cnpm install xlsx

import * as XLSX from 'xlsx/xlsx.mjs'

<template>
  <div id="app">
    <h2>{{message}}</h2>
    <el-upload
    action
    accept = ".xlsx, .xls"
    :auto-upload="false"
    :show-file-list="false"
    :on-change="handle">
    <el-button type="primary">打開excel</el-button>
    </el-upload> 
  </div>
</template>
 
<script>
import * as XLSX from 'xlsx/xlsx.mjs'
export default {
  name: 'App',
  data(){
    return {
      message:' XLSX 的使用'
    }
  },
  methods:{
    readFile(file){//文件讀取
      return new Promise(resolve => {
        let reader = new FileReader();
        reader.readAsBinaryString(file);//以二進制的方式讀取
        reader.onload = ev =>{
          resolve(ev.target.result);
        }
      })
    },
   async handle(ev){
      let file = ev.raw;
      console.log(file)
      if(!file){
        console.log("文件打開失敗")
        return ;
      }else{
       let data = await this.readFile(file);
       let workbook = XLSX.read(data,{ type: "binary"});//解析二進制格式數(shù)據(jù)
       console.log('二進制數(shù)據(jù)的解析:')
       console.log(workbook)
       let worksheet = workbook.Sheets[workbook.SheetNames[0]];//獲取第一個Sheet
       let result = XLSX.utils.sheet_to_json(worksheet);//json數(shù)據(jù)格式
       console.log('最終解析的 json 格式數(shù)據(jù):')
       console.log(result)
      }
    }
  }
}
</script>
 
<style>
 
</style>