javascript:ActiveXObject 使用

前提IE必须加此站点为信任 

写本地文件：
var fso = new ActiveXObject("Scripting.FileSystemObject");
 tmpFolder = fso.GetSpecialFolder(2);
 var fileName=tmpFolder+"//"+fileNamestr+".xls";
 viewer.SaveReport(fileName);
fileName=fileName.replace(////g, "////");

改写<input type="file" name="file1">或<html:file property="file1" size="60"  value="浏览..."></html:file>默认路径
document.all["file1"].focus(); 
var  WshShell=new  ActiveXObject("WScript.Shell"); 
window.clipboardData.setData("Text","<%=fileName%>");  
WshShell.sendKeys("^v");