html怎么d出以哥对话框用于选择文件夹路径得

代码如下：

BufferedWriter bw = null

OutputStreamWriter osw = null

String headStr = "attachmentfilename=\"" + fileName + "\""

response.setContentType("APPLICATION/OCTET-STREAM")

response.setHeader("Content-Disposition", headStr)

osw = new OutputStreamWriter(outs, "GB2312")

bw = new BufferedWriter(osw)

这个只适用于IE

<script type="text/javascript">

var Shell = new ActiveXObject("Shell.Application")

var Folder = Shell.BrowseForFolder(0, "", 0x0040, 0x11)

</script>

<input type="button" value="下载" onclick="window.document.execCommand('SaveAs')">

仅限IE

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