Vue2中导出Excel
目录方式一：vue-json-excel1、引入vue-json-excel2、 main.js中全局注册3、使用4、效果图方式二：file-saver、xlsx、script-loader1、引入依赖2、下载并引入Blob.js和Export2Excel.js3、使用4、效果图方式一：vue-json-excel这种方式会导出xls后缀的格式1、引入vue-json-excelcnpm i
·
目录
方式二：file-saver、xlsx、script-loader
2、下载并引入Blob.js和Export2Excel.js
Vue3中导出Excel见： https://blog.csdn.net/qq_40323256/article/details/128918574
https://blog.csdn.net/qq_40323256/article/details/128918574
方式一 ：vue-json-excel
这种方式会导出xls后缀的格式
https://blog.csdn.net/finedayforu/article/details/115167417
1、引入vue-json-excel
cnpm i -S vue-json-excel2、 main.js中全局注册
import JsonExcel from 'vue-json-excel'
Vue.component('downloadExcel', JsonExcel)3、使用
<!--home-->
<template>
<div class="home">
<download-excel
class="export-excel-wrapper"
:data="json_data"
:fields="json_fields"
type="xls"
worksheet="My Worksheet"
name="用户信息"
>
<el-button>导出EXCEL</el-button>
</download-excel>
</div>
</template>
<script>
export default {
data() {
return {
json_fields: {
年龄: "age", //常规字段
姓名: "info.name", //支持嵌套属性
密码: {
field: "info.phone",
//自定义回调函数
callback: value => {
return `+86 ${value}`;
}
}
},
json_data: [
{
age: 22,
info: {
name: "张三",
phone: 12222222222
},
sex: "男"
},
{
age: 23,
info: {
name: "李四",
phone: 13333333333
},
sex: "女"
}
]
// json_meta: [
// [
// {
// " key ": " charset ",
// " value ": " utf- 8 "
// }
// ]
// ]
};
}
};
</script>
<style lang="scss" scoped>
.home {
height: 100%;
background-color: rgb(128, 126, 126);
}
</style>在这里说明一下组件的各个属性
- json_data：需要导出的数据
- json_fields：自主选择要导出的字段，若不指定，默认导出全部数据中心全部字段
| 属性名 | 类型 | 描述 |
|---|---|---|
| data | Array | 需要导出的数据，支持中文 |
| fields | Object | 定义需要导出数据的字段 |
| name | String | 导出excel的文件名 |
| type | String | 导出excel的文件类型（xls,csv）,默认是xls |
注意：还可以指定fetch属性动态获取数据，只需在其回调中返回tableData即可
<template>
<div id="app">
<hr>
<h2>Fetch Example</h2>
<downloadexcel
class = "btn"
:fetch = "fetchData"
:fields = "json_fields"
:before-generate = "startDownload"
:before-finish = "finishDownload">
Download Excel
</downloadexcel>
</div>
</template>
<script>
import downloadexcel from "vue-json-excel";
import axios from 'axios';
export default {
name: "App",
components: {
downloadexcel,
},
data(){
return {
json_fields: {
'Complete name': 'name',
'Date': 'date',
},
}
}, //data
methods:{
async fetchData(){
const response = await axios.get('https://holidayapi.com/v1/holidays?key=a4b2083b-1577-4acd-9408-6e529996b129&country=US&year=2017&month=09');
console.log(response);
return response.data.holidays;
},
startDownload(){
alert('show loading');
},
finishDownload(){
alert('hide loading');
}
}
};
</script>4、效果图
方式二【推荐】：file-saver、xlsx、script-loader
经测试，导出15个字段情况下，最多可导出20万条记录，耗时20秒左右
1、引入依赖
cnpm i -S file-saver xlsx
cnpm i -D script-loader2、下载并引入Blob.js和Export2Excel.js
在src目录下创建excel文件,里面放入Blob.js 和Export2Excel.js两个文件（这两个文件可在文章底部获取）
下载地址：百度网盘 请输入提取码 提取码：ksnq
3、使用
<template>
<div>
<el-button type="primary" @click="export2Excel()">导出Excel</el-button>
</div>
</template>
<script>
export default {
components: {},
data() {
return {
tableData: [
{ index: 0, username: "张三", password: 333, age: 22 },
{ index: 1, username: "李四", password: 444, age: 23 }
]
};
},
props: {},
created() {},
mounted() {},
computed: {},
