proTree是一款jQuery文件树形菜单插件，利用数组导入文件树形结构菜单样式效果。

js代码

<script type="text/javascript" src="js/proTree.js" ></script>
<script type="text/javascript">
//后台传入的 标题列表
var arr = [{
		id: 1,
		name: "一级标题",
		pid: 0
	}, {
		id: 2,
		name: "二级标题",
		pid: 0
	}, {
		id: 3,
		name: "2.1级标题",
		pid: 2
	}, {
		id: 4,
		name: "2.2级标题",
		pid: 2
	}, {
		id: 5,
		name: "1.1级标题",
		pid: 1
	}, {
		id: 6,
		name: "1.2级标题",
		pid: 1
	}, {
		id: 7,
		name: "1.21级标题",
		pid: 6
	}, {
		id: 8,
		name: "三级标题",
		pid: 0
	}, {
		id: 9,
		name: "1.22级标题",
		pid: 6
	}, {
		id: 10,
		name: "1.221级标题",
		pid: 9
	}, {
		id: 11,
		name: "1.2211级标题",
		pid: 10
	}, {
		id: 12,
		name: "1.2212级标题",
		pid: 10
	}

];
//标题的图标是集成bootstrap 的图标  更改 请参考bootstrap的字体图标替换自己想要的图标
$(".innerUl").ProTree({
	arr: arr,
	simIcon: "fa fa-file-o",//单个标题字体图标 不传默认glyphicon-file
	mouIconOpen: "fa fa-folder-open-o",//含多个标题的打开字体图标  不传默认glyphicon-folder-open
	mouIconClose:"fa fa-folder-o",//含多个标题的关闭的字体图标  不传默认glyphicon-folder-close
	callback: function(id,name) {
		alert("你选择的id是" + id + "，名字是" + name);
	}

})
</script>