原生JavaScript 導出excel表格（兼容ie和其餘主流瀏覽器）

時間 2019-11-24

標籤原生 javascript 導出 excel 表格兼容其餘主流瀏覽器欄目 JavaScript 简体版

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因同事的需求是想前端導出excel表格，網上找了一些demo，本身修改了一下，可能之後會用到，記錄下來吧，兼容ie和一些主流瀏覽器，ie可能會報錯，緣由參考這裏，edge 瀏覽器尚未辦法導出，正在嘗試...html

<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="utf-8">
        <title>table 導出excel表格</title>
    </head>
    <body>
        <div>  
            <button type="button" onclick="exportExcel('tableExcel')">導出Excel</button>  
        </div> 
        <div id="myDiv">  
            <table id="tableExcel" width="100%" border="1" cellspacing="0" cellpadding="0">  
                <tr>  
                    <td colspan="5" align="center">html 表格導出道Excel</td>  
                </tr>  
                <tr>  
                    <td>列標題1</td>  
                    <td>列標題2</td>  
                    <td>類標題3</td>  
                    <td>列標題4</td>  
                    <td>列標題5</td>  
                </tr>  
                <tr>  
                    <td>aaa</td>  
                    <td>bbb</td>  
                    <td>ccc</td>  
                    <td>ddd</td>  
                    <td>eee</td>  
                </tr>  
                <tr>  
                    <td>AAA</td>  
                    <td>BBB</td>  
                    <td>CCC</td>  
                    <td>DDD</td>  
                    <td>EEE</td>  
                </tr>  
                <tr>  
                    <td>FFF</td>  
                    <td>GGG</td>  
                    <td>HHH</td>  
                    <td>III</td>  
                    <td>JJJ</td>  
                </tr>  
            </table>  
        </div>  

        <script>
            var idTmr;  
              function  getExplorer() {  
                var explorer = window.navigator.userAgent;
                console.log(explorer); 
                //ie  
                if (explorer.indexOf("Trident") >= 0) {  
                    return 'ie';  
                }  
                //firefox  
                else if (explorer.indexOf("Firefox") >= 0) {  
                    return 'Firefox';  
                }  
                //Chrome  
                else if(explorer.indexOf("Chrome") >= 0){  
                    return 'Chrome';  
                }  
                //Opera  
                else if(explorer.indexOf("Opera") >= 0){  
                    return 'Opera';  
                }  
                //Safari  
                else if(explorer.indexOf("Safari") >= 0){  
                    return 'Safari';  
                }
            } 

            function exportExcel(tableid) {  
                if(getExplorer()=='ie'){  
                    var curTbl = document.getElementById(tableid);  
                    var oXL = new ActiveXObject("Excel.Application");  
                    var oWB = oXL.Workbooks.Add();  
                    var oSheet = oWB.ActiveSheet;  
                    var sel = document.body.createTextRange();  
                    sel.moveToElementText(curTbl);  
                    sel.select();  
                    sel.execCommand("Copy");  
                    oSheet.Paste();  
                    oXL.Visible = true; 
                }  
                else{  
                    tableToExcel(tableid)  
                }  
            }   

            var tableToExcel = (function() {  
                var uri = 'data:application/vnd.ms-excel;base64,',  
                        template = '<html><head><meta charset="UTF-8"></head><body><table>{table}</table></body></html>',  
                        base64 = function(s) { return window.btoa(unescape(encodeURIComponent(s))) },  
                        format = function(s, c) {  
                            return s.replace(/{(\w+)}/g,  
                                    function(m, p) { return c[p]; }) }  
                return function(table, name) {  
                    if (!table.nodeType) table = document.getElementById(table)  
                    var ctx = {worksheet: name || 'Worksheet', table: table.innerHTML}  
                    window.location.href = uri + base64(format(template, ctx))  
                }  
            })(); 
        </script>
    </body>
</html>