vue-json数据导出Excel

1、安装依赖

npm i -S file-saver
npm i -S xlsx

2、在src目录下新建excel文件夹，新建file.js，并引入依赖

import { saveAs } from 'file-saver'
import XLSX from 'xlsx/dist/xlsx.full.min'

或者如下引入：

import XLSX from 'xlsx'
import { saveAs } from 'file-saver'

3、创建file.js文件内容

/**
 * fn 字符串转字符流
 * @param s
 * @returns {ArrayBuffer}
 */
function s2ab (s) {
  let buf = new ArrayBuffer(s.length)
  let view = new Uint8Array(buf)
  for (let i = 0; i !== s.length; ++i) {
    view[i] = s.charCodeAt(i) & 0xFF
  }
  return buf
}

function data2ws (data) {
  const ws = {}
  const range = {s: {c: 10000000, r: 10000000}, e: {c: 0, r: 0}}
  for (let R = 0; R !== data.length; ++R) {
    for (let C = 0; C !== data[R].length; ++C) {
      if (range.s.r > R) range.s.r = R
      if (range.s.c > C) range.s.c = C
      if (range.e.r < R) range.e.r = R
      if (range.e.c < C) range.e.c = C
      const cell = { v: data[R][C] }
      if (cell.v == null) continue
      const cellRef = XLSX.utils.encode_cell({c: C, r: R})
      if (typeof cell.v === 'number') cell.t = 'n'
      else if (typeof cell.v === 'boolean') cell.t = 'b'
      else if (cell.v instanceof Date) {
        cell.t = 'n'
        cell.z = XLSX.SSF._table[14]
        cell.v = datenum(cell.v)
      } else {
        cell.t = 's'
      }
      ws[cellRef] = cell
    }
  }
  if (range.s.c < 10000000) ws['!ref'] = XLSX.utils.encode_range(range)
  return ws
}

function Workbook () {
  if (!(this instanceof Workbook)) {
    return new Workbook()
  }
  this.SheetNames = []
  this.Sheets = {}
}

export default {
  /*
  * th => 表头
  * data => 数据
  * fileName => 文件名
  * fileType => 文件类型
  * sheetName => sheet页名
  */
  toExcel ({th, data, fileName, fileType, sheetName}) {
    data.unshift(th)
    const wb = new Workbook()
    const ws = data2ws(data)
    sheetName = sheetName || 'sheet1'
    wb.SheetNames.push(sheetName)
    wb.Sheets[sheetName] = ws
    fileType = fileType || 'xlsx'
    var wbout = XLSX.write(wb, {bookType: fileType, bookSST: false, type: 'binary'})
    fileName = fileName || '列表'
    saveAs(new Blob([s2ab(wbout)], {type: 'application/octet-stream'}), `${fileName}.${fileType}`)
  }
}

4、在组件中引入file.js

import toExcel from '@/excel/file'

5、在组件中调用toExcel方法导出excel

data() {
    return {
      excelData: [
        {
          name: '张三',
          birthday: new Date('1990-01-01'),
          sex: '男',
          age: 28
        },
        {
          name: '李四',
          birthday: new Date('1991-01-01'),
          sex: '女',
          age: 27
        }
      ]
    }
  },
  methods: {
    downExcel() {
      const th = ['姓名', '生日', '性别', '年龄']
      const filterVal = ['name', 'birthday', 'sex', 'age']
      const data = this.excelData.map(v => filterVal.map(k => v[k]))
      const [fileName, fileType, sheetName] = ['测试下载', 'xlsx', '测试页']
      this.$toExcel({th, data, fileName, fileType, sheetName})
    }
  }

拓展：

动态设置表头及过滤json数据项

原网址为：https://blog.csdn.net/qq_40099900/article/details/80931319