修改

src/utils/request.ts

@@ -176,36 +176,43 @@ service.interceptors.response.use(
     }
 );
 // 通用下载方法
-export function download(url: string, params: any, fileName: string) {
-    downloadLoadingInstance = ElLoading.service({ text: '正在下载数据，请稍候', background: 'rgba(0, 0, 0, 0.7)' });
+export function download(url: any, params = {}, fileName = '') {
+    downloadLoadingInstance = ElLoading.service({ text: '正在下载数据，请稍候', background: 'rgba(255, 255, 255, 0.8)' });
     // prettier-ignore
-    return service.post(url, params, {
-      transformRequest: [
-        (params: any) => {
-          return tansParams(params);
-        }
-      ],
-      headers: { 'Content-Type': 'application/x-www-form-urlencoded' },
-      responseType: 'blob'
-    }).then(async (res: any) => {
-      console.log();
-      const resp = res.data;
-      const isLogin = blobValidate(resp);
-      if (isLogin) {
-        const blob = new Blob([resp]);
-        FileSaver.saveAs(blob, fileName);
-      } else {
-        const resText = await resp.data.text();
-        const rspObj = JSON.parse(resText);
-        const errMsg = errorCode[rspObj.code] || rspObj.msg || errorCode['default'];
-        ElMessage.error(errMsg);
-      }
-      downloadLoadingInstance.close();
-    }).catch((r: any) => {
-      console.error(r);
-      ElMessage.error('下载文件出现错误，请联系管理员！');
-      downloadLoadingInstance.close();
-    });
+    const config: any = {}
+    config.headers = { 'Content-Type': 'application/x-www-form-urlencoded' };
+    config.responseType = 'blob';
+    return service
+        .get(url, config)
+        .then(async (resp: any) => {
+            const isLogin = blobValidate(resp.data);
+            if (isLogin) {
+                const blob = new Blob([resp.data]);
+                if (fileName) {
+                    console.log();
+                    FileSaver.saveAs(blob, fileName);
+                    Promise.resolve(true);
+                } else {
+                    const fileNameEncode = resp.headers['content-disposition'] && resp.headers['content-disposition'].split('filename=')[1].split(';')[0];
+                    const fileNameCur = fileNameEncode ? decodeURI(fileNameEncode).replaceAll('"', '') : url;
+                    FileSaver.saveAs(blob, fileNameCur);
+                    Promise.resolve(true);
+                }
+            } else {
+                const resText = await resp.data.data.text();
+                const rspObj = JSON.parse(resText);
+                const errMsg = errorCode[rspObj.code] || rspObj.msg || errorCode['default'];
+                ElMessage.error(errMsg);
+                Promise.reject('导出失败');
+            }
+            downloadLoadingInstance.close();
+        })
+        .catch((r: any) => {
+            console.error(r);
+            ElMessage.error('下载文件出现错误，请联系管理员！');
+            downloadLoadingInstance.close();
+            Promise.reject('导出失败');
+        });
 }
 // 通用下载方法
 export function downloadFile({ url, fileName = '', method = 'get', params = {}, data = {}, preview = false, headers = { 'Content-Type': 'application/x-www-form-urlencoded;charset=utf-8' }, text = '正在下载数据，请稍候' }: any) {