一个简单的树形菜单

树形菜单

一、效果图

二、页面

三、样式 tree.css

html,
body {
	padding: 0 0;
	margin: 0 0;
}

@media (min-width: 768px) {
	.nav-tabs.nav-justified> li> a {
		border-bottom: 1px solid #ddd;
		border-radius: 4px 4px 0 0;
	}
	.nav-tabs.nav-justified> .active> a,
	.nav-tabs.nav-justified> .active> a:hover,
	.nav-tabs.nav-justified> .active> a:focus {
		border-bottom-color: #fff;
	}
}

.nav-pills> li {
	float: left;
}

.nav-pills> li> a {
	border-radius: 4px;
}


/*.nav-pills > li + li {
  margin-left: 2px;
}*/

.nav {
	padding-left: 0;
	margin-bottom: 0;
	list-style: none;
}

.nav> li {
	position: relative;
	display: block;
}

.nav > li > a {
	position: relative;
	display: block;
	padding: 10px 15px;
}

.nav > li > a:hover,
.nav > li > a:focus {
  text-decoration: none;
  background-color: #eee;
}

.nav> li.disabled> a {
	color: #777;
}

.nav> li.disabled> a:hover,
.nav> li.disabled> a:focus {
	color: #777;
	text-decoration: none;
	cursor: not-allowed;
	background-color: transparent;
}

.nav .open> a,
.nav .open> a:hover,
.nav .open> a:focus {
	background-color: #eee;
	border-color: #428bca;
}

.nav .nav-divider {
	height: 1px;
	margin: 9px 0;
	overflow: hidden;
	background-color: #e5e5e5;
}

.nav> li> a> img {
	max-width: none;
}

.nav-pills> li.active> a,
.nav-pills> li.active> a:hover,
.nav-pills> li.active> a:focus {
	color: #fff;
	background-color: #428bca;
}

a.list-group-item.active> .badge,
.nav-pills> .active> a> .badge {
	color: #428bca;
	background-color: #fff;
}

.nav-pills> li> a> .badge {
	margin-left: 3px;
}

@font-face {
	font-family: 'Glyphicons Halflings';
	src: url('../fonts/glyphicons-halflings-regular.eot');
	src: url('../fonts/glyphicons-halflings-regular.eot?#iefix') format('embedded-opentype'), url('../fonts/glyphicons-halflings-regular.woff') format('woff'), url('../fonts/glyphicons-halflings-regular.ttf') format('truetype'), url('../fonts/glyphicons-halflings-regular.svg#glyphicons_halflingsregular') format('svg');
}

.glyphicon {
	position: relative;
	top: 1px;
	display: inline-block;
	font-family: 'Glyphicons Halflings';
	font-style: normal;
	font-weight: normal;
	line-height: 1;
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
}

