导出EXCEL 表单设置

<form  id="exportData" method="post" target="hidden_iframe">
    <iframe name="hidden_iframe" style="display:none"></iframe>
    </form>



  var url="${base!}/msisa/workflow/expVtitleDetailsExcel.action";
        var exportData=document.getElementById("exportData");
        exportData.action=url;
        exportData.submit();