127 lines
4.7 KiB
TypeScript
127 lines
4.7 KiB
TypeScript
import axios from 'axios';
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import FileSaver from 'file-saver';
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import errorCode from '@/utils/errorCode';
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import { blobValidate } from '@/utils/ruoyi';
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import { LoadingInstance } from 'element-plus/es/components/loading/src/loading.mjs';
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import { globalHeaders } from '@/utils/request';
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import { getFileDownloadUrl } from '@/api/system/file';
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import request from '@/utils/request';
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const baseURL = import.meta.env.VITE_APP_BASE_API;
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let downloadLoadingInstance: LoadingInstance;
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export default {
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async oss(ossId: string | number) {
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downloadLoadingInstance = ElLoading.service({ text: '正在获取文件访问链接，请稍候', background: 'rgba(0, 0, 0, 0.7)' });
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try {
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// 使用新的安全下载方法，避免Number()转换导致的大整数精度丢失
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// const { data: downloadUrl } = await getFileDownloadUrl(String(ossId));
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const response = await request({
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url: '/resource/oss/download/' + ossId,
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method: 'get',
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responseType: 'blob',
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timeout: 300000 // 300秒超时
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});
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// 由于axios响应拦截器对blob类型响应直接返回blob数据
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// 这里response直接就是blob对象，而不是包含data属性的响应对象
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const blob = response;
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// 验证响应数据
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if (!blob) {
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throw new Error('响应数据为空');
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}
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const filename = response.headers.get('content-disposition')?.split('filename=')[1]?.replace(/"/g, '') || `file_${ossId}`;
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FileSaver.saveAs(blob, decodeURIComponent(filename));
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downloadLoadingInstance.close();
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} catch (r) {
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console.error(r);
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ElMessage.error('下载文件出现错误，请联系管理员！');
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downloadLoadingInstance.close();
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}
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},
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// 新增：安全下载文件方法
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async secureOss(ossId: string | number, fileName?: string) {
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console.log(ossId, fileName);
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downloadLoadingInstance = ElLoading.service({ text: '正在获取文件访问链接，请稍候', background: 'rgba(0, 0, 0, 0.7)' });
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try {
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// 获取临时下载URL，避免Number()转换导致的大整数精度丢失
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// const { data: downloadUrl } = await getFileDownloadUrl(String(ossId));
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const response = await request({
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url: '/resource/oss/download/' + ossId,
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method: 'get',
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responseType: 'blob',
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timeout: 300000 // 300秒超时
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});
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// 由于axios响应拦截器对blob类型响应直接返回blob数据
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// 这里response直接就是blob对象，而不是包含data属性的响应对象
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const blob = response;
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// 验证响应数据
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if (!blob) {
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throw new Error('响应数据为空');
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}
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const finalFileName = fileName || response.headers.get('content-disposition')?.split('filename=')[1]?.replace(/"/g, '') || `file_${ossId}`;
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FileSaver.saveAs(blob, decodeURIComponent(finalFileName));
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downloadLoadingInstance.close();
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} catch (r) {
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console.error(r);
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ElMessage.error('下载文件出现错误，请联系管理员！');
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downloadLoadingInstance.close();
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}
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},
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async zip(url: string, name: string) {
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url = baseURL + url;
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downloadLoadingInstance = ElLoading.service({ text: '正在下载数据，请稍候', background: 'rgba(0, 0, 0, 0.7)' });
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try {
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const res = await axios({
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method: 'get',
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url: url,
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responseType: 'blob',
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timeout: 300000, // 300秒超时
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headers: globalHeaders()
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});
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const isBlob = blobValidate(res.data);
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if (isBlob) {
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const blob = new Blob([res.data], { type: 'application/zip' });
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FileSaver.saveAs(blob, name);
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} else {
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this.printErrMsg(res.data);
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}
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downloadLoadingInstance.close();
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} catch (r) {
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console.error(r);
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ElMessage.error('下载文件出现错误，请联系管理员！');
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downloadLoadingInstance.close();
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}
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},
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async excel(data: any, filename: string) {
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downloadLoadingInstance = ElLoading.service({ text: '正在下载数据，请稍候', background: 'rgba(0, 0, 0, 0.7)' });
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try {
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const isBlob = blobValidate(data);
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if (isBlob) {
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const blob = new Blob([data], { type: 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet' });
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FileSaver.saveAs(blob, filename);
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} else {
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this.printErrMsg(data);
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}
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downloadLoadingInstance.close();
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} catch (r) {
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console.error(r);
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ElMessage.error('下载文件出现错误，请联系管理员！');
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downloadLoadingInstance.close();
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}
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},
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async printErrMsg(data: any) {
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const resText = await data.text();
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const rspObj = JSON.parse(resText);
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const errMsg = errorCode[rspObj.code] || rspObj.msg || errorCode['default'];
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ElMessage.error(errMsg);
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}
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};
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