64 lines
2.0 KiB
TypeScript
64 lines
2.0 KiB
TypeScript
/**
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* 带鉴权下载二进制文件（Excel 等）。
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* 为何：window.open 带 token 遇 JSON 错误页难提示；统一走 fetch + blob。
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*/
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import { useGlobSetting } from '/@/hooks/setting';
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import { getToken } from '/@/utils/auth';
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export type AuthDownloadParams = Record<string, string | number | undefined | null>;
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/**
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* GET 下载附件并触发浏览器保存。
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* @param path 相对 API 路径，如 /inquiry/workOrder/view/export
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* @param params query 参数（空值跳过）
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* @param fallbackName 无 Content-Disposition 时的文件名
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*/
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export async function downloadAuthGet(
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path: string,
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params: AuthDownloadParams = {},
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fallbackName = 'download.bin',
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): Promise<void> {
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const glob = useGlobSetting();
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const base = (glob.apiUrl || '').replace(/\/$/, '');
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const qs = new URLSearchParams();
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Object.keys(params).forEach((k) => {
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const v = params[k];
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if (v === undefined || v === null || String(v).trim() === '') return;
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qs.set(k, String(v));
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});
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const url = `${base}${path}${qs.toString() ? `?${qs.toString()}` : ''}`;
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const token = getToken() || '';
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const res = await fetch(url, {
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method: 'GET',
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headers: {
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'X-Access-Token': String(token),
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},
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});
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const ctype = (res.headers.get('content-type') || '').toLowerCase();
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if (!res.ok || ctype.includes('application/json')) {
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let msg = `下载失败 HTTP ${res.status}`;
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try {
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const j = await res.json();
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if (j?.message) msg = String(j.message);
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} catch {
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/* ignore */
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}
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throw new Error(msg);
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}
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const blob = await res.blob();
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let name = fallbackName;
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const cd = res.headers.get('content-disposition') || '';
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const m = /filename\*=UTF-8''([^;]+)|filename=\"?([^\";]+)\"?/i.exec(cd);
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if (m) {
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name = decodeURIComponent((m[1] || m[2] || name).trim());
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}
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const href = URL.createObjectURL(blob);
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const a = document.createElement('a');
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a.href = href;
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a.download = name;
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document.body.appendChild(a);
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a.click();
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a.remove();
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URL.revokeObjectURL(href);
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}
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