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多文件需要一次性下载为zip文件

这是近期遇到的一个需求，本身是多文件上传的，下载时单个下载太慢又繁杂，用户希望能一次性批量下载，就选择了jszip

import axios from "axios"
import JSZip from "jszip"
import FileSaver from "file-saver"const getFile = url => {return new Promise((resolve, reject) => {axios({headers: {'Cache-control': 'no-cache'},method: "get",url,responseType: "arraybuffer"}).then(data => {resolve(data.data)}).catch(error => {reject(error)})})
}const downloadFromAliOss = function (fileArr, zipName) {const zip = new JSZip()const promises = []fileArr.forEach(item => {const promise = getFile(item.url).then(data => {const url = new URL(item.url)// 获取文件类型// const type = url.pathname.split('.').pop() // 'jpg'// const typeArr = item.url.split(".")// const type = typeArr[typeArr.length - 1]// 默认文件名·// const nameArr = item.url.split("/")const name = item.name || url.pathname.split('/').pop()// const foldPath = item.foldPath || ""zip.file(name, data, {binary: true})})promises.push(promise)})Promise.all(promises).then(() => {zip.generateAsync({ type: "blob" }).then(content => {FileSaver.saveAs(content, zipName || `文件.zip`)})})
}export default downloadFromAliOss

调用

downloadalioss(signedFileList, '附件.zip')