SZX-1335在线课考试显示不正常。

src/components/Course/courseExam.vue

@@ -167,7 +167,7 @@
   import simplePaper from "@/components/Course/simpleTestPaper.vue";
   import apiCourse from '../../api/modules/course.js';
   import apiExamPaper from '../../api/modules/paper.js';
-  import { deepClone } from "../../utils";
+  import { deepClone, safeJsonParse } from "../../utils";
   export default{
     components:{simplePaper},
     props:{
@@ -253,7 +253,7 @@
                  this.examInfo=res.result;
                  if(res.result.paperType==1){
                    this.examInfo.paperContent=res.result.paperContent;
-                   this.examPaper=JSON.parse(res.result.paperContent);
+                   this.examPaper = safeJsonParse(res.result.paperContent, { items: [] });
                  }else{
                    apiExamPaper.detail(this.examInfo.paperId).then(rs=>{
                      if(rs.status==200){

src/components/Course/exam.vue

@@ -132,6 +132,7 @@ import apiCourse from '@/api/modules/course.js';
 import apiExamPaper from '@/api/modules/paper.js';
 import {formatDate,formatSeconds} from '@/utils/datetime.js';
 import {testType,correctJudgment,numberToLetter} from '@/utils/tools.js';
+import { safeJsonParse } from '@/utils/index.js';
 export default {
   props:{
       studyId: {
@@ -217,7 +218,11 @@ export default {
            if(res.status==200){
                this.info=res.result;
                 if(this.showTest) {
-                      let paper= JSON.parse(this.info.paperContent);
+                      let paper = safeJsonParse(this.info.paperContent, { items: [] });
+                      if(!paper.items || paper.items.length === 0){
+                        this.viewTest = [];
+                        return;
+                      }
                       paper.items.forEach(item=>{
                         //console.log(item);
                         if(item.type==101){

src/components/Course/weikeContent.vue

@@ -575,7 +575,7 @@
   import apiExamPaper from '../../api/modules/paper.js';
   import audioPlayer from '@/components/AudioPlayer/index.vue';
   import {getType} from '../../utils/tools.js';
-  import { deepClone } from "../../utils";
+  import { deepClone, safeJsonParse } from "../../utils";
   export default{
     components:{WxEditor,simplePaper,FileUpload,pdfPreview,audioPlayer,chooseCourseFile},
     props: {
@@ -921,7 +921,7 @@
              if(res.status==200){
                  this.exam.info=res.result;
                  if(res.result.paperType==1){
-                   this.exam.paperJson=JSON.parse(res.result.paperContent);
+                   this.exam.paperJson = safeJsonParse(res.result.paperContent, { items: [] });
                  }else{
                    apiExamPaper.detail(this.exam.info.paperId).then(rs=>{
                      if(rs.status==200){

src/components/Exam/EditPaper.vue

@@ -109,6 +109,7 @@
   import imgupload from '@/components/ImageUpload/single.vue';
   import apiExamTask from '@/api/modules/examTask.js';
   import examQuestionApi from "@/api/modules/question";
+  import { safeJsonParse } from '../../utils';
   import {numberToLetter, deepCopy} from '../../utils/tools.js';
   export default {
     name: 'comEditPaper',
@@ -163,7 +164,7 @@
               if(res.status === 200) {
                   this.paper=res.result;
                   //转化试题
-                  this.qitems=JSON.parse(res.result.paperContent);
+                  this.qitems = safeJsonParse(res.result.paperContent, []);
                   //console.log(this.qitems,this.qitems)
                   this.tempItems=this.qitems;
                   this.paperCalculation();

src/utils/index.js

@@ -310,6 +310,42 @@ export function deepClone(source) {
     return targetObj
 }
 
