js如何读取客户端Excel文件

详细见 http://www.oejia.net/blog/2012/08/07/Js_read_xls.html

原理是利用了IE关于Excel的ActiveX插件，所以此功能只支持IE系列浏览器

 var tempStr = "";var filePath= document.all.upfile.value;var oXL = new ActiveXObject("Excel.application"); var oWB = oXL.Workbooks.open(filePath);oWB.worksheets(1).select(); var oSheet = oWB.ActiveSheet;try{for(var i=2;i<46;i++){if(oSheet.Cells(i,2).value =="null" || oSheet.Cells(i,3).value =="null" )break;var a = oSheet.Cells(i,2).value.toString()=="undefined"?"":oSheet.Cells(i,2).value;tempStr+=("  "+oSheet.Cells(i,2).value+"  "+oSheet.Cells(i,3).value+"  "+oSheet.Cells(i,4).value+"  "+oSheet.Cells(i,5).value+"  "+oSheet.Cells(i,6).value+"\n");}}catch(e){document.all.txtArea.value = tempStr;} document.all.txtArea.value = tempStr;oXL.Quit();CollectGarbage();