update 登录页背景, 组织机构code非必填, dapper查询优化

Web/src/views/login/index.vue

@@ -1,5 +1,6 @@
 <template>
   <div class="yo-login">
+    <img :src="backgroundImage" />
     <div class="yo-login--placeholder">
       <container mode="container-sm">
         <a-form-model :model="form" @submit="handleSubmit" @submit.native.prevent>
@@ -52,6 +53,8 @@ import { doLogin } from '@/common/login';
 export default {
   data() {
     return {
+      backgroundImage: null,
+
       loading: false,
       form: {
         user: '',
@@ -63,6 +66,11 @@ export default {
       },
     };
   },
+
+  created() {
+    this.backgroundImage = require(`@/assets/image/login-bg-0${Math.floor(Math.random() * 4)}.jpg`);
+  },
+
   methods: {
     handleSubmit(e) {
       this.loading = true;