            <version>2.3.19</version>
        </dependency>
        <!-- add all iText 7 Community modules -->
        <dependency>
            <groupId>com.itextpdf</groupId>
            <artifactId>itext7-core</artifactId>
            <version>7.1.3</version>
            <type>pom</type>
        </dependency>
        <dependency>
            <groupId>com.itextpdf</groupId>
            <artifactId>html2pdf</artifactId>
            <version>2.0.0</version>
        </dependency>

2. 添加模板

├─base
│  ├─css
│  │      base.css
│  │
│  ├─font
│  │      simhei.ttf
│  │      SIMSUN.TTC
│  │
│  └─images
│          aloner.jpg
│
└─hello
    ├─css
    │      hello.css
    │
    ├─images
    │      csdn.jpg
    │
    └─tpl
            hello.ftl

base.css

@CHARSET "UTF-8";
/*
 * Sunnysoft.com Inc.
 * Copyright (c) 2004-2018 All Rights Reserved.
 */
body {
    font-family: 'SimSun', 'Simhei', 'Serif', serif;
    margin: 0 8px 0 8px;
    padding: 0;
}

table {
    border-collapse: collapse;
    border-spacing: 0;
    border-left: 1px solid grey;
    border-top: 1px solid grey;
    table-layout: fixed;
    word-break: break-strict;
    width: 100%;
}

th, td {
    border-right: 1px solid grey;
    border-bottom: 1px solid grey;
    padding: 5px 15px;
}

th {
    font-weight: bold;
}

hello2.ftl

<#--
功能描述：这个模板主要是用于演示如何使用FreeMarker+iTextPdf生成pdf文件
-->
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="utf-8"/>
    <meta name="renderer" content="webkit|ie-comp|ie-stand"/>
    <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"/>
    <meta name="viewport"
          content="width=device-width,initial-scale=1,minimum-scale=1.0,maximum-scale=1.0,user-scalable=no"/>
    <title>hello</title>
    <link type="text/css" rel="stylesheet" href="/templates/base/css/base.css"/>
    <link type="text/css" rel="stylesheet" href="/templates/hello/css/hello.css"/>
    <style>
        @page {
            size: A3;
            @bottom-center {
                content: "Page " counter(page) " of " counter(pages);
            }
        }
    </style>
</head>
<body>
<div class="pos">
    <a href="https://www.baidu.com" target="_blank">演示链接</a>
</div>
<img alt="演示本地图片" src="${img1}"/>
<img alt="演示网络图片" src="${img2}"/>
<img alt="演示临时图片" src="${img3}"/>
<h3>基本信息</h3>
<table>
    <tr>
        <td width="10%">姓名</td>
        <td width="40%">${emp.aac001}</td>
        <td width="10%">证件号</td>
        <td width="40%">${emp.aac002}</td>
    </tr>

    <tr>
        <td>年龄</td>
        <td>${emp.aac003}</td>
        <td>出生日期</td>
        <td>${emp.aac002}</td>
    </tr>
</table>

<h3>执行信息</h3>
<table>
    <thead>
    <th width="10%">aac001</th>
    <th width="10%">aac002</th>
    <th width="10%">aac003</th>
    <th width="10%">执行案号</th>
    <th width="10%">执行法院</th>
    <th width="20%">执行内容</th>
    <th width="10%">执行状态</th>
    <th width="20%">异议备注</th>
    </thead>

    <tbody>
    <#list empList as emp >
    <tr>
        <td>${emp.aac001}</td>
        <td>${emp.aac002}</td>
        <td>${emp.aac003}</td>
        <td>执行案号</td>
        <td>执行法院</td>
        <td>执行内容</td>
        <td>执行状态</td>
        <td>异议备注</td>
    </tr>
    </#list>
    </tbody>
</table>
<div>This is the first div.</div>
<div style="page-break-before:always">This is the second div.</div>
<div style="page-break-after:always">This is the third div.</div>
<div>This is the fourth div.</div>
<div style="page-break-before:right">This is the fifth div.</div>
<div style="page-break-after:right">This is the sixth div.</div>
<div>This is the last div.</div>
</body>
</html>

FreemarkerConfiguration.java

import freemarker.template.Configuration;

public class FreemarkerConfiguration {
	public static final String PATHPREFIX = "/templates";
	private static Configuration config;

