在最近的项目中遇到了这么一个需求，需要对上传的表格进行呈现预览，并且可以在线对表格进行编辑，然后进行保存。
思路：用到的组件 luckysheet exceljs FileSaver LuckyExcel
相关依赖：
npm install exceljs npm install FileSaver npm install luckyexcel
相关步骤：
在index.html中引入相关 luckysheet资源，此处我用的cdn的，大家也可以切换成本地资源。具体可以百度。
<link rel='stylesheet' href='https://cdn.jsdelivr.net/npm/luckysheet@latest/dist/plugins/css/pluginsCss.css' />
<link rel='stylesheet' href='https://cdn.jsdelivr.net/npm/luckysheet@latest/dist/plugins/plugins.css' />
<link rel='stylesheet' href='https://cdn.jsdelivr.net/npm/luckysheet@latest/dist/css/luckysheet.css' />
<link rel='stylesheet' href='https://cdn.jsdelivr.net/npm/luckysheet@latest/dist/assets/iconfont/iconfont.css' />
<script src="https://cdn.jsdelivr.net/npm/luckysheet@latest/dist/plugins/js/plugin.js"></script>
<script src="https://cdn.jsdelivr.net/npm/luckysheet@latest/dist/luckysheet.umd.js"></script>
vue页面展示：
<template>
<div class="hello">
<div id="luckysheet" style="margin:0px;padding:0px;position:absolute;width:100%;height:100%;left: 0px;top: 0px;"></div>
<el-button class="aaSave" type="success" @click="tableSave()">保存</el-button>
<!-- <input style="font-size:16px;" type="file" @change="uploadExcel" /> -->
</div>
</template>
<script>
import LuckyExcel from 'luckyexcel'
import {exportExcel} from './export'
export default {
name: 'HelloWorld',
props: {
msg: String
},
data(){
return {
}
},
mounted() {
this.loadExcel()
},
methods:{
loadExcel() {
// 将获取到的文件对象传递给 uploadExcel 方法 这里是要呈现的文件的地址，此处我写死，具体的可以根据自己项目的实际接口展示
var url = '这是文件的线上地址'
var that = this
// 使用fetch获取内容
fetch(url).then(response => response.blob()) // 将响应转换为Blob
.then(blob => {
// 创建File对象
const fileName = '工作安排.xlsx'; // 你可以从URL中提取文件名，这里假设已经知道了
const file = new File([blob], fileName, { type: 'excel/xlsx' });
var files = [];
files.push(file);
//表格回显
that.uploadExcel(files);
}).catch(error => console.error('Error fetching file:', error));
},
uploadExcel(files) {
if (files == null || files.length == 0) return alert('没有文件等待导入');
let name = files[0].name;
let suffixArr = name.split('.'),
suffix = suffixArr[suffixArr.length - 1];
if (suffix != 'xlsx') return alert('目前只支持导入xlsx文件');
LuckyExcel.transformExcelToLucky(files[0], function (exportJson, luckysheetfile) {
if (exportJson.sheets == null || exportJson.sheets.length == 0) return alert('读取excel文件内容失败, 目前不支持XLS文件!');
window.luckysheet.destroy();
window.luckysheet.create({
data: exportJson.sheets,
title: exportJson.info.name,
container: 'luckysheet', // 设定DOM容器的id
lang: 'zh', // 设定表格语言
});
});
},
//保存
tableSave(){
var json = window.luckysheet.getAllSheets(); //获取表格的全部数据
exportExcel(json,"名字").then(res=>{
//拿到表格的blob方便下一步操作
console.log(res,'--11')
})
},
}
}
</script>
<style>
.luckysheet_info_detail_back{
display: none;
}
.luckysheet-share-logo,.luckysheet_info_detail_update,.luckysheet_info_detail_save,.luckysheet_info_detail_input{
display: none;
}
.aaSave{
position: absolute;
top:10px;
right:10px;
}
</style>
exportjs的相关内容
//此处是将获取到的表格数据转换成blob
const Excel = require('exceljs')
import FileSaver from 'file-saver'
export var 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！",blob)
return blob
// FileSaver.saveAs(blob, `${value}.xlsx`) //这里是导出，根据实际情况来
})
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
}
标签：vue,return,预览,cell,luckysheet,let,const,border From： https://www.cnblogs.com/menxiaojin/p/18197912