这是渲染的数据
这是生成的pdf文件，直接可以打印
需要安装和npm依赖和引入封装的pdf.js文件
npm install --save html2canvas
npm install jspdf --save
pdf.js文件
import html2canvas from "html2canvas";
import jsPDF from "jspdf";
export const downloadPDF = (page, fileName) => {html2canvas(page).then(function (canvas) {canvas2PDF(canvas, fileName);});
};
const canvas2PDF = (canvas, fileName) => {let contentWidth = canvas.width;let contentHeight = canvas.height;let imgWidth = 595.28;let imgHeight = 595.28 / contentWidth * contentHeight;let pdf = new jsPDF("p", "pt");pdf.addImage(canvas.toDataURL("image/jpeg", 1.0),"JPEG",0,0,imgWidth,imgHeight);pdf.save(fileName + ".pdf");
};
具体实现
Tempalte
<template> <div> <div v-for="(item, index) in listDatas" :key="index"><div class="boss"><div class="box" :ref="`pdf-${index}`"><div class="box_son"><div class="titles">"XXX"竞赛</div><div class="zhunasd">准考证</div><div class="once"><div class="contents"><div>姓名: {{ item.name }}</div><div>考号: {{ item.kaohao }}</div><div>司职: {{ item.gongzhongTitle }}</div></div><div class="photos"><img :src="item.sfzhimgs" alt="" width="100%" height="150px" /></div></div><tableborder="1px solid #2D2822"cellpadding="0"cellspacing="0"class="tables"><tr><td style="width: 250px; border: 1px solid #2d2822"> 考试类别</td><td style="width: 180px; border: 1px solid #2d2822"> 序号</td></tr><tr><td style="width: 250px; border: 1px solid #2d2822"> 理论测试</td><td style="width: 180px; border: 1px solid #2d2822"> {{ item.liLunZw }}</td></tr><tr><tdstyle="width: 250px; border: 1px solid #2d2822"v-if="item.fangzhen[1] != undefined"> {{ item.fangzhen[0] }}</td><tdstyle="width: 180px; border: 1px solid #2d2822"v-if="item.uuid[1] != undefined"> {{ item.uuid[0] }}</td></tr><tr><tdstyle="width: 250px; border: 1px solid #2d2822"v-if="item.fangzhen[1] != undefined"> {{ item.fangzhen[1] }}</td><tdstyle="width: 180px; border: 1px solid #2d2822"v-if="item.uuid[1] != undefined"> {{ item.uuid[1] }}</td></tr><tr><tdstyle="width: 250px; border: 1px solid #2d2822"v-if="item.fangzhen[2] != undefined"> {{ item.fangzhen[2] }}</td><tdstyle="width: 180px; border: 1px solid #2d2822"v-if="item.uuid[2] != undefined"> {{ item.uuid[2] }}</td></tr><tr><tdstyle="width: 250px; border: 1px solid #2d2822"v-if="item.fangzhen[3] != undefined"> {{ item.fangzhen[3] }}</td><tdstyle="width: 180px; border: 1px solid #2d2822"v-if="item.uuid[3] != undefined"> {{ item.uuid[3] }}</td></tr></table><div class="footers"><div>注意事项:</div><div class="footers_one">1、考生凭准考证和身份证进入考场,对号入座,并将准考证、<br /><div class="footers_two">身份证放在桌面上</div></div><div class="footers_two">2、准考证如有涂改或者损坏严重情况,将视为无效证件。</div></div></div></div></div></div><button @click="handleExport">导出PDF</button></div>
</template>
Script
1.转换为base64的图片才能生效 http和https的图片生成都不生效
2.这里用到的是Google Chrome浏览器多文件下载一次最多只有10个，这里我们有做异步处理延迟1秒下载
<script>import { downloadPDF } from "../utils/pdf";
export default {data() {return {listDatas: [{kaohao: "2100",liLunZw: "D106",sfzh: "2110",name: "Stephen Curry",uuid: ["GS01", "GA02", "GF03"],gongzhongTitle: "后卫",fangzhen: ["运球训练", "投篮训练", "上篮训练"],sfzhimgs: "转换为base64的图片才能生效 http和https的图片生成都不生效",},{kaohao: "2100",liLunZw: "D107",sfzh: "2110",name: "Andrew Wiggins",uuid: ["GS01", "GA02", "GF03"],gongzhongTitle: "小前锋",fangzhen: ["运球训练", "投篮训练", "上篮训练"],sfzhimgs: "",},{kaohao: "2100",liLunZw: "D107",sfzh: "2110",name: "Andrew Wiggins",uuid: ["GS01", "GA02", "GF03"],gongzhongTitle: "小前锋",fangzhen: ["运球训练", "投篮训练", "上篮训练"],sfzhimgs: "",},{kaohao: "2100",liLunZw: "D107",sfzh: "2110",name: "Andrew Wiggins",uuid: ["GS01", "GA02", "GF03"],gongzhongTitle: "小前锋",fangzhen: ["运球训练", "投篮训练", "上篮训练"],sfzhimgs: "",},],};},methods: {handleExport() {this.downloadPDFs();},async downloadPDFs() {const downloadPromises = [];for (let index = 0; index < this.listDatas.length; index++) {const item = this.listDatas[index].name; const pdfElement = this.$refs[`pdf-${index}`][0]; var content = pdfElement.textContent; const startIndex = content.indexOf("考号:") + 4; const endIndex = content.indexOf("工种:");const examNumber = content.substring(startIndex, endIndex).trim(); const ZhongName = item + "," + examNumber; await this.delay(1000); const downloadPromise = downloadPDF(pdfElement, ZhongName); downloadPromises.push(downloadPromise);}Promise.all(downloadPromises).then(() => {console.log("全部下载完成");}).catch((error) => {console.error("下载出错", error);});},delay(ms) {return new Promise((resolve) => setTimeout(resolve, ms));},},
};
</script>
Style
<style>
.boss {width: 100%;margin: 0 auto;display: flex;justify-content: center;overflow: hidden;
}
.box {width: 480px;height: 760px;display: flex;justify-content: center;
}
.box_son {width: 425px;height: 600px;margin-top: 30px;
}
.titles {font-size: 20px;font-weight: 800;display: flex;justify-content: center;margin-top: 10px;
}
.zhunasd {font-size: 20px;font-family: Microsoft YaHei;font-weight: 800;text-align: center;
}
.once {width: 100%;display: flex;justify-content: space-between;margin-top: 20px;font-size: 17px;font-family: Microsoft YaHei;font-weight: 500;
}
.contents {width: 70%;height: 160px;line-height: 56px;
}
.photos {width: 30%;height: 160px;
}
.tables {width: 425px;margin-top: 20px;height: 180px;
}
.footers {margin-top: 20px;
}
.footers_one {margin-top: 10px;
}
.footers_two {margin-top: 10px;
}
</style>
综上就是全部的实现的内容
