33 lines
1.2 KiB
JavaScript
33 lines
1.2 KiB
JavaScript
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import { ElMessage, ElMessageBox } from "element-plus";
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import { getFileName, getFileSuffix, getFileUrl } from "../../utils/index.js";
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/**
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* @param {string} url - 文件的下载地址 URL
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* @param {string} [name] - 可选的文件名，不带后缀。若未提供，则从 URL 中提取文件名
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* @returns {Promise<void>} 无返回值，但会触发浏览器下载行为
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*/
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export default async function useDownloadFile(url, name) {
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if (!url) throw new Error("没有下载地址");
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await ElMessageBox.confirm("确定要下载此文件吗？", { type: "warning" });
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const FILE_URL = getFileUrl();
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if (name) {
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if (!getFileSuffix(url)) name = name + getFileSuffix(url);
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} else name = getFileName(url);
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fetch(url.indexOf(FILE_URL) === -1 ? FILE_URL + url : url)
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.then((res) => res.blob())
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.then((blob) => {
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const a = document.createElement("a");
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document.body.appendChild(a);
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a.style.display = "none";
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const url = window.URL.createObjectURL(blob);
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a.href = url;
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a.download = `${name}`;
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a.click();
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document.body.removeChild(a);
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window.URL.revokeObjectURL(url);
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})
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.catch(() => {
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ElMessage.error("下载失败");
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});
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}
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