怎么在Vue项目中导出Excel?针对这个问题,这篇文章详细介绍了相对应的分析和解答,希望可以帮助更多想解决这个问题的小伙伴找到更简单易行的方法。
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Excel 导出
Excel 的导入导出都是依赖于js-xlsx来实现的。
在 js-xlsx的基础上又封装了Export2Excel.js来方便导出数据。
使用
由于 Export2Excel不仅依赖js-xlsx还依赖file-saver和script-loader。
所以你先需要安装如下命令:
npm install xlsx file-saver -S
npm install script-loader -S -D
由于js-xlsx体积还是很大的,导出功能也不是一个非常常用的功能,所以使用的时候建议使用懒加载。使用方法如下:
import('@/vendor/Export2Excel').then(excel => {
excel.export_json_to_excel({
header: tHeader, //表头 必填
data, //具体数据 必填
filename: 'excel-list', //非必填, 导出文件的名字
autoWidth: true, //非必填, 导出文件的排列方式
bookType: 'xlsx' //非必填, 导出文件的格式
})
})注意
在v3.9.1+以后的版本中移除了对 Bolb 的兼容性代码,如果你还需要兼容很低版本的浏览器可以手动引入blob-polyfill进行兼容。
参数
| 参数 | 说明 | 类型 | 可选值 | 默认值 |
| header | 导出数据的表头 | Array | / | [] |
| data | 导出的具体数据 | Array | / | [] |
| filename | 导出文件名 | String | / | excel-list |
| autoWidth | 单元格是否要自适应宽度 | Boolean | true / false | true |
| bookType | 导出文件类型 | String | xlsx, csv, txt, more | xlsx |
项目实战
使用脚手架搭建出基本项目雏形,这时候在src目录下新建一个vendor(文件名自己定义)文件夹,新建一个Export2Excel.js文件,这个文件里面在js-xlsx的基础上又封装了Export2Excel.js来方便导出数据。
目录如下

Export2Excel.js代码如下
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.innerText;
if (cellValue !== "" && cellValue == +cellValue) cellValue = +cellValue;
//Skip ranges
ranges.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 Span
if (rowspan || colspan) {
rowspan = rowspan || 1;
colspan = colspan || 1;
ranges.push({
s: {
r: R,
c: outRow.length
},
e: {
r: R + rowspan - 1,
c: outRow.length + colspan - 1
}
});
};
//Handle Value
outRow.push(cellValue !== "" ? cellValue : null);
//Handle Colspan
if (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 += 1462;
var 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 = 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;
var cell = {
v: data[R][C]
};
if (cell.v == null) continue;
var 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) & 0xFF;
return 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] = ws;
var 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
};
}
/*再判断是否为中文*/
else if (val.toString().charCodeAt(0) > 255) {
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] = ws;
var wbout = XLSX.write(wb, {
bookType: bookType,
bookSST: false,
type: 'binary'
});
saveAs(new Blob([s2ab(wbout)], {
type: "application/octet-stream"
}), `${filename}.${bookType}`);
}新建一个exportExcel.vue模板用于导出Excel表格,使用代码如下
export default { name: "exportExcelDialog", data() { return { // 列表内容 list: null, // loding窗口状态 listLoading: true, // 下载loding窗口状态 downloadLoading: false, // 导出文件名称 filename: "", // 导出表格宽度是否auto autoWidth: true, // 导出文件格式 bookType: "xlsx", // 默认导出文件后缀类型 options: ["xlsx", "csv", "txt"] }; }, methods: { // 导出Excel表格 handleDownload() { this.downloadLoading = true; // 懒加载该用法 import("@/vendor/Export2Excel").then(excel => { // 设置导出表格的头部 const tHeader = ["序号", "订单号", "菜品", "收银员", "金额", "时间"]; // 设置要导出的属性 const filterVal = [ "id", "title", "foods", "author", "pageviews", "display_time" ]; // 获取当前展示的表格数据 const list = this.list; // 将要导出的数据进行一个过滤 const data = this.formatJson(filterVal, list); // 