vue之Excel导出和导入

vue之Excel导出和导入
- Excel导入
- Excel导出
- Excel多级表头导出

vue之Excel导出和导入

Excel导入

注意：多级表头的Excel导出排版出现错乱

1、封装导入Excel组件

<template><div><inputtype="file"class="upFile"ref="fileExcel"accept=".xlsx, .xls"@change="uploadFile"/><el-button type="primary" @click="handleClick">导入</el-button></div>
</template><script>
import XLSX from 'xlsx'
export default {props: {breforeUpload: Function,onSuccess: Function},data() {return {excelList: {header: null,results: null}}},methods: {handleClick() {this.$refs.fileExcel.click()},generateData({ header, results }) {this.excelList.header = headerthis.excelList.results = resultsthis.onSuccess && this.onSuccess(this.excelList)},uploadFile(e) {const file = e.target.files[0]this.$refs.fileExcel.value = nullthis.readData(file)},readData(file) {return new Promise(resolve => {const readfile = new FileReader()readfile.onload = e => {const data = e.target.resultconst workbook = XLSX.read(data, { type: 'array' })const firstSheetName = workbook.SheetNames[0]const worksheet = workbook.Sheets[firstSheetName]const header = this.getHeaderRow(worksheet)const results = XLSX.utils.sheet_to_json(worksheet)this.generateData({ header, results })resolve()}readfile.readAsArrayBuffer(file)})},getHeaderRow(sheet) {const headers = []const range = XLSX.utils.decode_range(sheet['!ref'])let Cconst R = range.s.r/* start in the first row */for (C = range.s.c; C <= range.e.c; ++C) {/* walk every column in the range */const cell = sheet[XLSX.utils.encode_cell({ c: C, r: R })]/* find the cell in the first row */let hdr = 'UNKNOWN ' + C // <-- replace with your desired defaultif (cell && cell.t) hdr = XLSX.utils.format_cell(cell)headers.push(hdr)}return headers}}
}
</script>
<style lang="scss" scoped>
.upFile {display: none;
}
</style>

2、页面中使用

<template><div class="excelIn"><el-card><div slot="header"><span>导入表格</span></div><upload-excel :on-success="generateData"></upload-excel><el-table:data="tabList"borderstripestyle="width: 100%;margin-top: 30px;"><el-table-columnv-for="item in tabHeader":prop="item":key="item":label="item"></el-table-column></el-table></el-card></div>
</template><script>
import UploadExcel from '@/components/UploadExcel'
export default {data() {return {tabList: [],tabHeader: []}},methods: {generateData({ header, results }) {this.tabHeader = headerthis.tabList = results}},components: {UploadExcel}
}
</script>
<style></style>

3、效果如下

Excel导出

<template><div class="excelOut"><el-card><div slot="header"><span>导出表格</span></div><el-inputtype="text"v-model="filename"placeholder="输入导出的文件名称"clearableclass="wid300 mtrt20"></el-input><el-button type="primary" @click="excelDow" class="btnStyle1">导出</el-button><el-table:data="tabList"borderstripestyle="width: 100%;margin-top: 30px;"><el-table-column prop="id" label="序号" width="80"> </el-table-column><el-table-column prop="date" label="出生日期"> </el-table-column><el-table-column prop="name" label="姓名"> </el-table-column><el-table-column prop="sex" label="性别"> </el-table-column><el-table-column prop="position" label="职业"> </el-table-column><el-table-column prop="address" label="地址"> </el-table-column></el-table></el-card></div>
</template><script>
export default {name: 'excel-out',data() {return {tabList: [{id: 1,date: '1992-05-02',name: '王小虎',sex: '男',position: '医生',address: '上海市普陀区金沙江路 1518 弄'},{id: 2,date: '1999-05-04',name: '小明',sex: '男',position: '老师',address: '北京市朝阳区'},{id: 3,date: '1980-05-01',name: '小敏',sex: '女',position: '护士',address: '上海市浦东区 1519 弄'},{id: 4,date: '2016-05-03',name: '小黑',sex: '男',position: '学者',address: '上海市普陀区金沙江路 1516 弄'},{id: 5,date: '2016-05-03',name: '小虎',sex: '男',position: '运动员',address: '上海市普陀区金沙江路 1516 弄'},{id: 6,date: '2016-05-03',name: '小白',sex: '男',position: 'Java开发',address: '上海市普陀区金沙江路 1516 弄'},{id: 7,date: '2016-05-03',name: '小牛',sex: '男',position: '前端开发',address: '上海市普陀区金沙江路 1516 弄'},{id: 8,date: '2016-05-03',name: '小辉',sex: '男',position: '大数据开发',address: '上海市普陀区金沙江路 1516 弄'},{id: 9,date: '2016-05-03',name: '小龙',sex: '男',position: '全栈开发',address: '上海市普陀区金沙江路 1516 弄'},{id: 10,date: '2016-05-03',name: '小敏',sex: '女',position: '前台指导',address: '上海市普陀区金沙江路 1516 弄'}],autoWidth: true,bookType: 'xlsx',filename: ''}},methods: {excelDow() {import('@/vendor/Export2Excel.js').then(moudle => {const tHeader = ['序号', '日期', '姓名', '性别', '职业', '地址']const filterVal = ['id', 'date', 'name', 'sex', 'position', 'address']const list = this.tabListconst data = this.formatJson(filterVal, list)moudle.export_json_to_excel({header: tHeader,data,filename: this.filename === '' ? 'filename' : this.filename,autoWidth: this.autoWidth,bookType: this.bookType})})},formatJson(filterVal, jsonData) {return jsonData.map(v => filterVal.map(j => v[j]))}}
}
</script>

