vue3 export excel file

1. First import the required dependency packages (the following are the corresponding versions I use)

npm install --save xlsx@0.17.3
npm install --save file-saver@2.0.5

2. Import in the required file (I put the file in excel.js under utils, and put the download link at the bottom, no points are required)

// 导出按钮
<el-button native-type="submit" type="primary" @click="exportExcel()">
   导出
</el-button>

// 引入到文件来
import {
    
     export_json_to_excel } from '@/utils/excel'

// 使用方法
const exportExcel = async () => {
    
    
  let params = {
    
     } // 接口请求的参数
  let data = [] // 用于接受接口返回的数据
  await getList(params).then((res) => {
    
     // 调用接口
    data = state.tableData = res.data.list
  })
  const tHeader = [
    'ID',
    '用户昵称',
    '手机号',
  ]
  const headersRelations = {
    
    
    ID: 'id',
    用户昵称: 'name',
    手机号: 'mobile',
  }
  const resArr = formatFn(data, tHeader, headersRelations)
  let dataExcel = {
    
    
    header: tHeader,
    data: resArr,
    filename: '消息推送',
  }
  export_json_to_excel(dataExcel)
}

const formatFn = (list, tHeader, headersRelations) => {
    
     // 把对象数组转换成二维数组
  const oneArr = []

  // 遍历对象
  list.forEach((item) => {
    
    
    const twoArr = []

    tHeader.forEach((key) => {
    
    
      const englishkey = headersRelations[key]
      let value = item[englishkey]
      twoArr.push(value)
    })

    oneArr.push(twoArr)
  })
  return oneArr
}

Download file address: excel.js