调用我们封装好的方法进行导出Excel excel.export_json_to_excel({ // 导出的头部 header: tHeader, // 导出的内容 data, // 导出的文件名称 filename: this.filename, // 导出的表格宽度是否自动 autoWidth: this.autoWidth, // 导出文件的后缀类型 bookType: this.bookType }); this.downloadLoading = false; }); }, // 对要导出的内容进行过滤 formatJson(filterVal, jsonData) { return jsonData.map(v => filterVal.map(j => { if (j === "timestamp") { return this.parseTime(v[j]); } else { return v[j]; } }) ); }, // 过滤时间 parseTime(time, cFormat) { if (arguments.length === 0) { return null; } const format = cFormat || "{y}-{m}-{d} {h}:{i}:{s}"; let date; if (typeof time === "object") { date = time; } else { if (typeof time === "string" && /^[0-9]+$/.test(time)) { time = parseInt(time); } if (typeof time === "number" && time.toString().length === 10) { time = time * 1000; } date = new Date(time); } const formatObj = { y: date.getFullYear(), m: date.getMonth() + 1, d: date.getDate(), h: date.getHours(), i: date.getMinutes(), s: date.getSeconds(), a: date.getDay() }; const timeStr = format.replace(/{(y|m|d|h|i|s|a)+}/g, (result, key) => { let value = formatObj[key]; // Note: getDay() returns 0 on Sunday if (key === "a") { return ["日", "一", "二", "三", "四", "五", "六"][value]; } if (result.length > 0 && value < 10) { value = "0" + value; } return value || 0; }); return timeStr; } }, mounted() { // 模拟获取数据 setTimeout(() => { this.list = [ { timestamp: 1432179778664, author: "Charles", comment_disabled: true, content_short: "mock data", display_time: "1994-05-25 23:37:25", foods: "鸡翅、萝卜、牛肉、红烧大闸蟹、红烧鸡翅", id: 1, image_uri: "https://wpimg.wallstcn.com/e4558086-631c-425c-9430-56ffb46e70b3", importance: 3, pageviews: 2864, platforms: ["a-platform"], reviewer: "Sandra", status: "published", title: "O20190407135010000000001", type: "CN" }, { timestamp: 1432179778664, author: "Charles", comment_disabled: true, content_short: "mock data", display_time: "1994-05-25 23:37:25", foods: "鸡翅、萝卜、牛肉、红烧大闸蟹、红烧鸡翅", id: 1, image_uri: "https://wpimg.wallstcn.com/e4558086-631c-425c-9430-56ffb46e70b3", importance: 3, pageviews: 2864, platforms: ["a-platform"], reviewer: "Sandra", status: "published", title: "O20190407135010000000001", type: "CN" }, { timestamp: 1432179778664, author: "Charles", comment_disabled: true, content_short: "mock data", display_time: "1994-05-25 23:37:25", foods: "鸡翅、萝卜、牛肉、红烧大闸蟹、红烧鸡翅", id: 1, image_uri: "https://wpimg.wallstcn.com/e4558086-631c-425c-9430-56ffb46e70b3", importance: 3, pageviews: 2864, platforms: ["a-platform"], reviewer: "Sandra", status: "published", title: "O20190407135010000000001", type: "CN" }, { timestamp: 1432179778664, author: "Charles", comment_disabled: true, content_short: "mock data", display_time: "1994-05-25 23:37:25", foods: "鸡翅、萝卜、牛肉、红烧大闸蟹、红烧鸡翅", id: 1, image_uri: "https://wpimg.wallstcn.com/e4558086-631c-425c-9430-56ffb46e70b3", importance: 3, pageviews: 2864, platforms: ["a-platform"], reviewer: "Sandra", status: "published", title: "O20190407135010000000001", type: "CN" }, { timestamp: 1432179778664, author: "Charles", comment_disabled: true, content_short: "mock data", display_time: "1994-05-25 23:37:25", foods: "鸡翅、萝卜、牛肉、红烧大闸蟹、红烧鸡翅", id: 1, image_uri: "https://wpimg.wallstcn.com/e4558086-631c-425c-9430-56ffb46e70b3", importance: 3, pageviews: 2864, platforms: ["a-platform"], reviewer: "Sandra", status: "published", title: "O20190407135010000000001", type: "CN" }, { timestamp: 1432179778664, author: "Charles", comment_disabled: true, content_short: "mock data", display_time: "1994-05-25 23:37:25", foods: "鸡翅、萝卜、牛肉、红烧大闸蟹、红烧鸡翅", id: 1, image_uri: "https://wpimg.wallstcn.com/e4558086-631c-425c-9430-56ffb46e70b3", importance: 3, pageviews: 2864, platforms: ["a-platform"], reviewer: "Sandra", status: "published", title: "O20190407135010000000001", type: "CN" }, { timestamp: 1432179778664, author: "Charles", comment_disabled: true, content_short: "mock data", display_time: "1994-05-25 23:37:25", foods: "鸡翅、萝卜、牛肉、红烧大闸蟹、红烧鸡翅", id: 1, image_uri: "https://wpimg.wallstcn.com/e4558086-631c-425c-9430-56ffb46e70b3", importance: 3, pageviews: 2864, platforms: ["a-platform"], reviewer: "Sandra", status: "published", title: "O20190407135010000000001", type: "CN" }, { timestamp: 1432179778664, author: "Charles", comment_disabled: true, content_short: "mock data", display_time: "1994-05-25 23:37:25", foods: "鸡翅、萝卜、牛肉、红烧大闸蟹、红烧鸡翅", id: 1, image_uri: "https://wpimg.wallstcn.com/e4558086-631c-425c-9430-56ffb46e70b3", importance: 3, pageviews: 2864, platforms: ["a-platform"], reviewer: "Sandra", status: "published", title: "O20190407135010000000001", type: "CN" }, { timestamp: 1432179778664, author: "Charles", comment_disabled: true, content_short: "mock data", display_time: "1994-05-25 23:37:25", foods: "鸡翅、萝卜、牛肉、红烧大闸蟹、红烧鸡翅", id: 1, image_uri: "https://wpimg.wallstcn.com/e4558086-631c-425c-9430-56ffb46e70b3", importance: 3, pageviews: 2864, platforms: ["a-platform"], reviewer: "Sandra", status: "published", title: "O20190407135010000000001", type: "CN" } ]; this.listLoading = false; }, 2000); }, filters: { // 过滤时间 parseTime(time, cFormat) { if (arguments.length === 0) { return null; } const format = cFormat || "{y}-{m}-{d} {h}:{i}:{s}"; let date; if (typeof time === "object") { date = time; } else { if (typeof time === "string" && /^[0-9]+$/.test(time)) { time = parseInt(time); } if (typeof time === "number" && time.toString().length === 10) { time = time * 1000; } date = new Date(time); } const formatObj = { y: date.getFullYear(), m: date.getMonth() + 1, d: date.getDate(), h: date.getHours(), i: date.getMinutes(), s: date.getSeconds(), a: date.getDay() }; const timeStr = format.replace(/{(y|m|d|h|i|s|a)+}/g, (result, key) => { let value = formatObj[key]; // Note: getDay() returns 0 on Sunday if (key === "a") { return ["日", "一", "二", "三", "四", "五", "六"][value]; } if (result.length > 0 && value < 10) { value = "0" + value; } return value || 0; }); return timeStr; } } }True False export Excel {{ scope.$index }} {{ scope.row.title }} {{ scope.row.foods }} {{ scope.row.author }} {{ scope.row.pageviews }} {{ scope.row.timestamp | parseTime('{y}-{m}-{d} {h}:{i}') }}
效果图如下

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