一、生成下载的表格模板数据
代码如下：
// 建立一个工具类函数文件 utils.js
export function tableToExcel(jsonData, str) {
//要导出的json数据
let worksheet = 'sheet1'
// let str = '<tr><td>姓名</td><td>电话</td><td>邮箱</td></tr>'
//循环遍历，每行加入tr标签，每个单元格加td标签
console.log('jsonData: ', jsonData);
for (let i = 0; i < jsonData.length; i++) {
str += '<tr>'
for (let key in jsonData[i]) {
console.log('key: ', key);
console.log('jsonData[i][key]: ', jsonData[i][key]);
//增加\t为了不让表格显示科学计数法或者其他格式
str += `<td>${jsonData[i][key] + '\t'}</td>`
}
str += '</tr>'
console.log('str: ', str);
}
//下载的表格模板数据
let template = `<html xmlns:o="urn:schemas-microsoft-com:office:office"
xmlns:x="urn:schemas-microsoft-com:office:excel"
xmlns="http://www.w3.org/TR/REC-html40">
<head><!--[if gte mso 9]><xml encoding="UTF-8"><x:ExcelWorkbook><x:ExcelWorksheets><x:ExcelWorksheet>
<x:Name>${worksheet}</x:Name>
<x:WorksheetOptions><x:DisplayGridlines/></x:WorksheetOptions></x:ExcelWorksheet>
</x:ExcelWorksheets></x:ExcelWorkbook></xml><![endif]-->
</head><body><table>${str}</table></body></html>`
//下载模板
return template
}
二、如何导出Excel
代码如下：
// 同上放在 utils.js
export function exportExcel(fileData, documentName = 'excel') {
/*
PRIVATE_DOC: 应用私有文档目录常量
PUBLIC_DOCUMENTS: 程序公用文档目录常量
*/
plus.io.requestFileSystem(plus.io.PUBLIC_DOCUMENTS, function (fs) {
let rootObj = fs.root
let fullPath = rootObj.fullPath
console.log("开始导出数据********")
// 创建文件夹
rootObj.getDirectory(documentName, {
create: true
}, function (dirEntry) {
// 创建文件,防止重名
let fileName = new Date().getTime()
console.log(fileName)
dirEntry.getFile(`${fileName}.xlsx`, {
create: true
}, function (fileEntry) {
fileEntry.createWriter(function (writer) {
writer.onwritestart = (e) => {
showLoading('正在导出')
}
writer.onwrite = (e) => {
// 成功导出数据
hideLoading()
setTimeout(() => {
showToast('导出成功')
const path = `file://${fullPath}${documentName}/${fileName}.xlsx`
console.log('文件位置：', path)
// 打开文件
uni.openDocument({
filePath: path,
success: res => {
console.log('打开文档成功', res)
},
fail: e => {
console.log('打开失败', e)
}
})
}, 500)
}
// 写入内容
writer.write(fileData)
}, function (e) {
console.log(e.message)
})
})
})
})
}
function showToast(title = '') {
uni.hideLoading()
uni.showToast({
title,
icon: 'none',
duration: 1500
})
}
/**
* loading
* @param title
*/
function showLoading(title = '加载中') {
uni.hideLoading()
uni.showLoading({
title,
mask: true
})
}
/**
* hideLoading
*/
function hideLoading() {
uni.hideLoading()
}
三、如何使用
// 先引入
import { tableToExcel, exportExcel } from '@/util/utils'
// 导出函数
exportInfo() {
let carInfoStr = ''
if (this.carList.length) {
this.carList.forEach((ele) => {
carInfoStr += `车辆类型：${ele.selectField101}，车牌号：${ele.comInputField102}；`
})
}
let jsonData = [
{
comInputField103:
this.householderInfo.comInputField103 || '',
selectField102_name:
this.householderInfo.selectField102_name || '',
comInputField104:
this.householderInfo.comInputField104 || '',
radioField113_name:
this.householderInfo.radioField113_name || '',
selectField114: this.householderInfo.selectField114 || '',
carInfo: carInfoStr,
comInputField109:
this.householderInfo.comInputField109 || '',
comInputField105:
this.householderInfo.comInputField105 || '',
selectField107_name:
this.householderInfo.selectField107_name || '',
comInputField108:
this.householderInfo.comInputField108 || '',
},
]
// 定义表头
let str =
'<tr><td>户主姓名</td><td>性别</td><td>身份证号</td><td>是否党员</td><td>群体</td><td>车辆信息</td></td><td>手机号</td><td>职业</td><td>学历</td><td>住址</td></tr>'
// 生成template 模板
let template = tableToExcel(jsonData, str)
// 导出Excel
exportExcel(template, '户主信息')
},