Luckysheet是一款非常强大的在线excel，配置简单而且完全开源，而且有很多社区解决方案

官方文档地址：Luckysheet文档

要使用Luckysheet，首先引入：

1、在这个网站拉取源码Luckysheet: 🚀Luckysheet ，一款纯前端类似excel的在线表格，功能强大、配置简单、完全开源。

 2、执行 npm install 下载依赖

3、执行  npm run build 进行打包

4、把打包好的dist文件放在自己项目的public文件夹下

5、在根目录的html文件添加以下代码

    <link rel='stylesheet' href='/dist/plugins/css/pluginsCss.css' />
    <link rel='stylesheet' href='/dist/plugins/plugins.css' />
    <link rel='stylesheet' href='/dist/css/luckysheet.css' />
    <link rel='stylesheet' href='/dist/assets/iconfont/iconfont.css' />
    <script src="/dist/plugins/js/plugin.js"></script>
    <script src="/dist/luckysheet.umd.js"></script>

 ok，基本工作已经完成！

5、封装 Luckysheet 组件，在components文件夹下新建Luckysheet文件

<template>
  <div class="box">
    <div id="luckysheet"></div>
  </div>
</template>

<script setup lang="ts">
import { exportExcel } from "./export";
import LuckyExcel from 'luckyexcel'
import { Message } from "@arco-design/web-vue";

// 配置项
const options = {
  container: 'luckysheet', // 设定DOM容器的id
  title: 'luckysheet', // 设定表格名称
  lang: 'zh', // 设定表格语言
  data:[{
    name:'Sheet1'
  }]
}
const initLuckysheet = () =>{
  luckysheet.destroy()
  luckysheet.create(options);
}
nextTick(() => {
  // 初始化表格
  initLuckysheet()
})
// 获取file
const downloadExcel = async() => {
  const data = luckysheet.getluckysheetfile()
  const luckysheetName  = luckysheet.getWorkbookName()
  const exportData = await exportExcel(data)
  const blob = new Blob([exportData])
  const file = new File([blob], luckysheetName + '.xlsx', { 
  type: 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet' })
  return file
}

const jsonData = ref({})
// 加载excel
const loadExcel = (evt:any) => {
  // const files = evt.target.files
  const files = evt
  console.log();
  
  if (files == null || files.length == 0) {
    Message.error('No files wait for import')
    return
  }

  let name = files.name
  let suffixArr = name.split('.'),
    suffix = suffixArr[suffixArr.length - 1]
  if (suffix != 'xlsx') {
    Message.error('当前仅支持xlsx文件')
    throw new Error("当前仅支持xlsx文件");
    return
  }
  LuckyExcel.transformExcelToLucky(files, function (exportJson:any, luckysheetfile:any) {
    if (exportJson.sheets == null || exportJson.sheets.length == 0) {
      Message.error('无法读取excel文件的内容，目前不支持xls文件！')
      return
    }
    console.log('exportJson', exportJson)
    jsonData.value = exportJson

    luckysheet.destroy()

    luckysheet.create({
      container: 'luckysheet', //luckysheet is the container id
      // showinfobar: false,
      data: exportJson.sheets,
      lang: 'zh', // 设定表格语言
      title: exportJson.info.name,
      userInfo: exportJson.info.name.creator
    })
  })
}

defineExpose({
  downloadExcel,
  loadExcel
})

</script>

<style scoped lang="less">
.download{
  position: absolute;
  z-index: 99;
  left: 10px;
}
#luckysheet {
  margin: 0px;
  padding: 0px;
  position: absolute;
  width: 100%;
  left: 0px;
  top: 0;
  bottom: 0px;
  ::v-deep(.luckysheet_info_detail_back){
    display: none !important;
  }
  ::v-deep(.luckysheet-share-logo){
    display: none !important;
  }
}

</style>

代码解释：

• 首先在template里面写的<div id="luckysheet"></div>是luckysheet挂载的dom节点

• options是表格的配置项，具体的配置可以参考官网，我觉得这样就够了

• 这里面有两个方法，downloadExcel是获取luckysheet文件内容，转换成excel文件

• loadExcel方法是把后端传过来的excel文件转换成luckysheet文件，回显上去

然后安装所需依赖：npm install exceljs -S 和 npm install luckyexcel -S

然后再luckysheet文件平级新建 export.js,代码如下：

// import { createCellPos } from './translateNumToLetter'
import Excel from 'exceljs'

import FileSaver from 'file-saver'

const exportExcel = function(luckysheet, value) {
  // 参数为luckysheet.getluckysheetfile()获取的对象
  // 1.创建工作簿，可以为工作簿添加属性
  const workbook = new Excel.Workbook()
  // 2.创建表格，第二个参数可以配置创建什么样的工作表
  if (Object.prototype.toString.call(luckysheet) === '[object Object]') {
    luckysheet = [luckysheet]
  }
  luckysheet.forEach(function(table) {
    if (table.data.length === 0) return  true
    // ws.getCell('B2').fill = fills.
    const worksheet = workbook.addWorksheet(table.name)
    const merge = (table.config && table.config.merge) || {}
    const borderInfo = (table.config && table.config.borderInfo) || {}
    // 3.设置单元格合并,设置单元格边框,设置单元格样式,设置值
    setStyleAndValue(table.data, worksheet)
    setMerge(merge, worksheet)
    setBorder(borderInfo, worksheet)
    return true
  })

