H5 mobile terminal attachment download

Table of contents

H5 mobile terminal attachment download

1. Use window.open() to download

2. Use the a tag to create a hidden downloadable link

3. Download using iframe

4. Use the FileSaver.js plugin to download

4.1 Import and use download attachments in Vue project

4.2 Other knowledge of FileSaver.js

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H5 mobile terminal attachment download

1. Use window.open() to download

window.open(file.fileUrl)

2. Use the a tag to create a hidden downloadable link

let ele = document.createElement('a')
ele.download = file.fileName
ele.style.display = 'none'
ele.href = file.fileUrl
document.body.appendChild(ele)
ele.click()
document.body.removeChild(ele)

3. Download using iframe

let myFrame = document.createElement('iframe')
myFrame.src = file.fileUrl
myFrame.style.display = 'none'
document.body.appendChild(myFrame)
window.open(file.fileUrl)

4. Use the FileSaver.js plugin to download

4.1 Import and use download attachments in Vue project

FileSaver.js plug-in portal: https://github.com/eligrey/FileSaver.js

# 下载安装 file-saver 插件
$ cnpm install file-saver --save

import { saveAs } from 'file-saver'
saveAs(fileUrl, fileName)

4.2 Other knowledge of FileSaver.js

Blob object concept: https://developer.mozilla.org/zh-CN/docs/Web/API/Blob

• save text

var FileSaver = require('file-saver');
var blob = new Blob(["Hello, world!"], {type: "text/plain;charset=utf-8"});
FileSaver.saveAs(blob, "hello world.txt");

• Save URLs

var FileSaver = require('file-saver');
FileSaver.saveAs("https://httpbin.org/image", "image.jpg");

• save as canvas

var FileSaver = require('file-saver');
var canvas = document.getElementById("my-canvas");
canvas.toBlob(function(blob) {
    saveAs(blob, "pretty image.png");
});

• save document

var FileSaver = require('file-saver');
var file = new File(["Hello, world!"], "hello world.txt", {type: "text/plain;charset=utf-8"});
FileSaver.saveAs(file);