.glyphicon-asterisk:before {
	content: "\2a";
}

.glyphicon-plus:before {
	content: "\2b";
}

.glyphicon-euro:before,
.glyphicon-eur:before {
	content: "\20ac";
}

.glyphicon-minus:before {
	content: "\2212";
}

.glyphicon-cloud:before {
	content: "\2601";
}

.glyphicon-envelope:before {
	content: "\2709";
}

.glyphicon-pencil:before {
	content: "\270f";
}

.glyphicon-glass:before {
	content: "\e001";
}

.glyphicon-music:before {
	content: "\e002";
}

.glyphicon-search:before {
	content: "\e003";
}

.glyphicon-heart:before {
	content: "\e005";
}

.glyphicon-star:before {
	content: "\e006";
}

.glyphicon-star-empty:before {
	content: "\e007";
}

.glyphicon-user:before {
	content: "\e008";
}

.glyphicon-film:before {
	content: "\e009";
}

.glyphicon-th-large:before {
	content: "\e010";
}

.glyphicon-th:before {
	content: "\e011";
}

.glyphicon-th-list:before {
	content: "\e012";
}

.glyphicon-ok:before {
	content: "\e013";
}

.glyphicon-remove:before {
	content: "\e014";
}

.glyphicon-zoom-in:before {
	content: "\e015";
}

.glyphicon-zoom-out:before {
	content: "\e016";
}

.glyphicon-off:before {
	content: "\e017";
}

.glyphicon-signal:before {
	content: "\e018";
}

.glyphicon-cog:before {
	content: "\e019";
}

.glyphicon-trash:before {
	content: "\e020";
}

.glyphicon-home:before {
	content: "\e021";
}

.glyphicon-file:before {
	content: "\e022";
}

.glyphicon-time:before {
	content: "\e023";
}

.glyphicon-road:before {
	content: "\e024";
}

.glyphicon-download-alt:before {
	content: "\e025";
}

.glyphicon-download:before {
	content: "\e026";
}

.glyphicon-upload:before {
	content: "\e027";
}

.glyphicon-inbox:before {
	content: "\e028";
}

.glyphicon-play-circle:before {
	content: "\e029";
}

.glyphicon-repeat:before {
	content: "\e030";
}

.glyphicon-refresh:before {
	content: "\e031";
}

.glyphicon-list-alt:before {
	content: "\e032";
}

.glyphicon-lock:before {
	content: "\e033";
}

.glyphicon-flag:before {
	content: "\e034";
}

.glyphicon-headphones:before {
	content: "\e035";
}

.glyphicon-volume-off:before {
	content: "\e036";
}

.glyphicon-volume-down:before {
	content: "\e037";
}

.glyphicon-volume-up:before {
	content: "\e038";
}

.glyphicon-qrcode:before {
	content: "\e039";
}

.glyphicon-barcode:before {
	content: "\e040";
}

.glyphicon-tag:before {
	content: "\e041";
}

.glyphicon-tags:before {
	content: "\e042";
}

.glyphicon-book:before {
	content: "\e043";
}

.glyphicon-bookmark:before {
	content: "\e044";
}

.glyphicon-print:before {
	content: "\e045";
}

.glyphicon-camera:before {
	content: "\e046";
}

.glyphicon-font:before {
	content: "\e047";
}

.glyphicon-bold:before {
	content: "\e048";
}

.glyphicon-italic:before {
	content: "\e049";
}

.glyphicon-text-height:before {
	content: "\e050";
}

.glyphicon-text-width:before {
	content: "\e051";
}

.glyphicon-align-left:before {
	content: "\e052";
}

.glyphicon-align-center:before {
	content: "\e053";
}

.glyphicon-align-right:before {
	content: "\e054";
}

.glyphicon-align-justify:before {
	content: "\e055";
}

.glyphicon-list:before {
	content: "\e056";
}

.glyphicon-indent-left:before {
	content: "\e057";
}

.glyphicon-indent-right:before {
	content: "\e058";
}

.glyphicon-facetime-video:before {
	content: "\e059";
}

.glyphicon-picture:before {
	content: "\e060";
}

.glyphicon-map-marker:before {
	content: "\e062";
}

.glyphicon-adjust:before {
	content: "\e063";
}

.glyphicon-tint:before {
	content: "\e064";
}

.glyphicon-edit:before {
	content: "\e065";
}

.glyphicon-share:before {
	content: "\e066";
}

.glyphicon-check:before {
	content: "\e067";
}

.glyphicon-move:before {
	content: "\e068";
}

.glyphicon-step-backward:before {
	content: "\e069";
}

.glyphicon-fast-backward:before {
	content: "\e070";
}

.glyphicon-backward:before {
	content: "\e071";
}

.glyphicon-play:before {
	content: "\e072";
}

.glyphicon-pause:before {
	content: "\e073";
}

.glyphicon-stop:before {
	content: "\e074";
}

.glyphicon-forward:before {
	content: "\e075";
}

.glyphicon-fast-forward:before {
	content: "\e076";
}

.glyphicon-step-forward:before {
	content: "\e077";
}

.glyphicon-eject:before {
	content: "\e078";
}

.glyphicon-chevron-left:before {
	content: "\e079";
}

.glyphicon-chevron-right:before {
	content: "\e080";
}

.glyphicon-plus-sign:before {
	content: "\e081";
}

.glyphicon-minus-sign:before {
	content: "\e082";
}

.glyphicon-remove-sign:before {