  // return
  // 4.写入 buffer
  const buffer = workbook.xlsx.writeBuffer().then(data => {
    // console.log('data', data)
    const blob = new Blob([data], {
      type: 'application/vnd.ms-excel;charset=utf-8'
    })
    console.log("导出成功！")
    //如果要下载，就放开下面这句话，然后改luckysheet的对应方法
    // FileSaver.saveAs(blob, `${value}.xlsx`)
  })
  return buffer
}

var setMerge = function(luckyMerge = {}, worksheet) {
  const mergearr = Object.values(luckyMerge)
  mergearr.forEach(function(elem) {
    // elem格式：{r: 0, c: 0, rs: 1, cs: 2}
    // 按开始行，开始列，结束行，结束列合并（相当于 K10:M12）
    worksheet.mergeCells(
      elem.r + 1,
      elem.c + 1,
      elem.r + elem.rs,
      elem.c + elem.cs
    )
  })
}

var setBorder = function(luckyBorderInfo, worksheet) {
  if (!Array.isArray(luckyBorderInfo)) return
  // console.log('luckyBorderInfo', luckyBorderInfo)
  luckyBorderInfo.forEach(function(elem) {
    // 现在只兼容到borderType 为range的情况
    // console.log('ele', elem)
    if (elem.rangeType === 'range') {
      let border = borderConvert(elem.borderType, elem.style, elem.color)
      let rang = elem.range[0]
      // console.log('range', rang)
      let row = rang.row
      let column = rang.column
      for (let i = row[0] + 1; i < row[1] + 2; i++) {
        for (let y = column[0] + 1; y < column[1] + 2; y++) {
          worksheet.getCell(i, y).border = border
        }
      }
    }
    if (elem.rangeType === 'cell') {
      // col_index: 2
      // row_index: 1
      // b: {
      //   color: '#d0d4e3'
      //   style: 1
      // }
      const { col_index, row_index } = elem.value
      const borderData = Object.assign({}, elem.value)
      delete borderData.col_index
      delete borderData.row_index
      let border = addborderToCell(borderData, row_index, col_index)
      // console.log('bordre', border, borderData)
      worksheet.getCell(row_index + 1, col_index + 1).border = border
    }
    // console.log(rang.column_focus + 1, rang.row_focus + 1)
    // worksheet.getCell(rang.row_focus + 1, rang.column_focus + 1).border = border
  })
}
var setStyleAndValue = function(cellArr, worksheet) {
  if (!Array.isArray(cellArr)) return
  cellArr.forEach(function(row, rowid) {
    row.every(function(cell, columnid) {
      if (!cell) return true
      let fill = fillConvert(cell.bg)

      let font = fontConvert(
        cell.ff,
        cell.fc,
        cell.bl,
        cell.it,
        cell.fs,
        cell.cl,
        cell.ul
      )
      let alignment = alignmentConvert(cell.vt, cell.ht, cell.tb, cell.tr)
      let value = ''

      if (cell.f) {
        value = { formula: cell.f, result: cell.v }
      } else if (!cell.v && cell.ct && cell.ct.s) {
        // xls转为xlsx之后，内部存在不同的格式，都会进到富文本里，即值不存在与cell.v，而是存在于cell.ct.s之后
        // value = cell.ct.s[0].v
        cell.ct.s.forEach(arr => {
          value += arr.v
        })
      } else {
        value = cell.v
      }
      //  style 填入到_value中可以实现填充色
      let letter = createCellPos(columnid)
      let target = worksheet.getCell(letter + (rowid + 1))
      // console.log('1233', letter + (rowid + 1))
      for (const key in fill) {
        target.fill = fill
        break
      }
      target.font = font
      target.alignment = alignment
      target.value = value

      return true
    })
  })
}

var fillConvert = function(bg) {
  if (!bg) {
    return {}
  }
  // const bgc = bg.replace('#', '')
  let fill = {
    type: 'pattern',
    pattern: 'solid',
    fgColor: { argb: bg.replace('#', '') }
  }
  return fill
}

var fontConvert = function(
  ff = 0,
  fc = '#000000',
  bl = 0,
  it = 0,
  fs = 10,
  cl = 0,
  ul = 0
) {
  // luckysheet：ff(样式), fc(颜色), bl(粗体), it(斜体), fs(大小), cl(删除线), ul(下划线)
  const luckyToExcel = {
    0: '微软雅黑',
    1: '宋体（Song）',
    2: '黑体（ST Heiti）',
    3: '楷体（ST Kaiti）',
    4: '仿宋（ST FangSong）',
    5: '新宋体（ST Song）',
    6: '华文新魏',
    7: '华文行楷',
    8: '华文隶书',
    9: 'Arial',
    10: 'Times New Roman ',
    11: 'Tahoma ',
    12: 'Verdana',
    num2bl: function(num) {
      return num === 0 ? false : true
    }
  }
  // 出现Bug，导入的时候ff为luckyToExcel的val