	/*
	 * Static initialization.
	 * 
	 * Initialize the configuration of Freemarker.
	 */
	static {
		config = new Configuration();
		config.setClassForTemplateLoading(FreemarkerConfiguration.class, PATHPREFIX);
	}

	public static Configuration getConfiguation() {
		return config;
	}
}

HtmlGenerator.java

import freemarker.template.Configuration;
import freemarker.template.Template;

import java.io.BufferedWriter;
import java.io.StringWriter;
import java.util.Map;

public class HtmlGenerator {

    /**
     * Generate html string.
     *
     * @param template the name of freemarker teamlate.
     * @param dataMap  the data of teamlate.
     * @return htmlStr
     * @throws Exception
     */
    public static String generate(String template, Map<String, Object> dataMap)
            throws Exception {
        Configuration config = FreemarkerConfiguration.getConfiguation();
        Template tp = config.getTemplate(template);
        StringWriter stringWriter = new StringWriter();
        BufferedWriter writer = new BufferedWriter(stringWriter);
        tp.setEncoding("UTF-8");
        tp.process(dataMap, writer);
        String htmlStr = stringWriter.toString();
        writer.flush();
        writer.close();
        return htmlStr;
    }
}

PdfGenerator.java

import com.itextpdf.html2pdf.ConverterProperties;
import com.itextpdf.html2pdf.HtmlConverter;
import com.itextpdf.html2pdf.resolver.font.DefaultFontProvider;
import com.itextpdf.io.font.PdfEncodings;
import com.itextpdf.kernel.font.PdfFont;
import com.itextpdf.kernel.font.PdfFontFactory;
import org.apache.commons.io.IOUtils;

import java.io.*;
import java.util.Map;
import java.util.UUID;

/**
 * @author LewJun
 * @version v0.1 2018/10/16 17:21 LewJun Exp $$
 */
public class PdfGenerator {
    private static String              RESOURCESPATH;
    private static ConverterProperties props;

    static {
        RESOURCESPATH = PdfGenerator.class.getResource("/").getPath();

        DefaultFontProvider fontProvider = new DefaultFontProvider();
        try {
            // 方式1
//            PdfFont f2 = PdfFontFactory.createFont(RESOURCESPATH + "templates/base/font/simhei.ttf",
//                    PdfEncodings.IDENTITY_H,true);
//        方式2 使用ttf字体
//        String fontPath = RESOURCESPATH + "templates/base/font/simhei.ttf";
//        fontProvider.addFont(fontPath);

            // 方式3 使用ttc字体
            PdfFont ttcFont = PdfFontFactory.createTtcFont(RESOURCESPATH + "templates/base/font/SIMSUN.TTC", 1,
                    PdfEncodings.IDENTITY_H, false, true);
            fontProvider.addFont(ttcFont.getFontProgram());
        } catch (IOException e) {
            e.printStackTrace();
        }
        props = new ConverterProperties();
        props.setFontProvider(fontProvider);
    }

    public static InputStream generate(String tpl, Map<String, Object> dataMap) throws Exception {
        String htmlStr = HtmlGenerator.generate(tpl, dataMap);
        File tmpPdfFile = File.createTempFile(System.currentTimeMillis() + "", ".pdf");
        File tmpHtmlFile = new File(RESOURCESPATH + UUID.randomUUID().toString() + ".html");
        OutputStream outfile = new FileOutputStream(tmpHtmlFile);
        IOUtils.write(htmlStr, outfile);
        IOUtils.closeQuietly(outfile);
        HtmlConverter.convertToPdf(tmpHtmlFile, tmpPdfFile, props);
        return new FileInputStream(tmpPdfFile);
    }
}

PrintServlet.java

response.setCharacterEncoding("utf-8");
            response.setContentType("application/pdf");
            response.addHeader(
                    "Content-Disposition",
                    "attachment; filename="
                            + String.format("%s.pdf",
                            Long.toString(System.currentTimeMillis())));
            out = response.getOutputStream();

            Map<String, Object> dataMap = new HashMap<>();
            dataMap.put("img1", "/templates/base/images/aloner.jpg");
            dataMap.put("img2", "http://mmbiz.qpic.cn/mmbiz/PiajxSqBRaEIQxibpLbyuSK8jCzLMb60WcYoLMD3nrCodIwbPeds9WFXYcEQapJ88EE4vfAwufMZWH1ZdC49HiaSg/0?wx_fmt=png");
            File tempFile = File.createTempFile(System.currentTimeMillis() + "", ".jpg");
            IOUtils.copy(new FileInputStream("d:/jing.png"), new FileOutputStream(tempFile));
            dataMap.put("img3", tempFile.getPath());
            dataMap.put("emp", new Emp(111, new Date(), 22));
            dataMap.put("empList", CollectionUtil.newArrayList(
                    new Emp(111, new Date(), 234),
                    new Emp(222, new Date(), 523452),
                    new Emp(333, new Date(), 534),
                    new Emp(444, new Date(), 4645),
                    new Emp(555, new Date(), 6456)
                    )
            );

            IOUtils.copy(PdfGenerator.generate("hello/tpl/hello2.ftl", dataMap), out);