@ryanuo/utils
Version:
提供多种实用工具函数，涵盖算法、浏览器操作、网络请求等多个领域
35 lines (34 loc) • 1.38 kB
JavaScript
export async function downloadFile(url, fileName, options = {}) {
try {
const response = await fetch(url, options);
if (!response.ok)
throw new Error(`\u4E0B\u8F7D\u5931\u8D25: HTTP\u72B6\u6001\u7801 ${response.status} ${response.statusText}`);
if (!fileName) {
const contentDisposition = response.headers.get("content-disposition");
if (contentDisposition) {
const fileNameMatch = contentDisposition.match(/filename[^;=\n]*=((['"]).*?\2|[^;\n]*)/);
if (fileNameMatch && fileNameMatch[1])
fileName = fileNameMatch[1].replace(/['"]/g, "");
}
if (!fileName)
fileName = url.split("/").pop() || "downloaded-file";
}
const blob = await response.blob();
const downloadUrl = URL.createObjectURL(blob);
const link = document.createElement("a");
link.href = downloadUrl;
link.download = fileName;
document.body.appendChild(link);
link.click();
setTimeout(() => {
document.body.removeChild(link);
URL.revokeObjectURL(downloadUrl);
}, 100);
} catch (error) {
console.error("\u6587\u4EF6\u4E0B\u8F7D\u5931\u8D25:", error);
if (error instanceof Error)
throw new Error(`\u6587\u4EF6\u4E0B\u8F7D\u5931\u8D25: ${error.message}`);
else
throw new Error("\u6587\u4EF6\u4E0B\u8F7D\u5931\u8D25: \u53D1\u751F\u672A\u77E5\u9519\u8BEF");
}
}