+import { Message } from 'element-ui';
+
+/**
+ * 安全解析 JSON 字符串，统一处理错误日志和 UI 提示
+ * @param {string|object} text 待解析的字符串（或对象）
+ * @param {*} fallback 解析失败或为空时的回退值，默认为空对象 {}
+ * @param {string} errorMessage UI 提示信息，默认为试卷格式错误提示
+ * @returns {*} 
+ */
+export function safeJsonParse(text, fallback = {}, errorMessage = '试卷内容格式有误，请联系管理员检查试卷数据') {
+    // 1. 如果已经是对象或数组，直接返回
+    if (typeof text === 'object' && text !== null) {
+        return text;
+    }
+
+    // 2. 处理空值情况
+    if (text === null || text === undefined || text === '') {
+        return fallback;
+    }
+
+    // 3. 尝试解析
+    try {
+        return JSON.parse(text);
+    } catch (error) {
+        // 4. 统一日志和报错
+        console.error('JSON 解析失败:', {
+            input: text,
+            error: error.message
+        });
+        if (errorMessage) {
+            Message.error(errorMessage);
+        }
+        return fallback;
+    }
+}
+
 /**
  * @param {Array} arr
  * @returns {Array}

src/views/exam/TestPaper.vue

@@ -296,7 +296,7 @@
 import apiPaper from '@/api/modules/paper.js';
 import apiExamTask from '@/api/modules/examTask.js';
 import examQuestionApi from "@/api/modules/question";
-import { deepClone } from '../../utils';
+import { deepClone, safeJsonParse } from '../../utils';
 import {numberToLetter, deepCopy} from '../../utils/tools.js';
 import { mapGetters,mapActions} from 'vuex';
 import editPaper from "@/components/Exam/EditPaper";
@@ -689,7 +689,7 @@ export default {
 		this.viewVolumeShow=true;
      apiPaper.detail(row.id).then(res=>{
          if(res.status === 200) {
-            this.viewShowData = JSON.parse(res.result.paperContent);
+            this.viewShowData = safeJsonParse(res.result.paperContent, { items: [] });
             console.log(this.viewShowData,'lll')
         } else {
             this.$message.error(res.message);
@@ -720,8 +720,9 @@ export default {
       apiPaper.detail(row.id).then(res=>{
          if(res.status === 200) {
             this.paper = res.result;
-            this.paper.data = JSON.parse(res.result.paperContent);
+            const parsedValue = safeJsonParse(res.result.paperContent, []);
-            this.paperData = JSON.parse(res.result.paperContent);
+            this.paper.data = parsedValue;
+            this.paperData = parsedValue;
             this.paper.paperType = Number(res.result.paperType);
              if(res.result.resOwner3) {
                this.resOwner = [res.result.resOwner1,res.result.resOwner2,res.result.resOwner3];

src/views/portal/course/microPreview.vue

@@ -357,7 +357,7 @@ import apiCourse from "@/api/modules/course.js";
 import apiCourseFile from "@/api/modules/courseFile.js";
 import apiCoursePortal from "@/api/modules/coursePortal.js";
 import apiUser from '@/api/system/user.js';
-import {
+  import {
     formatDate,
     resListMap,
     toScore,
@@ -365,8 +365,9 @@ import {
     getType,
     numberToLetter,
     correctJudgment
-} from "@/utils/tools.js";
+  } from "@/utils/tools.js";
-import apicourseStudy from "@/api/modules/courseStudy.js";
+  import { safeJsonParse } from "@/utils";
+  import apicourseStudy from "@/api/modules/courseStudy.js";
 import apiCourseGrade from "@/api/modules/courseGrade.js";
 import apiPraises from "@/api/modules/praises.js";
 import apiTrample from "@/api/modules/trample.js";
@@ -716,7 +717,7 @@ export default {
       apiCourse.getExam(this.examInfo.content.id).then(res => {
         if (res.status == 200) {
           this.examInfo.info = res.result;
-          this.examInfo.paper = JSON.parse(res.result.paperContent);
+          this.examInfo.paper = safeJsonParse(res.result.paperContent, { items: [] });
         } else if (res.status == 404) {
           //没有找到考试信息
         } else {