引入文件 vendor / Export2Excel.js

安装必要的包

npm install -S file-saver
npm install -S xlsx
npm install -D script-loader

/* eslint-disable */
require('script-loader!file-saver')
import XLSX from 'xlsx'function generateArray(table) {var out = []var rows = table.querySelectorAll('tr')var ranges = []for (var R = 0; R < rows.length; ++R) {var outRow = []var row = rows[R]var columns = row.querySelectorAll('td')for (var C = 0; C < columns.length; ++C) {var cell = columns[C]var colspan = cell.getAttribute('colspan')var rowspan = cell.getAttribute('rowspan')var cellValue = cell.innerTextif (cellValue !== '' && cellValue == +cellValue) cellValue = +cellValue//Skip rangesranges.forEach(function(range) {if (R >= range.s.r &&R <= range.e.r &&outRow.length >= range.s.c &&outRow.length <= range.e.c) {for (var i = 0; i <= range.e.c - range.s.c; ++i) outRow.push(null)}})//Handle Row Spanif (rowspan || colspan) {rowspan = rowspan || 1colspan = colspan || 1ranges.push({s: {r: R,c: outRow.length},e: {r: R + rowspan - 1,c: outRow.length + colspan - 1}})}//Handle ValueoutRow.push(cellValue !== '' ? cellValue : null)//Handle Colspanif (colspan) for (var k = 0; k < colspan - 1; ++k) outRow.push(null)}out.push(outRow)}return [out, ranges]
}function datenum(v, date1904) {if (date1904) v += 1462var epoch = Date.parse(v)return (epoch - new Date(Date.UTC(1899, 11, 30))) / (24 * 60 * 60 * 1000)
}function sheet_from_array_of_arrays(data, opts) {var ws = {}var range = {s: {c: 10000000,r: 10000000},e: {c: 0,r: 0}}for (var R = 0; R != data.length; ++R) {for (var C = 0; C != data[R].length; ++C) {if (range.s.r > R) range.s.r = Rif (range.s.c > C) range.s.c = Cif (range.e.r < R) range.e.r = Rif (range.e.c < C) range.e.c = Cvar cell = {v: data[R][C]}if (cell.v == null) continuevar cell_ref = 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[cell_ref] = 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 = {}
}function s2ab(s) {var buf = new ArrayBuffer(s.length)var view = new Uint8Array(buf)for (var i = 0; i != s.length; ++i) view[i] = s.charCodeAt(i) & 0xffreturn buf
}export function export_table_to_excel(id) {var theTable = document.getElementById(id)var oo = generateArray(theTable)var ranges = oo[1]/* original data */var data = oo[0]var ws_name = 'SheetJS'var wb = new Workbook(),ws = sheet_from_array_of_arrays(data)/* add ranges to worksheet */// ws['!cols'] = ['apple', 'banan'];ws['!merges'] = ranges/* add worksheet to workbook */wb.SheetNames.push(ws_name)wb.Sheets[ws_name] = wsvar wbout = XLSX.write(wb, {bookType: 'xlsx',bookSST: false,type: 'binary'})saveAs(new Blob([s2ab(wbout)], {type: 'application/octet-stream'}),'test.xlsx')
}export function export_json_to_excel({multiHeader = [],header,data,filename,merges = [],autoWidth = true,bookType = 'xlsx'
} = {}) {/* original data */filename = filename || 'excel-list'data = [...data]data.unshift(header)for (let i = multiHeader.length - 1; i > -1; i--) {data.unshift(multiHeader[i])}var ws_name = 'SheetJS'var wb = new Workbook(),ws = sheet_from_array_of_arrays(data)if (merges.length > 0) {if (!ws['!merges']) ws['!merges'] = []merges.forEach(item => {ws['!merges'].push(XLSX.utils.decode_range(item))})}if (autoWidth) {/*设置worksheet每列的最大宽度*/const colWidth = data.map(row =>row.map(val => {/*先判断是否为null/undefined*/if (val == null) {return {wch: 10}} else if (val.toString().charCodeAt(0) > 255) {/*再判断是否为中文*/return {wch: val.toString().length * 2}} else {return {wch: val.toString().length}}}))/*以第一行为初始值*/let result = colWidth[0]for (let i = 1; i < colWidth.length; i++) {for (let j = 0; j < colWidth[i].length; j++) {if (result[j]['wch'] < colWidth[i][j]['wch']) {result[j]['wch'] = colWidth[i][j]['wch']}}}ws['!cols'] = result}/* add worksheet to workbook */wb.SheetNames.push(ws_name)wb.Sheets[ws_name] = wsvar wbout = XLSX.write(wb, {bookType: bookType,bookSST: false,type: 'binary'})saveAs(new Blob([s2ab(wbout)], {type: 'application/octet-stream'}),`${filename}.${bookType}`)
}