methods: {
export2Excel() {
require.ensure([], () => {
const { export_json_to_excel } = require("@/excel/Export2Excel");
const fieldName = ["索引", "用户名", "密码"];
const filterVal = ["index", "username", "password"];
const data = this.tableData.map(v => filterVal.map(j => v[j]));
export_json_to_excel(fieldName, data, "用户列表");
});
}
},
watch: {}
};
</script>
<style lang="scss" scoped>
</style>| 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 |
4、效果图
基于此方法，封装的导出Excel组件：ExportExcel
首先还是引入依赖
cnpm i -S file-saver xlsx
cnpm i -D script-loader再下载Blob.js和Export2Excel.js，并在src目录下创建excel文件,里面放入Blob.js 和Export2Excel.js两个文件
下载地址：百度网盘 请输入提取码 提取码：ksnq
@/components/ExportExcel/index.vue：
<!--ExportExcel-->
<template>
<div style="display: inline-block">
<el-popover placement="left" title="文件名" width="200" trigger="hover">
<el-input
v-model="filename"
placeholder="请输入文件名"
clearable
></el-input>
<el-button @click="export2Excel()" style="margin: 10px 0">确定</el-button>
<el-button slot="reference">导出</el-button>
</el-popover>
</div>
</template>
<script>
export default {
name: "ExportExcel",
components: {},
props: {
multipleSelection: {
type: Array,
default: () => [],
required: true,
},
fieldName: {
type: Array,
default: () => [],
required: true,
},
fieldValue: {
type: Array,
default: () => [],
required: true,
},
},
data() {
return {
filename: "",
};
},
created() {},
mounted() {},
computed: {},
methods: {
//导出Excel
export2Excel() {
if (this.multipleSelection.length == 0) {
this.$message.warning("请勾选需要导出的记录");
return;
}
try {
require.ensure([], () => {
const { export_json_to_excel } = require("@/excel/Export2Excel");
const data = this.multipleSelection.map((v) =>
this.fieldValue.map((j) => v[j])
);
export_json_to_excel(this.fieldName, data, this.filename);
this.filename = "";
this.$emit("exported");
this.$message.success("导出成功");
});
} catch (error) {
this.$message.error("导出失败");
this.filename = "";
this.$emit("exported");
}
},
},
watch: {},
};
</script>
<style lang="scss" scoped>
.ExportExcel {
}
</style>使用：
<template>
<div>
<ExportExcel
:multipleSelection="multipleSelection"
:fieldName="exportExcelData.fieldName"
:fieldValue="exportExcelData.fieldValue"
@exported="clearSelect()"
></ExportExcel>
<el-table ref="ref_table"/>
</div>
</template>
<script>
import ExportExcel from "@/components/ExportExcel/index.vue";
export default {
components: {
DialogSuppliers,
ExportExcel,
},
data() {
return {
multipleSelection: [{"username":"admin","password":123},{"username":"test","password":1243}],
exportExcelData: {
fieldName: ["用户名", "密码"],
fieldValue: ["username", "password"]
}
};
},
methods: {
clearSelect() {
this.$refs["ref_table"].clearSelection();
}
}
</script>导出指定的记录
1、引入依赖
cnpm i -S file-saver xlsx
cnpm i -D script-loader2、使用
<template>
<div>
<el-button type="primary" @click="exportExcel">导出文件</el-button>
<el-table :data="tableData" style="width: 100%" id="out-table">
<el-table-column prop="name" label="姓名" width="180"></el-table-column>
<el-table-column prop="age" label="年龄" width="80"></el-table-column>
<el-table-column prop="date" label="日期"></el-table-column>
</el-table>
</div>
</template>
<script>
//引入安装的依赖
