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必须服气!Java使用iText7生成PDF步骤竟如此详细!

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雨孟
2021-11-14 · 字节跳动研发岗实习生

前言

文本记录Java使用iText7生成PDF

iText 7是iText强大的PDF工具包的最新版本,用于PDF生成,PDF编程,处理和操作,如数字签名等

官方文档:https://kb.itextpdf.com/home/it7kb/ebooks

简单生成PDF

官方文档:https://kb.itextpdf.com/home/it7kb/ebooks/itext-7-jump-start-tutorial-for-java

根据文档说明,我们引入依赖

<properties>
    <!-- 省略其他部分...-->
    <itext7.version>7.1.7</itext7.version></properties><dependencies>
    <!-- 省略其他部分...-->
    <!-- itextpdf -->
    <dependency>
        <groupId>com.itextpdf</groupId>
        <artifactId>kernel</artifactId>
        <version>${itext7.version}</version>
    </dependency>
    <dependency>
        <groupId>com.itextpdf</groupId>
        <artifactId>io</artifactId>
        <version>${itext7.version}</version>
    </dependency>
    <dependency>
        <groupId>com.itextpdf</groupId>
        <artifactId>layout</artifactId>
        <version>${itext7.version}</version>
    </dependency>
    <dependency>
        <groupId>com.itextpdf</groupId>
        <artifactId>forms</artifactId>
        <version>${itext7.version}</version>
    </dependency>
    <dependency>
        <groupId>com.itextpdf</groupId>
        <artifactId>pdfa</artifactId>
        <version>${itext7.version}</version>
    </dependency></dependencies>

代码

<properties>
    <!-- 省略其他部分...-->
    <itext7.version>7.1.7</itext7.version></properties><dependencies>
    <!-- 省略其他部分...-->
    <!-- itextpdf -->
    <dependency>
        <groupId>com.itextpdf</groupId>
        <artifactId>kernel</artifactId>
        <version>${itext7.version}</version>
    </dependency>
    <dependency>
        <groupId>com.itextpdf</groupId>
        <artifactId>io</artifactId>
        <version>${itext7.version}</version>
    </dependency>
    <dependency>
        <groupId>com.itextpdf</groupId>
        <artifactId>layout</artifactId>
        <version>${itext7.version}</version>
    </dependency>
    <dependency>
        <groupId>com.itextpdf</groupId>
        <artifactId>forms</artifactId>
        <version>${itext7.version}</version>
    </dependency>
    <dependency>
        <groupId>com.itextpdf</groupId>
        <artifactId>pdfa</artifactId>
        <version>${itext7.version}</version>
    </dependency></dependencies>

效果

必须服气,Java使用iText7生成PDF步骤竟如此详细


生成的PDF

必须服气,Java使用iText7生成PDF步骤竟如此详细


文档属性

必须服气,Java使用iText7生成PDF步骤竟如此详细


HTML转PDF

官方文档:https://kb.itextpdf.com/home/it7kb/ebooks/itext-7-converting-html-to-pdf-with-pdfhtml

pdfHTML是iText 7的一个附加组件,需要添加依赖

<properties>
    <!-- 省略其他部分...-->
    <itext7.html2pdf.version>2.1.4</itext7.html2pdf.version></properties><dependencies>
    <!-- 省略其他部分...-->
    <!-- itextpdf html2pdf组件-->
    <dependency>
        <groupId>com.itextpdf</groupId>
        <artifactId>html2pdf</artifactId>
        <version>${itext7.html2pdf.version}</version>
    </dependency></dependencies>

代码

代码同上,仅main测试函数不同!

    //测试
    public static void main(String[] args) {        //test();
        html2pdf();
    }

