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Js访问本地文件

2012-02-11 20:49 211 查看

1.

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head>
<title>Excel Test</title>
<script language="javascript">
function readEx() {
var ExcelSheet ;
var wb;
try {
//alert("GetAppVersion() start");
ExcelSheet     = new ActiveXObject("Excel.Application");
alert(ExcelSheet .Version);
// read start
// wb = ExcelSheet.Workbooks.open("d:\\test.xls");
wb = ExcelSheet.Workbooks.open("http://10.1.1.143:8080/canon_sample/data/test.xls");
var objsheet =  wb.Worksheets("Sheet1");
var v = objsheet.cells(1,1);
alert("cells(1,1) = " + v);
ExcelSheet.Save();
// read end
// 使EXCEL窗口可见
ExcelSheet.Visible = true;
}
catch(e) {
if (ExcelSheet != undefined){
alert('Error happened : ' + e);
ExcelSheet.Quit();
}
return '';
}
}
function writeEx() {
var ExcelSheet ;
var wb;
//alert("write() start");
try {
ExcelSheet     = new ActiveXObject("Excel.Application");
//alert(ExcelSheet .Version);
// write start
ExcelSheet.Visible = true;
ExcelSheet.Workbooks.Add();
ExcelSheet.ActiveSheet.Cells(1,1).Value = "This is column A, row 1";
ExcelSheet.SaveAs("c:\\TEST.XLS");
// write end
ExcelSheet.Quit();
}
catch(e) {
if (ExcelSheet != undefined){
alert('Error happened : ' + e);
ExcelSheet.Quit();
}
return '';
}
}
</script>
</head>
<body>
<b>
Excel Test
</b>
<br><br>
<input type="button" onclick="readEx();" value=" Read "/> 
<input type="button" onclick="writeEx();" value=" Write "/>
</body>
</html>


2.JS读取本地excel文件

<script>
function ReadExcel()
{
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();
}
</script>
<html>
<input type="file" id="upfile" /><input type="button" onclick="ReadExcel();" value="read">
<br>
<textarea id="txtArea" cols=50 rows=10></textarea>
</html>

请问JS可否读写浏览器本地硬盘上的文件？

JS规范上写着：JS是一个安全性的语言。不能访问本地硬盘。但它又提供了这样几个函数，通过以Scripting.FileSystemObject为参数调用ActiveXObject()方法来创建对象对文件进行操作。

如File.Delete()

<html>
<body>
<script language ="JScript">
function remove()
{
var my object;
myObject = new ActiovXObject("Scripting.FileSystemObject");
var f = myObject.GetFile("c: / / mytest.txt");
f.Delete();
}
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标签：  button excel html null function 浏览器
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