  let font = {
    name: typeof ff === 'number' ? luckyToExcel[ff] : ff,
    family: 1,
    size: fs,
    color: { argb: fc.replace('#', '') },
    bold: luckyToExcel.num2bl(bl),
    italic: luckyToExcel.num2bl(it),
    underline: luckyToExcel.num2bl(ul),
    strike: luckyToExcel.num2bl(cl)
  }

  return font
}

var alignmentConvert = function(
  vt = 'default',
  ht = 'default',
  tb = 'default',
  tr = 'default'
) {
  // luckysheet:vt(垂直), ht(水平), tb(换行), tr(旋转)
  const luckyToExcel = {
    vertical: {
      0: 'middle',
      1: 'top',
      2: 'bottom',
      default: 'top'
    },
    horizontal: {
      0: 'center',
      1: 'left',
      2: 'right',
      default: 'left'
    },
    wrapText: {
      0: false,
      1: false,
      2: true,
      default: false
    },
    textRotation: {
      0: 0,
      1: 45,
      2: -45,
      3: 'vertical',
      4: 90,
      5: -90,
      default: 0
    }
  }

  let alignment = {
    vertical: luckyToExcel.vertical[vt],
    horizontal: luckyToExcel.horizontal[ht],
    wrapText: luckyToExcel.wrapText[tb],
    textRotation: luckyToExcel.textRotation[tr]
  }
  return alignment
}

var borderConvert = function(borderType, style = 1, color = '#000') {
  // 对应luckysheet的config中borderinfo的的参数
  if (!borderType) {
    return {}
  }
  const luckyToExcel = {
    type: {
      'border-all': 'all',
      'border-top': 'top',
      'border-right': 'right',
      'border-bottom': 'bottom',
      'border-left': 'left'
    },
    style: {
      0: 'none',
      1: 'thin',
      2: 'hair',
      3: 'dotted',
      4: 'dashDot', // 'Dashed',
      5: 'dashDot',
      6: 'dashDotDot',
      7: 'double',
      8: 'medium',
      9: 'mediumDashed',
      10: 'mediumDashDot',
      11: 'mediumDashDotDot',
      12: 'slantDashDot',
      13: 'thick'
    }
  }
  let template = {
    style: luckyToExcel.style[style],
    color: { argb: color.replace('#', '') }
  }
  let border = {}
  if (luckyToExcel.type[borderType] === 'all') {
    border['top'] = template
    border['right'] = template
    border['bottom'] = template
    border['left'] = template
  } else {
    border[luckyToExcel.type[borderType]] = template
  }
  // console.log('border', border)
  return border
}

function addborderToCell(borders, row_index, col_index) {
  let border = {}
  const luckyExcel = {
    type: {
      l: 'left',
      r: 'right',
      b: 'bottom',
      t: 'top'
    },
    style: {
      0: 'none',
      1: 'thin',
      2: 'hair',
      3: 'dotted',
      4: 'dashDot', // 'Dashed',
      5: 'dashDot',
      6: 'dashDotDot',
      7: 'double',
      8: 'medium',
      9: 'mediumDashed',
      10: 'mediumDashDot',
      11: 'mediumDashDotDot',
      12: 'slantDashDot',
      13: 'thick'
    }
  }
  // console.log('borders', borders)
  for (const bor in borders) {
    // console.log(bor)
    if (borders[bor].color.indexOf('rgb') === -1) {
      border[luckyExcel.type[bor]] = {
        style: luckyExcel.style[borders[bor].style],
        color: { argb: borders[bor].color.replace('#', '') }
      }
    } else {
      border[luckyExcel.type[bor]] = {
        style: luckyExcel.style[borders[bor].style],
        color: { argb: borders[bor].color }
      }
    }
  }

  return border
}

function createCellPos(n) {
  let ordA = 'A'.charCodeAt(0)

  let ordZ = 'Z'.charCodeAt(0)
  let len = ordZ - ordA + 1
  let s = ''
  while (n >= 0) {
    s = String.fromCharCode((n % len) + ordA) + s

    n = Math.floor(n / len) - 1
  }
  return s
}

export {
  exportExcel
}

然后就可以在页面中引入了：

<Luckysheet ref="luckysheetRef"></Luckysheet>

//js
const luckysheetRef = ref()

const handleConfirm = () => {
  // 获取文件
  luckysheetRef.value.downloadExcel().then((res:any)=>{
    console.log(res); //这就是file文件，可以在这里传给后端
    
  })
}

//回显，我这里是弹窗打开的时候就调接口，把获取到的文件传给luckysheet定义的方法
//blob文件，先转成file文件
  var file1 = new File([blob], name, {
        type: 'application/json',
        lastModified: Date.now()
    });
  nextTick(()=>{
    try {
      luckysheetRef.value.loadExcel(file1)
    } catch (error) {
      state.fillVisible = false
    }
  })   

这就大功告成了，有什么问题，欢迎留言