import FileSaver from "file-saver";
import XLSX from "xlsx";
export default {
data() {
return {
tableData: [
{
name: "张三",
age: 22,
date: "2016-05-02"
},
{
name: "王小虎",
age: 23,
date: "2016-05-04"
}
]
};
},
methods: {
// XLSX.uitls.table_to_book( 放入的是table 的DOM 节点 ) ，sheetjs.xlsx 即为导出表格的名字，可修改！
exportExcel() {
let wb = XLSX.utils.table_to_book(document.querySelector("#out-table"));
let wbout = XLSX.write(wb, {
bookType: "xlsx",
bookSST: true,
type: "array"
});
FileSaver.saveAs(
new Blob([wbout], { type: "application/octet-stream" }),
"用户列表.xlsx"
);
return wbout;
}
}
};
</script>
<style scoped>
</style>3、效果图
此外，如果想导出指定的记录，可以参考这篇文章：vue实战(11)——vue+element UI实现表格数据导出Excel功能 - 简书
Blob.js:
/* eslint-disable */
/* Blob.js
* A Blob implementation.
* 2014-05-27
*
* By Eli Grey, http://eligrey.com
* By Devin Samarin, https://github.com/eboyjr
* License: X11/MIT
* See LICENSE.md
*/
/*global self, unescape */
/*jslint bitwise: true, regexp: true, confusion: true, es5: true, vars: true, white: true,
plusplus: true */
/*! @source http://purl.eligrey.com/github/Blob.js/blob/master/Blob.js */
(function (view) {
"use strict";
view.URL = view.URL || view.webkitURL;
if (view.Blob && view.URL) {
try {
new Blob;
return;
} catch (e) {}
}
// Internally we use a BlobBuilder implementation to base Blob off of
// in order to support older browsers that only have BlobBuilder
var BlobBuilder = view.BlobBuilder || view.WebKitBlobBuilder || view.MozBlobBuilder || (function (view) {
var
get_class = function (object) {
return Object.prototype.toString.call(object).match(/^\[object\s(.*)\]$/)[1];
},
FakeBlobBuilder = function BlobBuilder() {
this.data = [];
},
FakeBlob = function Blob(data, type, encoding) {
this.data = data;
this.size = data.length;
this.type = type;
this.encoding = encoding;
},
FBB_proto = FakeBlobBuilder.prototype,
FB_proto = FakeBlob.prototype,
FileReaderSync = view.FileReaderSync,
FileException = function (type) {
this.code = this[this.name = type];
},
file_ex_codes = (
"NOT_FOUND_ERR SECURITY_ERR ABORT_ERR NOT_READABLE_ERR ENCODING_ERR " +
"NO_MODIFICATION_ALLOWED_ERR INVALID_STATE_ERR SYNTAX_ERR"
).split(" "),
file_ex_code = file_ex_codes.length,
real_URL = view.URL || view.webkitURL || view,
real_create_object_URL = real_URL.createObjectURL,
real_revoke_object_URL = real_URL.revokeObjectURL,
URL = real_URL,
btoa = view.btoa,
atob = view.atob
,
ArrayBuffer = view.ArrayBuffer,
Uint8Array = view.Uint8Array;
FakeBlob.fake = FB_proto.fake = true;
while (file_ex_code--) {
FileException.prototype[file_ex_codes[file_ex_code]] = file_ex_code + 1;
}
if (!real_URL.createObjectURL) {
URL = view.URL = {};
}
URL.createObjectURL = function (blob) {
var
type = blob.type,
data_URI_header;
if (type === null) {
type = "application/octet-stream";
}
if (blob instanceof FakeBlob) {
data_URI_header = "data:" + type;
if (blob.encoding === "base64") {
return data_URI_header + ";base64," + blob.data;
} else if (blob.encoding === "URI") {
return data_URI_header + "," + decodeURIComponent(blob.data);
}
if (btoa) {
return data_URI_header + ";base64," + btoa(blob.data);
} else {
return data_URI_header + "," + encodeURIComponent(blob.data);
}
