js导出excel兼容各个主流浏览器

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废话不多说直接上代码

<html><head><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 method1(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,',              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><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>{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></head><body><table id="WDL">  <tr>    <td>1</td>    <td>WDL</td>    <td>23</td>    <td>134242</td>    <td>上海</td>  </tr>  <tr>    <td>2</td>    <td>YY</td>    <td>23</td>    <td>134242</td>    <td>北京</td>  </tr></table><input id="Button1" type="button" value="导出EXCEL"         onclick="javascript:method1('WDL')" /></body></html>

以上代码只能导出当前页，上边代码是网上找的，
研究之后发现，想导出全部数据也很简单，只需要ajax请求数据，然后组装后把值赋值给table

 var ctx = {worksheet: name || 'Worksheet', table: 123//此处写ajax请求数据组装后的内容，比如是123，导出就是123}

但导出所有数据一般应该后端来写，要不会很慢
有不足之处还望之处

追加，发现这个不能指定文件名，我们可以利用a 标签的download属性
具体代码如下

<html><head> <meta 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 method1(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,',              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>'              +'<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>{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))                        document.getElementById("Awdl").href = uri + base64(format(template, ctx));                        document.getElementById("Awdl").click();                }            })()    </script></head><body><table id="wdl">  <tr>    <td>1</td>    <td>WDL</td>    <td>23</td>    <td>134242</td>    <td>上海</td>  </tr>  <tr>    <td>2</td>    <td>YY</td>    <td>23</td>    <td>134242</td>    <td>北京</td>  </tr></table><a id="Awdl"  style="display:none;" download="WDL.xls"></a><input id="Button1" type="button" value="导出EXCEL"         onclick="javascript:method1('wdl')" /></body></html>

至此基本到处excel已实现

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