使用还需要安装两个依赖,npm install xlsx --save 和 npm install file-saver --save,这里需要注意下,如果xlsx的版本高了的话配置里面的utils可能会报错,所以只需要将xlsx的版本安装一个固定版本就行了,我这里测试安装0.17.5版本没问题可以不会报错,npm install xlsx@^0.17.5安装到这个固定版本指令
<template>
<div class="content">
<el-button
type="primary"
:loading="exportLoading"
@click="exportData"
>信息导出
</el-button>
<el-button
type="success"
:loading="exportLoading"
@click="exportDatas"
>测试导出
</el-button>
</div>
</template>
<script>
import { export_json_to_excel} from '../../vendor/Export2Excel.js'。// 创建一个文件放入Export2Excel配置的js文件,然后在这里引入就行
export default {
data(){
return {
tHeader:['姓名','性别','手机号码','家庭地址','最后登陆时间'],
filterVal:['name','gender','mobelNo','address','lastTime'],
tableDatas:[{'name':'李佳佳','gender':'女','mobelNo':'13509090909','address':'成都市青羊区抚琴小区','lastTime':'18:02:00'},
{'name':'王玉珊','gender':'女','mobelNo':'13509090808','address':'成都市青羊区抚琴小区','lastTime':'18:09:00'},
{'name':'张嘉琪','gender':'男','mobelNo':'13509090606','address':'成都市青羊区瑞莲路','lastTime':'18:08:00'}],
exportLoading:false,
}
},
methods:{
exportData(){
let paramData={
'data':{
'phone':'',
'smsCode':'',
'areaCode':''
},
'pageNum':1,
'pageSize':100
}
this.$axios({
url:'输入实际的地址',
method:'post',
data:paramData
}).then((res)=>{
this.tableData=[]
this.total=res.total;
this.tableData.push(...res.list) // 获取到初次查询的数据push到接收的数组中
if(res.isLastPage){ // 如果查询数据是最后一页就直接下载
let data=this.formatJson(this.filterVal,this.tableData)
export_json_to_excel({
header:this.tHeader,
data,
filename:'登陆信息导出'
})
this.exportLoading=false
}else{ // 如果数据很多这里就需要分页查询汇总再导出使用到了Promise来进行多次请求合并
let count=Math.ceil(res.total/100);
let promiseList=[];
for(let i=1;i<=count;i++){
let num=i+1
let paramData={
'data':{
'phone':'',
'smsCode':'',
'areaCode':''
},
'pageNum':num,
'pageSize':100
}
let p=new Promise((resolve,reject)=>{
this.$axios({
url:"同上路径",
method:'post',
data:paramData
}).then((result)=>{
resolve(result)
}).catch((e)=>{
reject(e)
})
})
promiseList.push(p)
};
Promise.all(promiseList).then((res)=>{
res.forEach((item)=>{
this.tableData.push(...item.list)
})
})
this.$loading({}).close();
let data=this.formatJson(this.filterVal,this.tableData)
export_json_to_excel({
header:this.tHeader,
data,
filename:'登陆信息导出'
})
this.exportLoading=false
}
}).catch((e)=>{
if(e){
this.exportLoading=false;
this.$message({
showClose:true,
message:'下载失败!',
type:'warning'
})
}
})
},
exportDatas(){
let data=this.formatJson(this.filterVal,this.tableDatas)
export_json_to_excel({
header:this.tHeader,
data,
filename:'登陆信息导出'
})
},
// 导出配置
formatJson(filterVal,jsonData){
return jsonData.map(v=>
filterVal.map(j=>{
if(j==="timestamp"){
return parseTime(v[j])
}else{
return v[j]
}
})
)
}
}
}
</script>
<style>
.content{
height: 80vh;
display: flex;
justify-content: center;
align-items: center;
}
</style>
## Export2Excel文件配置
/* eslint-disable */
import { saveAs } from '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 = [],
multiHeader2 = [],
header,
data,
filename,
merges = [],
autoWidth = true,
bookType = 'xlsx'
} = {}) {
/* original data */
filename = filename || 'excel-list'
data = [...data]
data.unshift(header);
for (let i = multiHeader2.length - 1; i > -1; i--) {
data.unshift(multiHeader2[i])
}
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}`);
}