vue实现网页导出pdf

1，npm安装html2Canvas，JsPDF

npm install html2canvas

npm install jspdf

　　

2，新建工具类htmlToPdf.js

// 导出页面为PDF格式
import html2Canvas from 'html2canvas'
import JsPDF from 'jspdf'
export default{
  install (Vue, options) {
    Vue.prototype.getPdf = function () {
      var title = "事故报告"
      html2Canvas(document.querySelector('#pdfDom'), {
        allowTaint: true,
        useCORS: 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/jpeg', 1.0)
        console.log("pageData", pageData)
        let PDF = new JsPDF('', 'pt', 'a4')
        if (leftHeight < pageHeight) {
          PDF.addImage(pageData, 'JPEG', 0, 0, imgWidth, imgHeight)
        } else {
          while (leftHeight > 0) {
            PDF.addImage(pageData, 'JPEG', 0, position, imgWidth, imgHeight)
            leftHeight -= pageHeight
            position -= 841.89
            if (leftHeight > 0) {
              PDF.addPage()
            }
          }
        }
        PDF.save(title + '.pdf')
      }
      )
    }
  }
}

3，main.js引入

import htmlToPdf from '../src/assets/js/htmlToPdf'

// 使用转换pdf的js
Vue.use(htmlToPdf)

4，使用（注意id="pdfDom",一定要和工具类里面写的id一样才可以）

<button @click="getPdf()">导出</button>

<div id="pdfDom">
pdf导出内容XXXXXXXXXXXXXXX
</div>