} else if (real_create_object_URL) {
return real_create_object_URL.call(real_URL, blob);
}
};
URL.revokeObjectURL = function (object_URL) {
if (object_URL.substring(0, 5) !== "data:" && real_revoke_object_URL) {
real_revoke_object_URL.call(real_URL, object_URL);
}
};
FBB_proto.append = function (data /*, endings*/ ) {
var bb = this.data;
// decode data to a binary string
if (Uint8Array && (data instanceof ArrayBuffer || data instanceof Uint8Array)) {
var
str = "",
buf = new Uint8Array(data),
i = 0,
buf_len = buf.length;
for (; i < buf_len; i++) {
str += String.fromCharCode(buf[i]);
}
bb.push(str);
} else if (get_class(data) === "Blob" || get_class(data) === "File") {
if (FileReaderSync) {
var fr = new FileReaderSync;
bb.push(fr.readAsBinaryString(data));
} else {
// async FileReader won't work as BlobBuilder is sync
throw new FileException("NOT_READABLE_ERR");
}
} else if (data instanceof FakeBlob) {
if (data.encoding === "base64" && atob) {
bb.push(atob(data.data));
} else if (data.encoding === "URI") {
bb.push(decodeURIComponent(data.data));
} else if (data.encoding === "raw") {
bb.push(data.data);
}
} else {
if (typeof data !== "string") {
data += ""; // convert unsupported types to strings
}
// decode UTF-16 to binary string
bb.push(unescape(encodeURIComponent(data)));
}
};
FBB_proto.getBlob = function (type) {
if (!arguments.length) {
type = null;
}
return new FakeBlob(this.data.join(""), type, "raw");
};
FBB_proto.toString = function () {
return "[object BlobBuilder]";
};
FB_proto.slice = function (start, end, type) {
var args = arguments.length;
if (args < 3) {
type = null;
}
return new FakeBlob(
this.data.slice(start, args > 1 ? end : this.data.length), type, this.encoding
);
};
FB_proto.toString = function () {
return "[object Blob]";
};
FB_proto.close = function () {
this.size = this.data.length = 0;
};
return FakeBlobBuilder;
}(view));
view.Blob = function Blob(blobParts, options) {
var type = options ? (options.type || "") : "";
var builder = new BlobBuilder();
if (blobParts) {
for (var i = 0, len = blobParts.length; i < len; i++) {
builder.append(blobParts[i]);
}
}
return builder.getBlob(type);
};
}(typeof self !== "undefined" && self || typeof window !== "undefined" && window || this.content || this));Export2Excel.js:
/* eslint-disable */
require('script-loader!file-saver');
require('./Blob.js');
require('script-loader!xlsx/dist/xlsx.core.min');
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);
console.log('a')
var oo = generateArray(theTable);
var ranges = oo[1];
/* original data */
var data = oo[0];
var ws_name = "SheetJS";
console.log(data);
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")
}
function formatJson(jsonData) {
console.log(jsonData)
}
export function export_json_to_excel(th, jsonData, defaultTitle) {
/* original data */
var data = jsonData;
data.unshift(th);
var ws_name = "SheetJS";
var wb = new Workbook(),
ws = sheet_from_array_of_arrays(data);
/* 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'
});
var title = defaultTitle || '列表'
saveAs(new Blob([s2ab(wbout)], {
type: "application/octet-stream"
}), title + ".xlsx")
}
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