用js将HTML的Table导出为Excel（可自定义：表格样式）

心已赠人 2022-06-04 02:17 312阅读 0赞

<html>
    <head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <script type="text/javascript" language="javascript">
            var idTmr;
            function  getExplorer() {
                var explorer = window.navigator.userAgent ;
                //ie
                if (explorer.indexOf("MSIE") >= 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 table2excel(tableid) {//整个表格拷贝到EXCEL中
                if(getExplorer()=='ie')
                {
                    var curTbl = document.getElementById(tableid);
                    var oXL = new ActiveXObject("Excel.Application");
                     
                    //创建AX对象excel
                    var oWB = oXL.Workbooks.Add();
                    //获取workbook对象
                    var xlsheet = oWB.Worksheets(1);
                    //激活当前sheet
                    var sel = document.body.createTextRange();
                    sel.moveToElementText(curTbl);
                    //把表格中的内容移到TextRange中
                    sel.select();
                    //全选TextRange中内容
                    sel.execCommand("Copy");
                    //复制TextRange中内容 
                    xlsheet.Paste();
                    //粘贴到活动的EXCEL中      
                    oXL.Visible = true;
                    //设置excel可见属性
     
                    try {
                        var fname = oXL.Application.GetSaveAsFilename("Excel.xls", "Excel Spreadsheets (*.xls), *.xls");
                    } catch (e) {
                        print("Nested catch caught " + e);
                    } finally {
                        oWB.SaveAs(fname);
     
                        oWB.Close(savechanges = false);
                        //xls.visible = false;
                        oXL.Quit();
                        oXL = null;
                        //结束excel进程，退出完成
                        //window.setInterval("Cleanup();",1);
                        idTmr = window.setInterval("Cleanup();", 1);
     
                    }
                }
                else
                {
                    tableToExcel(tableid)
                }
            }
            function Cleanup() {
                window.clearInterval(idTmr);
                CollectGarbage();
            }
            var tableToExcel = (function() {
           		 var uri = 'data:application/vnd.ms-excel;base64,',
    		 //格式化导出表格的样式
    		 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>'+
    		    ' <style type="text/css">'+
    		    '.excelTable  {'+
    		    'border-collapse:collapse;'+
    		     ' border:thin solid #999; '+
    		    '}'+
    		    '   .excelTable  th {'+
    		    '   border: thin solid #999;'+
    		    '  padding:20px;'+
    		    '  text-align: center;'+
    		    '  border-top: thin solid #999;'+
    		    ' background-color: #E6E6E6;'+
    		    ' }'+
    		    ' .excelTable  td{'+
    		    ' border:thin solid #999;'+
    		    '  padding:2px 5px;'+
    		    '  text-align: center;'+
    		    ' }</style>'+
    		    '</head><body ><table class="excelTable">{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))
    				var downloadLink = document.createElement("A");
    				downloadLink.href = uri + base64(format(template, ctx));
    				downloadLink.download = '导出excel信息.xls';
    				downloadLink.target = '_blank';
    				document.body.appendChild(downloadLink);
    				downloadLink.click();
    				document.body.removeChild(downloadLink);
                  }
                })()
    </script>
     
    </head>
    <body>
    <table width="100%" cellspacing="0" cellpadding="0" border="1px" id="test">
    	<tr>
    		<th width="20%">姓名</th>
    		<th width="20%">性别</th>
    		<th width="20%">年龄</th>
    		<th width="20%">部门</th>
    		<th width="20%">角色</th>
    	</tr>
    	<tr>
    		<td>张三</td>
    		<td>男</td>
    		<td>28</td>
    		<td>销售部</td>
    		<td>经理</td>
    	</tr>
    	<tr>
    		<td>李四</td>
    		<td>男</td>
    		<td>27</td>
    		<td>研发部</td>
    		<td>项目总监</td>
    	</tr>
    	<tr>
    		<td>王燕</td>
    		<td>女</td>
    		<td>29</td>
    		<td>电子商务部</td>
    		<td>主管</td>
    	</tr>
    </table>
    <br>
    <input id="Button1" type="button" value="导出EXCEL" onclick="javascript:table2excel('test')" style="padding:5px;margin-top:20px;"/>
    </body>
    </html>

说明：创建一个A标签，设置A的download属性可以实现指定文件名