JS获取上传文件的绝对路径，兼容IE和FF

<html>
<head>
    <title>JS获取上传文件的绝对路径，兼容IE和FF</title>
    <script type="text/javascript">
function readFile(fileBrowser) {
    if (navigator.userAgent.indexOf("MSIE")!=-1)
        readFileIE(fileBrowser);
    else if (navigator.userAgent.indexOf("Firefox")!=-1 || navigator.userAgent.indexOf("Mozilla")!=-1)
        readFileFirefox(fileBrowser);
    else
        alert("Not IE or Firefox (userAgent=" + navigator.userAgent + ")");
}

function readFileFirefox(fileBrowser) {
    try {
        netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
    }
    catch (e) {
        alert('路径错误!');
        return;
    }

    var fileName=fileBrowser.value;
    var file = Components.classes["@mozilla.org/file/local;1"]
        .createInstance(Components.interfaces.nsILocalFile);
    try {
        file.initWithPath( fileName.replace(/\//g, "\\\\") );
    }
    catch(e) {
        if (e.result!=Components.results.NS_ERROR_FILE_UNRECOGNIZED_PATH) throw e;
        return;
    }

    if ( file.exists() == false ) {
        alert("File '" + fileName + "' not found.");
        return;
    }
    alert(file.path);
}

function readFileIE(fileBrowser) {
   alert(document.getElementById("fileBrowser").value);
}
    </script>

</head>
<body>
    <form name="form1">

    <input type="file" name="fileBrowser" size="50" onchange="readFile(this)" />
    </form>
</body>
</html>

posted on 2010-06-29 10:11 朱胜阅读(2878) 评论(3) 编辑收藏举报