fix: 修复导出json文件错误的问题

src/utils/download.ts

@@ -6,19 +6,27 @@ const downloadFile = (res: any, fileName: string = '导出日志.xlsx') => {
   // 判断是不是返回的是json，是json说明报错了，否则返回的是文本流
   const decoder = new TextDecoder('utf-8');
   const text = decoder.decode(res.data);
+  console.log(text)
 
   try {
     const errJson = JSON.parse(text)
     if (errJson.message) {
       ElMessage.closeAll()
       ElMessage.error(errJson.message)
+    } else {
+      // 可能是导出  json文件
+      beginDownload(res, fileName)
     }
   } catch {
-    // 用split是避免多次取值重复都好分割的情况，比如 
-    // attachment; filename="2022-12-06 21:34:35-SysLoginLog.xlsx", attachment; filename="2022-12-06 21:34:35-SysLoginLog.xlsx"
-    const lastFileName = res.headers['content-disposition'] ? res.headers['content-disposition'].split(',')[0].replaceAll('attachment; filename="', '').replaceAll('"', '') : fileName;
-    download(res.data, lastFileName, res.headers['content-type']);
+    beginDownload(res, fileName)
   }
 }
 
+function beginDownload(res: any, fileName: string) {
+  // 用split是避免多次取值重复都好分割的情况，比如 
+  // attachment; filename="2022-12-06 21:34:35-SysLoginLog.xlsx", attachment; filename="2022-12-06 21:34:35-SysLoginLog.xlsx"
+  const lastFileName = res.headers['content-disposition'] ? res.headers['content-disposition'].split(',')[0].replaceAll('attachment; filename="', '').replaceAll('"', '') : fileName;
+  download(res.data, lastFileName, res.headers['content-type']);
+}
+
 export default downloadFile