Vue html导出到pdf

水深无声 2023-10-04 18:43 2阅读 0赞

## 1.npm下载jspdf ##

npm install html2canvas jspdf --save

## 2.创建一个htmlToPdf.js文件，输入以下内容 ##

import html2Canvas from 'html2canvas'
    import JsPDF from 'jspdf'
    export default{
        
        install (Vue, options) {
        
            Vue.prototype.getPdf = function () {
        
                var title = this.htmlTitle
                html2Canvas(document.querySelector('#pdfDom'), {
        
                    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/jpeg', 1.0)
                        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.在main.js中挂在方法。 ##

import htmlToPdf from "@/utils/htmlToPdf";
    Vue.use(htmlToPdf)

## 4.使用 ##

<template>
    <div>
      <div id="pdfDom">
        <div  >
          <table>
            <tr v-for="(tr,index) in 10" :key="index">
              <td v-for="(td,cindex) in 10" :key="cindex">
                行{
        {
        tr}}列{
        {
        td}}
              </td>
            </tr>
          </table>
        </div>
      </div>
      <el-button  @click="getPdf('#pdfDom')" size="mini" class="margin-3 width-80" plain>导出</el-button>
    </div>
    </template>
    
    <script>
    export default {
        
      name: "HtmlTestPdf",
      data() {
        
        return {
        
          pageData:null,  //接收html格式代码
          htmlTitle: '导出PDF的标题',
        }
      }
    }
    </script>
    
    <style scoped>
    
    </style>