easyui 导出 excel

 <div style="margin-bottom:5px" id="tb">
 <a href="#" class="easyui-linkbutton" onclick="return Save_Excel()" iconCls="icon-save" plain="true" title="导出excel文件"></a>
 </div>
 <table id="dg"></table>
 <script>
         function Save_Excel() {//导出Excel文件
             //getExcelXML有一个JSON对象的配置，配置项看了下只有title配置，为excel文档的标题
             var data = $('#dg').datagrid('getExcelXml', { title: 'datagrid import to excel' }); //获取datagrid数据对应的excel需要的xml格式的内容
             //用ajax发动到动态页动态写入xls文件中
             var url = 'datagrid-to-excel.ashx'; //如果为asp注意修改后缀
             $.ajax({ url: url, data: { data: data }, type: 'POST', dataType: 'text',
                 success: function (fn) {
                     alert('导出excel成功！');
                     window.location = fn; //执行下载操作
                 },
                 error: function (xhr) {
                     alert('动态页有问题\nstatus：' + xhr.status + '\nresponseText：' + xhr.responseText)
                 }
             });
             return false;
         }
         $(function () {
             $('#dg').datagrid({
                 singleSelect: true,
                 toolbar:'#tb',
                 url: 'product.json',
                 fitColumns: true, pagination: true, pageSize: 3,
                 title: 'easyui datagrid数据导出excel文件示例',
                 width: 400,
                 height: 300,
                 columns: [[{ field: 'itemid', width: 80, title: 'Item ID' },
                  { field: 'productname', width: 100, editor: 'text', title: 'Product Name' },
                  { field: 'listprice', width: 80, align: 'right', title: 'List Pirce' },
                  { field: 'unitcost', width: 80, align: 'right', title: 'Unit Cost'}]]
             });
         });
     </script>

2.

new Ext.Button({
    text: '导出到Excel',
    handle: function() {
        var vExportContent = grid.getExcelXml();
        if (Ext.isIE6 || Ext.isIE7 || Ext.isSafari || Ext.isSafari2 || Ext.isSafari3) {
            if (! Ext.fly('frmDummy')) {
                var frm = document.createElement('form');
                frm.id = 'frmDummy';
                frm.name = id;
                frm.className = 'x-hidden';
                document.body.appendChild(frm);
            }
            Ext.Ajax.request({
                url: '/exportexcel.php',
                method: 'POST',
                form: Ext.fly('frmDummy'),
                callback: function(o, s, r) {
                    //alert(r.responseText);
                },
                isUpload: true,
                params: {exportContent: vExportContent}
            })
        } else {
            document.location = 'data:application/vnd.ms-excel;base64,' + Base64.encode(vExportContent);
        }
});