html 转pdf下载

原文链接 https://blog.csdn.net/weixin_34289454/article/details/88768689 下载pdf

导出的页面组件如下：

<template>
<div id="resumeId">
<resumeHtml ref="resume" @on-download="download"/>
</div>
</template>

1、导出html

方法：
1）获取要导出的组件页面的css把它设置成js变量一文本并通过export导出
2）获取要导出组件页面的html的dom标签代码，通过this.$refs.resume.$el.innerHTML获取，也可以通过document.getElementById('resumeId')获得
3）构造html页面，并使用createObjectURL构造一个文件流并下载，如下：

var a = document.createElement('a');
var url = window.URL.createObjectURL(new Blob([content],
{ type: (option.type || "text/plain") + ";charset=" + (option.encoding || 'utf-8') }));
a.href = url;
a.download = fileName || 'file';
a.click();
window.URL.revokeObjectURL(url);

具体代码如下：

import axios from 'axios'
import resumeHtml from './resume-html'
import writer from 'file-writer';
import {resumecss} from '@/assets/style/download/resume.css.js'
...
downloadHtml(name){
let html = this.getHtmlContent();
let s = writer(`${name}的简历.html`, html, 'utf-8');
console.log('s stream',s);
},
getHtmlContent(){
//获取html另外一种方式：this.$el.outerHTML
const template = this.$refs.resume.$el.innerHTML;
let html = `<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width,initial-scale=1.0">
<title>X-Find迅聘选才</title>
<link rel="stylesheet" href="https://cdn.bootcss.com/iview/2.14.0/styles/iview.css" />
<style>
${resumecss}
</style>
</head>
<body>
<div class="resume_preview_page" style="margin:0 auto;1200px">
${template}
</div>
</body>
</html>`;
return html;
}

导出的样式js文件：

export const resumecss =`
html,
body {
position: relative;
height: 100%;
}
.page_layout {
position: relative;
height: 100%;
display: flex;
& .layout_content {
flex-grow: 1;
display: flex;
flex-direction: column;
}
}
...

2、导出Word

方法：
1）使用上面构造好的html文本，以文件流的形式发送到后台，后台通过转换得到word流传给前端并下载

let url = `${this.$url}/uploadFile/uploadResume`;
let html = this.getHtmlContent();
// 构造blob文件流
let html_ = new Blob([html],{ "type" : "text/html;charset=utf-8" })
let formdata = new FormData();
formdata.append('file', html_, `sdf.html`);//sdf.html是设置文件名
axios({
method: 'post',
url: url,
data:formdata,
responseType:'blob',//这里如果不设置，下载会打不开文件
})
.then(res=>{
console.log('download res',res);
//通过后台返回的word文件流设置文件名并下载
var blob = new Blob([res.data], { type: 'application/vnd.openxmlformats-officedocument.wordprocessingml.document;charset=utf-8'}); //application/vnd.openxmlformats-officedocument.wordprocessingml.document这里表示doc类型
var downloadElement = document.createElement('a');
var href = window.URL.createObjectURL(blob); //创建下载的链接
downloadElement.href = href;
downloadElement.download ='s.doc'; //下载后文件名
document.body.appendChild(downloadElement);
downloadElement.click(); //点击下载
document.body.removeChild(downloadElement); //下载完成移除元素
window.URL.revokeObjectURL(href); //释放掉blob对象
})