解决vue 使用axios.all()方法发起多个请求控制台报错的问题

init () {
      util.axios.all([this.getCourseInit(), this.getConfirmInit()])
        .then(util.axios.spread((indexRes, confirmRes) => {
          // 两个请求现在都执行完成
          this.classData = indexRes.data.today_course.map(item => {
            item.time = timeUtil.formatDate2Str(item.start_time, 'HH:mm') + '~' + timeUtil.formatDate2Str(item.end_time, 'HH:mm');
            return item;
          });
          this.count.count_course_today = indexRes.data.count.count_course_today;
          this.count.count_student_not = indexRes.data.count.count_student_not;
          this.count.count_student_all = indexRes.data.count.count_student_all;
          this.count.count_teacher_all = indexRes.data.count.count_teacher_all;
 
          this.isLoading = false;
        }));
    },
    getCourseInit () {
      return util.axios.get('/index');
    },
    getConfirmInit () {
      return util.axios.get('/course-confirm');
    },

// 引入axios 
import axios from 'axios';
 
init () {
      axios.all([this.getCourseInit(), this.getConfirmInit()])
        .then(axios.spread((indexRes, confirmRes) => {
          // 两个请求现在都执行完成
          this.classData = indexRes.data.today_course.map(item => {
            item.time = timeUtil.formatDate2Str(item.start_time, 'HH:mm') + '~' + timeUtil.formatDate2Str(item.end_time, 'HH:mm');
            return item;
          });
          this.count.count_course_today = indexRes.data.count.count_course_today;
          this.count.count_student_not = indexRes.data.count.count_student_not;
          this.count.count_student_all = indexRes.data.count.count_student_all;
          this.count.count_teacher_all = indexRes.data.count.count_teacher_all;
 
          this.isLoading = false;
        }));
    },
    getCourseInit () {
      return util.axios.get('/index');
    },
    getConfirmInit () {
      return util.axios.get('/course-confirm');
    },