html文件：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="content-type" content="text/html; charset=utf8"/>
<title>jQuery async treeview</title>
<link rel="stylesheet" href="../jquery.treeview.css" />
<link rel="stylesheet" href="../red-treeview.css" />
<link rel="stylesheet" href="screen.css" />
<script src="../lib/jquery.js" type="text/javascript"></script>
<script src="../lib/jquery.cookie.js" type="text/javascript"></script>
<script src="../jquery.treeview.js" type="text/javascript"></script>
<!-- 异步加载数据时用到的库 -->
<script src="../jquery.treeview.async.js" type="text/javascript"></script>
<script type="text/javascript">
$(document).ready(function(){
$("#black").treeview({
url: "source.php"
})
});
</script>
</head>
<body>
<h1 id="banner"><a href="http://bassistance.de/jquery-plugins/jquery-plugin-treeview/%22%3EjQuery Treeview Plugin</a> Demo</h1>
<div id="main">
<ul>
<li><a href=".">Main Demo</a></li>
<li><a href="source.phps">服务器端代码</a></li>
</ul>
<h4>Lazy-loading tree</h4>
<ul id="black">
</ul>
</div>
</body></html>
php文件：
<?php
if ($_REQUEST['root'] == "source"){
$province=array();
$dir="C:/QQDownload";
$handle=opendir($dir.".");
while (false !== ($file = readdir($handle)))
{
if ($file != "." && $file != "..") {
$arr=array();
$arr["id"]= "";
$arr["text"]=$file;
if(is_dir("C:/QQDownload/".$file)){
$arr["hasChildren"]= true;
$arr["id"]= "C:/QQDownload/".$file;
}
$province[]=$arr;
}
}
$abc=json_encode($province);
echo $abc;
closedir($handle);
}else{
$id=$_REQUEST ['root'];
$dir=$id;
$city = array ();
$handle=opendir($dir.".");
while (false !== ($file = readdir($handle)))
{
if ($file != "." && $file != "..") {
$arr=array();
$arr["id"]= "";
$arr["text"]=$file;
if(is_dir($dir."/".$file)){
$arr["hasChildren"]= true;
$arr["id"]= $dir."/".$file;
}
$city[]=$arr;
}
}
echo json_encode ( $city );
closedir($handle);
}
?>
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