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zTree+php动态加载menu

2014-04-22 17:11 309 查看

1.前端代码

<!DOCTYPE html>
<html lang="zh-cn">
<head>
<title>index.html</title>

<meta charset="utf-8">

<link rel="stylesheet" href="zTree_v3/css/zTreeStyle/zTreeStyle.css">
<script type="text/javascript" src="zTree_v3/js/jquery-1.4.4.min.js"></script>
<script type="text/javascript"  src="zTree_v3/js/jquery.ztree.core-3.5.js"></script>
<style>
body {
background-color: white;
margin: 0;
padding: 0;
text-align: center;
}

div,p,table,th,td {
list-style: none;
margin: 0;
padding: 0;
color: #333;
font-size: 12px;
font-family: dotum, Verdana, Arial, Helvetica, AppleGothic, sans-serif;
}

#testIframe {
margin-left: 10px;
}
</style>

<SCRIPT type="text/javascript">
var zTree;
var demoIframe;
var menuNode;
var setting = {
view : {
dblClickExpand : false,
showLine : true,
selectedMulti : false
},
data : {
simpleData : {
enable : true,
idKey : "id",
pIdKey : "pId",
rootPId : ""
}
},
callback : {
beforeClick : function(treeId, treeNode) {
var zTree = $.fn.zTree.getZTreeObj("tree");
if (treeNode.isParent) {
zTree.expandNode(treeNode);
return false;
} else {
demoIframe.attr("src", treeNode.file);
return true;
}
}
}
};

$(function(){
$.post("src/dao/conn.php", function(data){
menuNode=$.parseJSON(data);
for(var i=0;i<menuNode.length;i++){
menuNode[i].name=decodeURI(menuNode[i].name);
}
var t = $("#tree");
t = $.fn.zTree.init(t, setting, menuNode);
demoIframe = $("#testIframe");
demoIframe.bind("load", loadReady);
console.info(menuNode);
});
});

function loadReady() {
var bodyH = demoIframe.contents().find("body").get(0).scrollHeight,
htmlH = demoIframe.contents().find("html").get(0).scrollHeight,
maxH = Math.max(bodyH, htmlH),
minH = Math.min(bodyH, htmlH),
h = demoIframe.height() >= maxH ? minH : maxH;
if (h < 530)
h = 530;
demoIframe.height(h);
}
</SCRIPT>

</head>

<body>
<TABLE border=0 height=600px align=left>
<TR>
<TD width=260px align=left valign=top style="BORDER-RIGHT: #999999 1px dashed">
<ul id="tree" class="ztree" style="width:260px; overflow:auto;"></ul>
</TD>
<TD width=770px align=left valign=top><IFRAME ID="testIframe"
Name="testIframe" FRAMEBORDER=0 SCROLLING=AUTO width=100%
height=600px SRC="php/1.html"></IFRAME></TD>
</TR>
</TABLE>
</body>
</html>

2.后台conn.php代码

<?php
$mysqli  = new  mysqli ( 'localhost' ,  'root' ,  'root' ,  'php' );
mysqli_query($mysqli, "set names gbk");
if ( $mysqli -> connect_error ) {
die(  $mysqli -> connect_errno + $mysqli -> connect_error );
}
$sql='select * from menu';
$res=mysqli_query($mysqli, $sql);
$array=array();
while ($row=mysqli_fetch_row($res)){
$menu=array(
"id"=>$row[1],
"pId"=>$row[0],
"name"=>urlencode(iconv('gb2312','utf-8',$row[2])),
"open"=>$row[3],
"file"=>$row[4],
);
array_push($array, $menu);
}
echo json_encode($array);

$mysqli -> close ();

?>

3.数据库表内容

mysql> select * from menu;
+------+-----+---------+------+------------+
| pId  | id  | name    | open | file       |
+------+-----+---------+------+------------+
| NULL |   1 | 最简单        |    0 | NULL       |
| NULL |   2 | 简单        |    0 | NULL       |
| NULL |   3 | 超简单        | NULL | NULL       |
|    2 |  21 | 案例3       | NULL | php/1.html |
|    1 | 101 | 简单        | NULL | NULL       |
|    1 | 102 | 案例2       | NULL | php/2.html |
|  101 | 201 | 案例1       | NULL | php/1.html |
|    3 | 301 | 超简单1       | NULL | php/1.html |
+------+-----+---------+------+------------+
8 rows in set (0.00 sec)

4.结果

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