一、添加模块
npm install --save html2canvas(将页面html转化成图片)
npm install jspdf --save(将图片转换成pdf)
二、定义全局函数..创建一个htmlToPdf.js文件在指定位置.我个人习惯放在('src/utils/htmlToPdf')
// 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 = 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')
}
)
}
}
三、在main.js中使用我们定义的函数文件
import htmlToPdf from '@/components/utils/htmlToPdf'
Vue.use(htmlToPdf)
四、在需要的导出的页面..调用我们的getPdf方法即可.
<el-button @click="getPdf">导出PDF文件</el-button>
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