js实现excel数据导入

js实现excel数据导入<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
     <title>Untitled Page</title>
</head>
<script language="javascript" type="text/javascript">
function importXLS(fileName)
{
     objCon = new ActiveXObject("ADODB.Connection");
     objCon.Provider = "Microsoft.Jet.OLEDB.4.0";
     objCon.ConnectionString = "Data Source=" + fileName + ";Extended Properties=Excel 8.0;";
     objCon.CursorLocation = 1;
     objCon.Open;
     var strQuery;
     //Get the SheetName
     var strSheetName = "Sheet1$";
     var rsTemp =   new ActiveXObject("ADODB.Recordset");
     rsTemp = objCon.OpenSchema(20);
     if(!rsTemp.EOF)
     strSheetName = rsTemp.Fields("Table_Name").Value;     rsTemp = null     rsExcel =   new ActiveXObject("ADODB.Recordset");
     strQuery = "SELECT * FROM [" + strSheetName + "]";
     rsExcel.ActiveConnection = objCon;
     rsExcel.Open(strQuery);
     while(!rsExcel.EOF)
     {
     for(i = 0;i<rsExcel.Fields.Count;++i)
     {
     alert(rsExcel.Fields(i).value);
     }
     rsExcel.MoveNext;
     }
     // Close the connection and dispose the file
     objCon.Close;
     objCon =null;
     rsExcel = null;
}
</script>
</head>
<body>
<input type="file" id="f" />
<input type="button" id="b" value="import" onclick="if(f.value=='')alert('请选择xls文件');else importXLS(f.value)" />
</body>
</html>