html转为pdf进行下载


1、添加两个模块html2canvas和jspdf
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(1)npm install --save html2canvas(将页面html转换成图片)
(2)npm install --save jspdf(将图片生成pdf)
2、创建一个htmlToPdf.js文件在指定位置.我个人习惯放在(‘src/components/utils/htmlToPdf.js’),内容如下
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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中使用我们定义的函数文件
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import htmlToPdf from '@/components/utils/htmlToPdf'  
Vue.use(htmlToPdf)
4、在页面中添加
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<div class="row" id="pdfDom">  
这里边的内容就是pdf的内容
</div>

<button type="button" @click="getPdf()">导出PDF</button>

data () {
return {
htmlTitle:"qwerdf"//这个是pdf文件的名字
}
}
5、外链

html2pdf:链接