	content: "\e083";
}

.glyphicon-ok-sign:before {
	content: "\e084";
}

.glyphicon-question-sign:before {
	content: "\e085";
}

.glyphicon-info-sign:before {
	content: "\e086";
}

.glyphicon-screenshot:before {
	content: "\e087";
}

.glyphicon-remove-circle:before {
	content: "\e088";
}

.glyphicon-ok-circle:before {
	content: "\e089";
}

.glyphicon-ban-circle:before {
	content: "\e090";
}

.glyphicon-arrow-left:before {
	content: "\e091";
}

.glyphicon-arrow-right:before {
	content: "\e092";
}

.glyphicon-arrow-up:before {
	content: "\e093";
}

.glyphicon-arrow-down:before {
	content: "\e094";
}

.glyphicon-share-alt:before {
	content: "\e095";
}

.glyphicon-resize-full:before {
	content: "\e096";
}

.glyphicon-resize-small:before {
	content: "\e097";
}

.glyphicon-exclamation-sign:before {
	content: "\e101";
}

.glyphicon-gift:before {
	content: "\e102";
}

.glyphicon-leaf:before {
	content: "\e103";
}

.glyphicon-fire:before {
	content: "\e104";
}

.glyphicon-eye-open:before {
	content: "\e105";
}

.glyphicon-eye-close:before {
	content: "\e106";
}

.glyphicon-warning-sign:before {
	content: "\e107";
}

.glyphicon-plane:before {
	content: "\e108";
}

.glyphicon-calendar:before {
	content: "\e109";
}

.glyphicon-random:before {
	content: "\e110";
}

.glyphicon-comment:before {
	content: "\e111";
}

.glyphicon-magnet:before {
	content: "\e112";
}

.glyphicon-chevron-up:before {
	content: "\e113";
}

.glyphicon-chevron-down:before {
	content: "\e114";
}

.glyphicon-retweet:before {
	content: "\e115";
}

.glyphicon-shopping-cart:before {
	content: "\e116";
}

.glyphicon-folder-close:before {
	content: "\e117";
}

.glyphicon-folder-open:before {
	content: "\e118";
}

.glyphicon-resize-vertical:before {
	content: "\e119";
}

.glyphicon-resize-horizontal:before {
	content: "\e120";
}

.glyphicon-hdd:before {
	content: "\e121";
}

.glyphicon-bullhorn:before {
	content: "\e122";
}

.glyphicon-bell:before {
	content: "\e123";
}

.glyphicon-certificate:before {
	content: "\e124";
}

.glyphicon-thumbs-up:before {
	content: "\e125";
}

.glyphicon-thumbs-down:before {
	content: "\e126";
}

.glyphicon-hand-right:before {
	content: "\e127";
}

.glyphicon-hand-left:before {
	content: "\e128";
}

.glyphicon-hand-up:before {
	content: "\e129";
}

.glyphicon-hand-down:before {
	content: "\e130";
}

.glyphicon-circle-arrow-right:before {
	content: "\e131";
}

.glyphicon-circle-arrow-left:before {
	content: "\e132";
}

.glyphicon-circle-arrow-up:before {
	content: "\e133";
}

.glyphicon-circle-arrow-down:before {
	content: "\e134";
}

.glyphicon-globe:before {
	content: "\e135";
}

.glyphicon-wrench:before {
	content: "\e136";
}

.glyphicon-tasks:before {
	content: "\e137";
}

.glyphicon-filter:before {
	content: "\e138";
}

.glyphicon-briefcase:before {
	content: "\e139";
}

.glyphicon-fullscreen:before {
	content: "\e140";
}

.glyphicon-dashboard:before {
	content: "\e141";
}

.glyphicon-paperclip:before {
	content: "\e142";
}

.glyphicon-heart-empty:before {
	content: "\e143";
}

.glyphicon-link:before {
	content: "\e144";
}

.glyphicon-phone:before {
	content: "\e145";
}

.glyphicon-pushpin:before {
	content: "\e146";
}

.glyphicon-usd:before {
	content: "\e148";
}

.glyphicon-gbp:before {
	content: "\e149";
}

.glyphicon-sort:before {
	content: "\e150";
}

.glyphicon-sort-by-alphabet:before {
	content: "\e151";
}

.glyphicon-sort-by-alphabet-alt:before {
	content: "\e152";
}

.glyphicon-sort-by-order:before {
	content: "\e153";
}

.glyphicon-sort-by-order-alt:before {
	content: "\e154";
}

.glyphicon-sort-by-attributes:before {
	content: "\e155";
}

.glyphicon-sort-by-attributes-alt:before {
	content: "\e156";
}

.glyphicon-unchecked:before {
	content: "\e157";
}

.glyphicon-expand:before {
	content: "\e158";
}

.glyphicon-collapse-down:before {
	content: "\e159";
}

.glyphicon-collapse-up:before {
	content: "\e160";
}

.glyphicon-log-in:before {
	content: "\e161";
}

.glyphicon-flash:before {
	content: "\e162";
}

.glyphicon-log-out:before {
	content: "\e163";
}

.glyphicon-new-window:before {
	content: "\e164";
}

.glyphicon-record:before {
	content: "\e165";
}

.glyphicon-save:before {
	content: "\e166";
}

.glyphicon-open:before {
	content: "\e167";
}

.glyphicon-saved:before {
	content: "\e168";
}

.glyphicon-import:before {
	content: "\e169";
}

.glyphicon-export:before {
	content: "\e170";
}

.glyphicon-send:before {
	content: "\e171";
}

