修改提交考试后缓存接口拿不到id接口请求错误

src/pages/exam/examAnswer.vue

@@ -333,6 +333,7 @@ export default {
         })
     },
     getCache() {
+      if (this.$route.params.examId) {
         action.Exam.getCache(this.$route.params.examId)
           .then(res => {
             const data = JSON.parse(res.answer)
@@ -344,6 +345,7 @@ export default {
           .catch(err => {
             console.log(err)
           })
+      }
     },
     getSignStu() {
       this.questionParams.question.question_items.map((item, index) => {
@@ -433,10 +435,10 @@ export default {
     .left {
       flex: 1;
       padding: 10px 20px 0 53px;
-      &.hidden{
+      &.hidden {
         overflow: hidden;
       }
-      &.scroll{
+      &.scroll {
         overflow-y: scroll;
         scrollbar-width: none;
         &::-webkit-scrollbar {
@@ -449,10 +451,10 @@ export default {
       width: 220px;
       background: #fff;
       padding: 0 20px;
-      &.hidden{
+      &.hidden {
         overflow: hidden;
       }
-      &.scroll{
+      &.scroll {
         overflow-y: scroll;
         scrollbar-width: none;
         &::-webkit-scrollbar {

src/pages/login/confirmInfo.vue

 <template>
   <div class="confirm-mian">
     <div class="con-info" v-if="!isTreaty">
-      <div class="head">{{ examInfo.name }}</div>
+      <div class="head">{{ examInfo.name || '' }}</div>
       <div class="box">
         <div class="info-form">
           <div class="tit">基本信息确认</div>
@@ -45,7 +45,7 @@
       </div>
     </div>
     <div class="explain-box" v-if="isTreaty">
-      <div class="head">{{ examInfo.name }}</div>
+      <div class="head">{{ examInfo.name || '' }}</div>
       <div class="exp-text">
         <div class="t">
           <!-- <div class="fl">为保证本考试的公平性和严肃性，本次考试将会：</div> -->
@@ -74,7 +74,7 @@ export default {
   data() {
     return {
       sInfo: JSON.parse(window.localStorage.getItem('studentInfo')),
-      examInfo: JSON.parse(window.localStorage.getItem('examInfo')),
+      examInfo: JSON.parse(window.localStorage.getItem('examInfo')) || {},
       form: {
         educational_background: ''
       },