页面嵌入隐藏iframe实现导出功能

<div style="display: none">
<form action="" name="exportExcel" id="exportExcel" target="export
method="post" accept-charset="utf-8"></form>
<iframe name="export" id="export"></iframe>
</div>

var f = document.getElementById('exportExcel');
var actionUrl = 'envElecPriceAction!downLoadDetailFrist.action?envElecPrice.beginTime=' + beginTime
+ '&envElecPrice.endTime=' + endTime
+ '&envElecPrice.zoneId='  + zoneId
+ '&envElecPrice.pollSourceId=' + pollSourceId
+ '&envElecPrice.pollSourceName=' + Ext.getCmp('sourceNameId33').getValue()
+ '&envElecPrice.labelId=' + Ext.getCmp('groupLabelComboBoxId3').getValue()
+ '&envElecPrice.polluteName='+ polluteData;
f.action = actionUrl;
f.submit();