PS:html内容往下拉

效果

必须服气,Java使用iText7生成PDF步骤竟如此详细


html页面

<!DOCTYPE html><html><head>
    <title>简单简历</title>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <meta http-equiv="cache-control" content="no-cache, no-store, must-revalidate"/>
    <meta http-equiv="pragma" content="no-cache"/>
    <meta http-equiv="expires" content="0"/>
    <!-- 自定义样式 -->
    <style>
        *{            font-family: "Helvetica Neue",Helvetica,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","微软雅黑",Arial,sans-serif;
        }        div {            margin: 0;            padding: 0;
        }        a {            text-decoration: none;            padding: 0;            margin: 5px 0;            color: black;
        }        a:hover {            color: #5c8dff;
        }        b{            margin: 0 10px;
        }        /* 主体 */
        .main {            /*margin: 0 auto;*/
            /*width: 770px;*/
            /*box-shadow: 0 2px 12px 0 rgba(0, 0, 0, 0.1);*/
            /*border: 1px solid #dad8d8;*/
            /*background: #fbfbfb;*/
        }        /* 1级标题 */
        h3.list1 {            color: #409EFF;            border-bottom: 1px solid #409EFF;            padding: 5px;            margin: 50px 0 0 0;
        }        /* 大模块 */
        .block,.block1 {            /*background: #efefef;*/
            /*border: 1px solid #dad8d8;*/
            margin: 0 0 20px 0;            padding: 0 10px;
        }        .block,.block1 p {            text-indent:2em;
        }        .block:hover {            background: #eeeeee;
        }        .block1:hover {            background: #cecece;
        }        .button-list{            text-align: center;            margin: 20px auto;            padding: 10px;            width: 1024px;
        }    </style></head><div><!-- 简历主体 --><div id="div" class="main">
    <div class="section">
        <div class="module">
            <h3 class="list1" style="margin: 0;">基本信息</h3>
            <div class="block">
                <p>XXX<b>/</b>男<b>/</b>25岁</p>
                <p>本科<b>/</b>XX学校<b>/</b>XX专业<b>/</b>2014-2018</p>
                <p>工龄:X年</p>
                <p>手机:XXXXXXXXXX</p>
                <p>邮箱:XXXXX@qq.com</p>
                <p>GitHub:<a href="https://github.com/huanzi-qch">https://github.com/huanzi-qch</a></p>
                <p>博客园:<a href="https://www.cnblogs.com/huanzi-qch">https://www.cnblogs.com/huanzi-qch</a></p>
                <p>求职岗位:Java开发<b>/</b>目标城市:南宁市<b>/</b>期望薪资:面议</p>
                <p>注:已离职,一个月可到岗</p>
                <img style="position: relative;top: -350px;left: 500px;width: 100px;height: 130px;" src="logo.png"/>
        <div class="module">
            <h3 class="list1">技能清单</h3>
            <div class="block">
                <p>熟悉XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX。</p>
                <p>熟悉XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX。</p>
                <p>熟悉XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX。</p>
                <p>熟悉XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX。</p>
                <p>熟悉XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX。</p>
                <p>熟悉XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX。</p>
                <p>熟悉XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX。</p>
                <p>熟悉XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX。</p>
                <p>熟悉XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX。</p>
                <p>熟悉XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX。</p>
                <p>熟悉XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX。</p>
        <div class="module">
            <h3 class="list1">工作经历</h3>
            <div class="block">
                <p>XXX技术有限公司<b>/</b>Java开发工程师<b>/</b>2018.01 - 至今</p>
                <p>参与多个项目开发、测试、部署等工作,包括:</p>
                <p>1、XXX。</p>
                <p>2、XXX。</p>
                <p>3、XXX。</p>
        <div class="module">
            <h3 class="list1">项目经历</h3>
            <div class="block">
                <h4 class="list2">项目1</h4>
                <div class="block1">
                    <p>项目名称:XXX(2020-11 —2021-11)</p>
                    <p>项目介绍:XXXXXXXXXXXXXXX。</p>
                    <p>技术架构:XXX + XXX + XXX。</p>
                    <p>职责描述:</p>
                    <p>1、XXXX。</p>
                    <p>2、XXXX。</p>
                    <p>3、XXXX。</p>
                    <p>4、XXXX。</p>
                <h4 class="list2">项目2</h4>
                <div class="block1">
                    <p>项目名称:XXX(2020-11 —2021-11)</p>
                    <p>项目介绍:XXXXXXXXXXXXXXX。</p>
                    <p>技术架构:SpringBoot + Vue + Element-UI + ECharts。</p>
                    <p>职责描述:</p>
                    <p>1、XXXX。</p>
                    <p>2、XXXX。</p>
                    <p>3、XXXX。</p>
                    <p>4、XXXX。</p>
        <div class="module">
            <h3 class="list1">自我评价</h3>
            <div class="block">