.glyphicon-floppy-disk:before {
	content: "\e172";
}

.glyphicon-floppy-saved:before {
	content: "\e173";
}

.glyphicon-floppy-remove:before {
	content: "\e174";
}

.glyphicon-floppy-save:before {
	content: "\e175";
}

.glyphicon-floppy-open:before {
	content: "\e176";
}

.glyphicon-credit-card:before {
	content: "\e177";
}

.glyphicon-transfer:before {
	content: "\e178";
}

.glyphicon-cutlery:before {
	content: "\e179";
}

.glyphicon-header:before {
	content: "\e180";
}

.glyphicon-compressed:before {
	content: "\e181";
}

.glyphicon-earphone:before {
	content: "\e182";
}

.glyphicon-phone-alt:before {
	content: "\e183";
}

.glyphicon-tower:before {
	content: "\e184";
}

.glyphicon-stats:before {
	content: "\e185";
}

.glyphicon-sd-video:before {
	content: "\e186";
}

.glyphicon-hd-video:before {
	content: "\e187";
}

.glyphicon-subtitles:before {
	content: "\e188";
}

.glyphicon-sound-stereo:before {
	content: "\e189";
}

.glyphicon-sound-dolby:before {
	content: "\e190";
}

.glyphicon-sound-5-1:before {
	content: "\e191";
}

.glyphicon-sound-6-1:before {
	content: "\e192";
}

.glyphicon-sound-7-1:before {
	content: "\e193";
}

.glyphicon-copyright-mark:before {
	content: "\e194";
}

.glyphicon-registration-mark:before {
	content: "\e195";
}

.glyphicon-cloud-download:before {
	content: "\e197";
}

.glyphicon-cloud-upload:before {
	content: "\e198";
}

.glyphicon-tree-conifer:before {
	content: "\e199";
}

.glyphicon-tree-deciduous:before {
	content: "\e200";
}

.tree-ul-first {
	background-color: #262222;
	margin-top: 0;
}

.tree-span-left {
	padding-left: 10px;
	padding-right: 10px;
}

.tree-span-right {
	right: 15px;
	position: absolute;
	top: auto;
}

.tree-ul-childs {
	background-color: #262222;
	display: none;
	height: auto;
}

.tree-ul-childs li,
.tree-ul-first li {
	width: 100%;
	background-color: #262222;
}

.tree-ul-childs li a,
.tree-ul-first li a {
	width: auto;
	position: relative;
	color: #E9E8E8;
	text-decoration: none;
}

.defuat-left {
	padding-left: 8%;
}

.tree-ul-first > li > a:hover,
.tree-ul-childs > li > a:hover,
.tree-ul-first > li > a:focus,
.tree-ul-childs > li > a:focus {
  text-decoration: none;
  background-color: #777;
}

四、jquery代码 tree.js

var treeData = {};

function getTree(obj, tree) {
	treeData = tree;
	var data = tree.data;
	var treeContentStart = "";
	var treeContentEnd = "";

	if(data.length > 0) {
		treeContentStart += '
';
		$.each(data, function(i, n) {
			var menuLeftIcon = n.menuLeftIcon ? n.menuLeftIcon : 'glyphicon glyphicon-paperclip';
			if(n.menuChildData && n.menuChildData.length > 0) {
				treeContentStart += '
' +
					'' +
					'' + n.menuName + '';
				treeContentStart += fillTreeData(n.menuChildData);
			} else {
				treeContentStart += '
' +
					'' +
					'' + n.menuName + '';
			}
			treeContentStart += '
';
		});
		treeContentEnd += "
";
	}
	obj.html(treeContentStart + treeContentEnd);
}

function fillTreeData(data) {
	var treeContentStart = "";
	var treeContentEnd = "";
	if(data.length > 0) {
		treeContentStart += '
';
		$.each(data, function(i, n) {
			var menuLeftIcon = n.menuLeftIcon ? n.menuLeftIcon : 'glyphicon glyphicon-paperclip';
			if(n.menuChildData && n.menuChildData.length > 0) {
				treeContentStart += '
' +
					'' + n.menuName + '';
				treeContentStart += fillTreeData(n.menuChildData);
			} else {
				treeContentStart += '
' +
					'' + n.menuName + '';
			}
			treeContentStart += '
';
		});
		treeContentEnd += "
";
	}
	return treeContentStart + treeContentEnd;
}

function openChildNotes(obj) {
	var o = $(obj);
	var showState = o.next().css("display");
	var leftOff = o.css("padding-left");
	var paddingLeft = leftOff.substring(0, leftOff.length - 2);
	if(showState == "block") {
		showState = "none";
		o.find("span").last().removeClass(treeData.clickIconAfter).addClass(treeData.clickIconBefore);
		o.next().find("li").find("a").css("padding-left", (parseInt(paddingLeft) - 20) + 'px');
		$("ul", o.next("ul")).css("display", showState);
		$("li a span.tree-span-right", o.next("ul")).removeClass(treeData.clickIconAfter).addClass(treeData.clickIconBefore);
	} else {
		showState = "block";
		o.find("span").last().removeClass(treeData.clickIconBefore).addClass(treeData.clickIconAfter);
		o.next().find("li").find("a").css("padding-left", (parseInt(paddingLeft) + 20) + 'px');
	}
	o.next("ul").css("display", showState);
}

到此一个简单的树形菜单就此完成。如有写的不好之处，希望大家提提意见。谢谢！