后端分页但是前端想要把所有数据取出来

 recursion(index, array) {
      if (index <= array) {
        // 发送请求
        var body = {
          plan_id: '1103765',
          page: index,
          count: 15
        }
        request({
          method: 'get',
          url: '/api/teacher2/getClassPlanInfo',
          params: body
        })
          .then(res => {
            return res.Content.Datas
          })
          .then(Datas => {
            console.log(Datas)
            this.downData.push(Datas)
            this.recursion(index + 1, array)
          })
          .catch(json => {
            console.log(json)
          })
      }
    },
    getTime() {
      const nowTime = moment().format('YYYY年MM月DD日 HH时mm分ss秒')
      this.fieldName = `teacher_data_${nowTime}.xls`
    },
    getTable() {
      this.getTime()
      this.ExcelList = []
      var flattened = this.downData.reduce(
        function(a, b) {
          return a.concat(b)
        },

        []
      )
      console.log(flattened, 'flattened')
      const table = flattened.map(item => {
        return {
          ...item,
          time: moment(parseInt(item.publish_time + '000')).format('YYYY-MM-DD HH:mm:ss')
        }
      })
      console.log(table)
      return (this.ExcelList = table)
    },