vue2.0 + element UI 中 el-table 数据导出Excel

2018-11-13 分类：Js前端框架作者：管理员阅读（1826）

今天帮一个同学看了下他做的个项目，发现有个一键“导出excel”功能，然后陷入无限的回忆遐想，因为在上家公司也是见过的，只是那时候用的bootstrap别人都弄好的插件，平时用到的不多就没怎么关注，现在很多项目用vue开发，就特意去看了下。

1、安装相关依赖

主要是两个依赖

1	npm install --save xlsx file-saver

如果想详细看着两个插件使用，请移步github。

1 2	https://github.com/SheetJS/js-xlsx https://github.com/eligrey/FileSaver.js

2、组件里头引入

1 2	import FileSaver from 'file-saver' import XLSX from 'xlsx'

3、组件methods里写一个方法

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exportExcel () {
/* generate workbook object from table */
var wb = XLSX.utils.table_to_book(document.querySelector('#out-table'))
/* get binary string as output */
var wbout = XLSX.write(wb, { bookType: 'xlsx', bookSST: true, type: 'array' })
try {
FileSaver.saveAs(new Blob([wbout], { type: 'application/octet-stream' }), 'sheetjs.xlsx')
} catch (e) { if (typeof console !== 'undefined') console.log(e, wbout) }
return wbout
}

注意：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！

4、点击导出按钮执行 exportExcel 的方法即可。

组件里头代码截图

实现效果图如下：

导出如下表格的数据到excel。

导出到excel 表格，结果如下：

Js 导出excel （兼容ie9）

需要引入的相关js 库：

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<script type="text/javascript" src="https://unpkg.com/xlsx/dist/shim.min.js"></script>
<script type="text/vbscript" language="vbscript">
IE_GetProfileAndPath_Key = "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders"
Function IE_GetProfileAndPath(key): Set wshell = CreateObject("WScript.Shell"): IE_GetProfileAndPath = wshell.RegRead(IE_GetProfileAndPath_Key & key): IE_GetProfileAndPath = wshell.ExpandEnvironmentStrings("%USERPROFILE%") & "!" & IE_GetProfileAndPath: End Function
Function IE_SaveFile_Impl(FileName, payload): Dim data, plen, i, bit: data = CStr(payload): plen = Len(data): Set fso = CreateObject("Scripting.FileSystemObject"): fso.CreateTextFile FileName, True: Set f = fso.GetFile(FileName): Set stream = f.OpenAsTextStream(2, 0): For i = 1 To plen Step 3: bit = Mid(data, i, 2): stream.write Chr(CLng("&h" & bit)): Next: stream.Close: IE_SaveFile_Impl = True: End Function
</script>
<script type="text/vbscript" language="vbscript">
Function IE_LoadFile_Impl(FileName): Dim out(), plen, i, cc: Set fso = CreateObject("Scripting.FileSystemObject"): Set f = fso.GetFile(FileName): Set stream = f.OpenAsTextStream(1, 0): plen = f.Size: ReDim out(plen): For i = 1 To plen Step 1: cc = Hex(Asc(stream.read(1))): If Len(cc) < 2 Then: cc = "0" & cc: End If: out(i) = cc: Next: IE_LoadFile_Impl = Join(out,""): End Function
</script>
<script type="text/javascript" src="https://unpkg.com/xlsx/dist/xlsx.full.min.js"></script>
<script type="text/javascript" src="https://unpkg.com/blob.js@1.0.1/Blob.js"></script>
<script type="text/javascript" src="https://unpkg.com/file-saver@1.3.3/FileSaver.js"></script>

页面上的HTML 的table 元素：

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<div style="display: block">
<table id="js_table_xlsx">
<tbody>
<tr>
<td><span>This</span></td>
<td><span>is</span></td>
<td><span>a</span></td>
<td><span>Test</span></td>
</tr>
<tr>
<td><span>வணக்கம்</span></td>
<td><span>สวัสดี</span></td>
<td><span>你好</span></td>
<td><span>가지마</span></td>
</tr>
<tr>
<td><span>1233</span></td>
<td><span>2333</span></td>
<td><span>3333</span></td>
<td><span>43333</span></td>
</tr>
</tbody>
</table>
</div>

<button class="js_exportExcel">导出excel</button>

js 事件函数：

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/*
* 导出 excel 表格，利用隐藏的excel
* */
$('.js_exportExcel').on('click', function () {
exportExcel_Doit();
});
/*
* 导出excel function
* */
function exportExcel_Doit(type, fn, dl) {
var elt = document.getElementById('js_table_xlsx');
var wb = XLSX.utils.table_to_book(elt, {sheet: "Sheet JS"});
return dl ?
XLSX.write(wb, {bookType: type, bookSST: true, type: 'base64'}) :
XLSX.writeFile(wb, fn || ('test.' + (type || 'xlsx')));
}

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