Excel多级表头导出

<template><div class="excelOut"><el-card><div slot="header"><span>导出表格</span></div><el-inputtype="text"v-model="filename"placeholder="输入导出的文件名称"clearableclass="wid300 mtrt20"></el-input><el-button type="primary" @click="excelDow" class="btnStyle1">导出</el-button><el-table:data="tabList"borderstripestyle="width: 100%;margin-top: 30px;"><el-table-column prop="id" label="序号" width="80"></el-table-column><el-table-column label="配送信息"><el-table-column prop="name" label="姓名"> </el-table-column><el-table-column label="地址"><el-table-column prop="province" label="省份"> </el-table-column><el-table-column prop="city" label="市区"> </el-table-column><el-table-column prop="address" label="地址"> </el-table-column><el-table-column prop="zip" label="邮编"> </el-table-column></el-table-column></el-table-column><el-table-column prop="date" label="日期"> </el-table-column></el-table></el-card></div>
</template><script>
export default {data() {return {tabList: [{id: 1,date: '2019-06-14',name: '王小虎',province: '上海',city: '普陀区',address: '上海市普陀区金沙江路 1518 弄',zip: 200333},{id: 2,date: '2020-06-16',name: '小明',province: '北京',city: '朝阳区',address: '西坝河小区',zip: 200334},{id: 3,date: '1999-11-17',name: '小敏',province: '广东',city: '广州市',address: '天河区',zip: 9528012},{id: 4,date: '2021-06-16',name: '小黑',province: '广东',city: '深圳市',address: '南山区',zip: 9527012},{id: 5,date: '2021-06-16',name: '小虎',province: '重庆',city: '重庆市',address: '那个区',zip: 500567},{id: 6,date: '2021-06-16',name: '小牛',province: '河南',city: '商丘市',address: '睢阳区',zip: 411423},{id: 7,date: '2021-06-16',name: '小谭',province: '山东',city: '德州市',address: '德诚区',zip: 5115789},{id: 8,date: '2021-06-16',name: '小白',province: '云南',city: '大理市',address: '那个湾',zip: 985211}],autoWidth: true,bookType: 'xlsx',filename: ''}},methods: {excelDow() {import('@/vendor/Export2Excel.js').then(moudle => {const multiHeader = [['序号', '配送信息', '', '', '', '', '日期'],['', '姓名', '地址', '', '', '', '']]const tHeader = ['', '', '省份', '市区', '地址', '邮编', '']const filterVal = ['id','name','province','city','address','zip','date']const list = this.tabListconst data = this.formatJson(filterVal, list)const merges = ['A1:A3', 'B1:F1', 'G1:G3', 'B2:B3', 'C2:F2']moudle.export_json_to_excel({multiHeader,header: tHeader,data,merges,filename: this.filename === '' ? 'filename' : this.filename,autoWidth: this.autoWidth,bookType: this.bookType})})},formatJson(filterVal, jsonData) {return jsonData.map(v => filterVal.map(j => v[j]))}}
}
</script>

效果如下

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vue之Excel导出和导入

vue之Excel导出和导入

vue之Excel导出和导入

Excel导入

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