主要技術棧是Vue,兩個庫: html
html2canvas npm地址npm
jspdf canvas
具體實現代碼以下:iview
<template> <div class="priview_resume_container"> <div style="font-size: 16px" @click="getResume">點這裏下載 </div> </div> </template>
<script> export default { name: 'priviewResume', methods: { getResume() { this.commonUtils.generateResume( $('.priview_resume_container')[0], '測試' ) } }, components: {} } </script>
import html2canvas from 'html2canvas' import JsPDF from 'jspdf' export const generateResume = (el, name) => { html2canvas(el).then(canvas => { let contentWidth = canvas.width let contentHeight = canvas.height //一頁pdf顯示html頁面生成的canvas高度; let pageHeight = (contentWidth / 592.28) * 841.89 //未生成pdf的html頁面高度 let leftHeight = contentHeight //頁面偏移 let position = 0 //a4紙的尺寸[595.28,841.89],html頁面生成的canvas在pdf中圖片的寬高 let imgWidth = 595.28 let imgHeight = (592.28 / contentWidth) * contentHeight let pageData = canvas.toDataURL('image/jpeg', 1.0) let pdf = new JsPDF('', 'pt', 'a4') //有兩個高度須要區分,一個是html頁面的實際高度,和生成pdf的頁面高度(841.89) //當內容未超過pdf一頁顯示的範圍,無需分頁 if (leftHeight < pageHeight) { pdf.addImage(pageData, 'JPEG', 0, 0, imgWidth, imgHeight) } else { while (leftHeight > 0) { //arg3-->距離左邊距;arg4-->距離上邊距;arg5-->寬度;arg6-->高度 pdf.addImage(pageData, 'JPEG', 0, position, imgWidth, imgHeight) leftHeight -= pageHeight position -= 841.89 //避免添加空白頁 if (leftHeight > 0) { //添加新頁 pdf.addPage() } } } pdf.save(`${name}.pdf`) }) }
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