没有菜单权限时，不报错

src/dashoo.cn/frontend_web/src/components/sidebar.vue

@@ -90,9 +90,10 @@ const MenuGetter = namespace('menu', Getter)
   },
   methods: {
     ...mapActions(['toggleMenu']),
-    toolfun_gettreejson(rows, idFieldName, pidFieldName, fileds) {
+    toolfun_gettreejson (rows, idFieldName, pidFieldName, fileds) {
       // 工具方法，将扁平数据转化成tree格式数据
-      function nodejsonexists(rows, ParentId) {
+      function nodejsonexists (rows, ParentId) {
+
         for (var i = 0; i < rows.length; i++) {
           if (rows[i][idFieldName] === ParentId) {
             return true
@@ -165,6 +166,9 @@ export default class Sidebar extends Vue {
   async beforeMount () {
     // 暂时从本地取菜单
     let {data: menus1} = await this.$axios.get('users/getusermoduletree')
+    if (!menus1) {
+      return false
+    }
     let menus = this.toolfun_gettreejson(menus1, 'id', 'pId', 'id,name,url,icon')
     if (menus[0].id == '30000000') {
       menus = menus[0].children