fc7df95c1a
- axios 拦截器:blob 请求(导入/导出)在业务校验失败时后端返回的是 JSON(Content-Type: application/json),而 axios 在 responseType='blob' 下把响应体解析成 Blob,直接读 res.data.msg 取不到任何字段, status 退回 res.status、文案落到「系统错误」兜底,用户误以为系统崩溃。 现按 Content-Type 判断:JSON 才解析回对象,真·文件流保持原样不动。 - 统一提示出口 notifiedError():弹窗后给 Error 打 _notified 标记, 业务层据此避免同一条错误被弹两次。 - import-excel:拦截器已提示过的错误不再重复 $message.error; >500/网络异常等仍由 resolveErrorMessage 从 Blob 中取 msg 兜底。
169 lines
6.4 KiB
JavaScript
169 lines
6.4 KiB
JavaScript
import { importBlob } from '@/api/common';
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import { downloadXls } from '@/utils/util';
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import { ElLoading } from 'element-plus';
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import NProgress from 'nprogress';
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import 'nprogress/nprogress.css';
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const excelPattern = /\.(xls|xlsx)$/;
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const isExcelResponse = res => {
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const headers = res.headers || {};
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const contentType = String(headers['content-type'] || res.data?.type || '').toLowerCase();
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const contentDisposition = String(headers['content-disposition'] || '').toLowerCase();
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if (
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contentType.includes('application/vnd.ms-excel') ||
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contentType.includes('application/vnd.openxmlformats-officedocument.spreadsheetml.sheet')
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) {
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return true;
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}
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// 网关或对象存储可能将 Excel 流标记为二进制类型,此时通过下载文件名识别。
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return (
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contentType.includes('application/octet-stream') &&
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/\.(xls|xlsx)(?:["';]|$)/.test(contentDisposition)
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);
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};
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const parseBlobJson = async blob => {
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const text = await blob.text();
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return text ? JSON.parse(text) : {};
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};
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/**
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* 解析导入失败时的错误提示文案。
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*
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* 背景:导入接口统一用 `responseType: 'blob'` 请求,因此**非 2xx 响应体也是 Blob**。
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* axios 的错误分支不做解析,直接 reject,`error.message` 只有
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* 「Request failed with status code 400」这类通用文案(或全局兜底的「系统错误」),
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* 用户会误以为系统崩了——而后端其实已返回了明确的中文业务提示(如「导入数据不能为空」)。
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*
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* 这里补上这一步:从错误响应的 Blob 里取出后端 `msg`,取不到再退回通用文案。
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*/
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const resolveErrorMessage = async error => {
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const blob = error?.response?.data ?? error?.data;
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if (blob instanceof Blob) {
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try {
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const result = await parseBlobJson(blob);
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if (result?.msg) return result.msg;
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} catch (ignored) {
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// 响应体不是 JSON(如网关返回的 HTML 错误页),退回通用文案
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}
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}
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const fallback = error?.response?.data?.msg || error?.message;
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// axios 的英文通用文案对用户没有意义,统一换成中文提示
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if (!fallback || /Request failed with status code/i.test(fallback)) {
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return '导入失败,请检查导入文件后重试';
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}
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return fallback;
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};
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/**
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* 加工后端返回的导入失败明细 Excel。
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* 若传入 failDetailDecorator(函数),则动态加载 exceljs 读取 blob 流,
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* 交由 decorator 完成改写原因列、调整列宽等加工,再导出新的 blob;
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* 否则原样返回 blob(保持旧行为,不影响未使用 decorator 的模块)。
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* @param {Blob} blob 后端返回的失败明细 Excel 流
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* @param {String} businessName 业务名称(如「货物类型」)
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* @param {Function} [failDetailDecorator] async (workbook, { businessName }) => void
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* @returns {Promise<Blob>}
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*/
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const decorateFailExcel = async (blob, businessName, failDetailDecorator) => {
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if (typeof failDetailDecorator !== 'function') return blob;
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const ExcelJS = await import('exceljs');
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const buf = await blob.arrayBuffer();
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const workbook = new ExcelJS.Workbook();
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await workbook.xlsx.load(buf);
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await failDetailDecorator(workbook, { businessName });
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const out = await workbook.xlsx.writeBuffer();
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return new Blob([out], { type: 'application/vnd.ms-excel' });
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};
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/**
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* 打开导入弹窗
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* @param {Object} vm 组件实例
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* @param {String} businessName 业务名称,用于失败明细文件命名
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* @param {Function} [onSuccess] 导入成功回调
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* @param {Object} [options] 扩展项
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* @param {Function} [options.failDetailDecorator] 失败明细加工函数,用于对后端返回的失败 Excel 标红/改写原因
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* @param {Number} [options.timeout=60000] 导入请求超时时间(毫秒)
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*/
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export const openImportDialog = (vm, businessName, onSuccess, options = {}) => {
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const { failDetailDecorator, timeout = 60000 } = options;
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const excelOption = vm.excelOption || vm.excelOptionConfig;
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const column = vm.findColumn(excelOption?.column || [], 'excelFile');
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if (!column) {
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vm.$message.error('导入配置异常,请稍后重试');
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return;
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}
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column.httpRequest = (option, uploadColumn) =>
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handleImportExcel(vm, option, uploadColumn, businessName, onSuccess, {
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failDetailDecorator,
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timeout,
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});
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vm.excelBox = true;
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};
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export const handleImportExcel = async (vm, option, column, businessName, onSuccess, options = {}) => {
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const { failDetailDecorator, timeout = 60000 } = options;
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const file = option.file;
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const fileName = file && file.name ? file.name.toLowerCase() : '';
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if (!excelPattern.test(fileName)) {
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vm.$message.error('请上传 .xls,.xlsx 标准格式文件');
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if (typeof option.onError === 'function') {
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option.onError(new Error('请上传 .xls,.xlsx 标准格式文件'));
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}
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return;
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}
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NProgress.start();
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const loading = ElLoading.service({
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lock: true,
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text: '导入中',
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background: 'rgba(255, 255, 255, 0.7)',
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});
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try {
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const res = await importBlob(column.action, file, { timeout });
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if (isExcelResponse(res)) {
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const decorated = await decorateFailExcel(res.data, businessName, failDetailDecorator);
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downloadXls(
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decorated,
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`${businessName}导入失败明细${vm.$dayjs().format('YYYY-MM-DD HH:mm:ss')}.xlsx`
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);
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vm.$message.warning('部分数据导入失败,已下载失败明细');
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} else {
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const result = await parseBlobJson(res.data);
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if (result.code !== 200) {
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vm.$message.error(result.msg || '导入失败');
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if (typeof option.onError === 'function') {
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option.onError(new Error(result.msg || '导入失败'));
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}
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return;
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}
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vm.$message.success('导入完成');
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}
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vm.excelBox = false;
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vm.excelForm = {};
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if (typeof onSuccess === 'function') {
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onSuccess();
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} else if (typeof vm.onLoad === 'function') {
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vm.onLoad(vm.page, vm.query);
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} else if (typeof vm.initTree === 'function') {
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vm.initTree();
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}
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if (typeof option.onSuccess === 'function') {
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option.onSuccess(res);
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}
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} catch (error) {
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// 拦截器已提示过的错误(如后端 400 返回的业务提示)不再重复弹一次,
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// 只保留一次清晰的中文提示。
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if (!error?._notified) {
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vm.$message.error(await resolveErrorMessage(error));
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}
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if (typeof option.onError === 'function') {
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option.onError(error);
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}
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} finally {
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loading.close();
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NProgress.done();
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}
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};
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