feature: 加载文件接口添加loading

src/common/preview/index.js

@@ -5,7 +5,14 @@ import { onlyOfficeUrl,kkFileViewUrl } from '@/sysConfig'
 import { getBusStandFileByAttId } from 'api/process'
 let Base64 = require('js-base64').Base64;
 import store from '@/store'
+import { Loading  } from "element-ui";
+
 export default attId => {
+    const loading = Loading.service({
+        lock: true,
+        text: '正在加载文件',
+        spinner: 'el-icon-loading',
+    })
     getBusStandFileByAttId({
         attId
     }).then(res => {
@@ -22,6 +29,7 @@ export default attId => {
 
             }
         }
-    }).catch(e => {
+    }).finally(() => {
+        loading.close()
     })
 }