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XLSX.JS
链接:https://github.com/SheetJS/sheetjs
下载dist目录下的xlsx.mini.min.js即可(根据开发需求可下载其他版本)
mini版本只支持xlsx不支持xls哦,需要支持xls的话要下载完整版。
Uniapp可以将js文件放在@/common/js/目录下
日期 | 事项 | 支出 |
---|---|---|
2023-01-01 | 吃饭 | 300.00 |
2023-01-02 | 喝奶茶 | 28.00 |
2023-01-03 | 地铁 | 2.00 |
H5端(Uniapp)选取文件并获得binary数据
uni.chooseFile({
count: 1,
extension: ['.xls', '.xlsx'],
success: res => {
let reader = new FileReader();
reader.onload = e => {
const data = e.target.result
process(data) // data为binary数据
};
reader.readAsBinaryString(res.tempFiles[0]);
}
})
小程序端选取文件并获得binary数据
wx.chooseMessageFile({ count: 1, type: 'file', extension: ['.xls', '.xlsx'], success: res => { try { const path = res.tempFiles[0].path const fs = wx.getFileSystemManager() const data = fs.readFileSync(path, 'binary') // data为binary数据 process(data) } catch (e) { console.error(e) uni.showModal({ title: '提示', content: "文件读取失败", showCancel: false }) return } } })
import XLSX from '@/common/js/xlsx.0.19.2.mini.min.js'
function process(data){
let workbook = XLSX.read(data, {
type: "binary"
});
const sheetName = workbook.SheetNames[0]
let sheet = workbook.Sheets[sheetName]
const options = {
raw: false // 如果不加raw:true的话日期会被读成数字,根据开发需求决定
}
const rawData = XLSX.utils.sheet_to_json(sheet, options);
// do something
}
此处得到的rawData结构为:
[ { "日期": "2023-01-01", "事项": "吃饭", "支出": 300.00 }, { "日期": "2023-01-02", "事项": "喝奶茶", "支出": 28.00 }, { "日期": "2023-01-03", "事项": "地铁", "支出": 2.00 } ]
为了对齐数据采用二维数组格式
const data = [
[
'日期',
'事项',
'支出'
],
...Object.values(json_data)
]
const worksheet = XLSX.utils.aoa_to_sheet(data);
const workbook = XLSX.utils.book_new();
XLSX.utils.book_append_sheet(workbook, worksheet, '导出');
XLSX.writeFile(workbook, '导出.xlsx');
const fileData = XLSX.write(workbook, { bookType: "xlsx", type: 'base64' }); const filePath = `${wx.env.USER_DATA_PATH}/导出.xlsx` // 文件名对应表名,多个表的情况可以自己测试 const fs = wx.getFileSystemManager() fs.writeFile({ filePath: filePath, data: fileData, encoding: 'base64', success: res => { console.log(res) const sysInfo = wx.getSystemInfoSync() if (sysInfo.platform.toLowerCase().indexOf('windows') >= 0) { wx.saveFileToDisk({ filePath: filePath, success: console.log, fail: console.error }) } else { wx.openDocument({ filePath: filePath, showMenu: true, // 需要添加showMenu允许用户导出 success: console.log, fail: console.error }) } }, fail: e => { console.error(e) if (e.errMsg.indexOf('locked')) { wx.showModal({ title: '提示', content: '文档已打开,请先关闭', }) } } })
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