vue页面导出pdf

安装插件

npm install html2canvas --save
npm install jspdf --save

exportPDF.js

import html2Canvas from 'html2canvas';
import JsPDF from 'jspdf';

export default {
 install (Vue, options) {
  Vue.prototype.exportPdfHandler = function (el,title,imgtype) {
    // el 要导出元素的id
    // title 文件名称
    // imgtype 图片类型 默认png
    let imgType = imgtype? imgtype: "png"
    let element = document.getElementById(el)
   html2Canvas(element, {
    allowTaint: true
   }).then(function (canvas) {
    let contentWidth = canvas.width;
    let contentHeight = canvas.height;
    let pageHeight = contentWidth / 592.28 * 841.89;
    let leftHeight = contentHeight;
    let position = 0;
    let imgWidth = 595.28;
    let imgHeight = 592.28 / contentWidth * contentHeight;
    let pageData = canvas.toDataURL('image/' + imgType.toLowerCase(), 1.0);
    let PDF = new JsPDF('', 'pt', 'a4');
    if (leftHeight < pageHeight) {
     PDF.addImage(pageData, imgType.toUpperCase(), 0, 0, imgWidth, imgHeight);
    } else {
     while (leftHeight > 0) {
      PDF.addImage(pageData, imgType.toUpperCase(), 0, position, imgWidth, imgHeight);
      leftHeight -= pageHeight;
      position -= 841.89;
      if (leftHeight > 0) {
       PDF.addPage();
      }
     }
    }
    PDF.save(title + '.pdf');
   })
  }
 }
}

main.js

import htmlToPdf from './utils/exportPDF.js'
Vue.use(htmlToPdf)

使用

<div id="HealthComparison">
  
</div>
<el-button size="small" type="primary" @click="exportPdfHandler('需要导出内容的id','文件名称')">导出</el-button>