37 lines
1.3 KiB
JavaScript
37 lines
1.3 KiB
JavaScript
import streamSaver from "streamsaver";
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import "streamsaver/examples/zip-stream.js"
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export const downloadImage = (zipName, files) => {
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return new Promise((resolve) => {
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console.log("同步下载打包开始时间：" + new Date());
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// 创建压缩文件输出流
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const zipFileOutputStream = streamSaver.createWriteStream(zipName);
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// 创建下载文件流
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const fileIterator = files.values();
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const readableZipStream = new window.ZIP({
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async pull(ctrl) {
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const fileInfo = fileIterator.next();
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if (fileInfo.done) {//迭代终止
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ctrl.close();
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} else {
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const { name, url } = fileInfo.value;
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return fetch(url).then(res => {
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ctrl.enqueue({
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name,
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stream: () => res.body
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})
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})
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}
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}
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});
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if (window.WritableStream && readableZipStream.pipeTo) {
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// 开始下载
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readableZipStream
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.pipeTo(zipFileOutputStream)
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.then(() => { console.log("同步下载打包结束时间：" + new Date()); resolve(true) })
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} else {
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resolve(false);
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}
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})
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};
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