const XLSX = require('xlsx')

//将行,列转换
function transformSheets(sheets) {
 var content = []
 var content1 = []
 var tmplist = []
 for (let key in sheets){
  //读出来的workbook数据很难读,转换为json格式,参考https://github.com/SheetJS/js-xlsx#utility-functions
  tmplist.push(XLSX.utils.sheet_to_json(sheets[key]).length)
  content1.push(XLSX.utils.sheet_to_json(sheets[key]))
 }
 var maxLength = Math.max.apply(Math, tmplist)
 //进行行列转换
 for (let y in [...Array(maxLength)]){
  content.push([])
  for (let x in [...Array(tmplist.length)]) {
   try {
    for (let z in content1[x][y]){
     content[y].push(content1[x][y][z])
    }
   } catch (error) {
    content[y].push(' ')
   }
  }
 }
 content.unshift([])
 for (let key in sheets){
  content[0].push(key)
 }
 return content

}

export {transformSheets as default}

<template>
 <div class="task-list">
  <p v-if="err!==''">{{err}}</p> <!-- 用来显示报错 -->
  <table style="margin:0 auto;" v-if="content!==''"> <!-- 设置居中,如果没获取到内容则不显示 -->
   <tr><th v-for="h in content[0]" :key="h.id">{{h}}</th></tr> <!-- 循环读取数据并显示 -->
   <tr v-for="row in content.slice(1,)" :key=row.id>
    <td v-for="item in row" :key=item.id>{{item}}</td>
   </tr>
  </table>
 </div>
</template>

<script>
import axios from 'axios'
import XLSX from 'xlsx'
import transformSheets from '../scripts/read_xlsx'  //导入转制函数

export default {
 name: 'TaskList',
 data: function () {
  return {
   content: '',  //初始化数据
   err: ''
  }
 },
 created() {
  var url = "/task_list.xlsx" //放在public目录下的文件可以直接访问
  
  //读取二进制excel文件,参考https://github.com/SheetJS/js-xlsx#utility-functions
  axios.get(url, {responseType:'arraybuffer'})
  .then((res) => {
    var data = new Uint8Array(res.data)
  var wb = XLSX.read(data, {type:"array"})
  var sheets = wb.Sheets
  this.content = transformSheets(sheets)
  }).catch( err =>{
   this.err = err
  })
 }
}

npm run build