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前言
zTree 是一个依靠 jQuery 实现的多功能 “树插件”。优异的性能、灵活的配置、多种功能的组合是 zTree 最大优点。
支持静态 和 Ajax 异步加载节点数据.
在开发中我们常需要用到树状的展示.
下载地址：zTree
静态zTree开发流程
引入资源
<link rel="stylesheet" href="../../../css/zTreeStyle/zTreeStyle.css" type="text/css"> <script type="text/javascript" src="../../../js/jquery-1.4.4.min.js"></script> <script type="text/javascript" src="../../../js/jquery.ztree.core.js"></script></div>
html元素
<div> <ul id="treeDemo" class="ztree"></ul> </div></div>
JS方式一-简单json数据格式
<SCRIPT type="text/javascript">
<!--
var setting = {
data: {
simpleData: {
enable: true
}
}
};
var zNodes =[
{ id:1, pId:0, name:"父节点1 - 展开", open:true},
{ id:11, pId:1, name:"父节点11 - 折叠"},
{ id:111, pId:11, name:"叶子节点111"},
{ id:112, pId:11, name:"叶子节点112"},
{ id:113, pId:11, name:"叶子节点113"},
{ id:114, pId:11, name:"叶子节点114"},
{ id:12, pId:1, name:"父节点12 - 折叠"},
{ id:121, pId:12, name:"叶子节点121"},
{ id:122, pId:12, name:"叶子节点122"},
{ id:123, pId:12, name:"叶子节点123"},
{ id:124, pId:12, name:"叶子节点124"},
{ id:13, pId:1, name:"父节点13 - 没有子节点", isParent:true},
{ id:2, pId:0, name:"父节点2 - 折叠"},
{ id:21, pId:2, name:"父节点21 - 展开", open:true},
{ id:211, pId:21, name:"叶子节点211"},
{ id:212, pId:21, name:"叶子节点212"},
{ id:213, pId:21, name:"叶子节点213"},
{ id:214, pId:21, name:"叶子节点214"},
{ id:22, pId:2, name:"父节点22 - 折叠"},
{ id:221, pId:22, name:"叶子节点221"},
{ id:222, pId:22, name:"叶子节点222"},
{ id:223, pId:22, name:"叶子节点223"},
{ id:224, pId:22, name:"叶子节点224"},
{ id:23, pId:2, name:"父节点23 - 折叠"},
{ id:231, pId:23, name:"叶子节点231"},
{ id:232, pId:23, name:"叶子节点232"},
{ id:233, pId:23, name:"叶子节点233"},
{ id:234, pId:23, name:"叶子节点234"},
{ id:3, pId:0, name:"父节点3 - 没有子节点", isParent:true}
];
$(document).ready(function(){
$.fn.zTree.init($("#treeDemo"), setting, zNodes);
});
//-->
</SCRIPT>
</div>
JS方式二-标准json数据格式
<SCRIPT type="text/javascript">
<!--
var setting = { };
var zNodes =[
{ name:"父节点1 - 展开", open:true,
children: [
{ name:"父节点11 - 折叠",
children: [
{ name:"叶子节点111"},
{ name:"叶子节点112"},
{ name:"叶子节点113"},
{ name:"叶子节点114"}
]},
{ name:"父节点12 - 折叠",
children: [
{ name:"叶子节点121"},
{ name:"叶子节点122"},
{ name:"叶子节点123"},
{ name:"叶子节点124"}
]},
{ name:"父节点13 - 没有子节点", isParent:true}
]},
{ name:"父节点2 - 折叠",
children: [
{ name:"父节点21 - 展开", open:true,
children: [
{ name:"叶子节点211"},
{ name:"叶子节点212"},
{ name:"叶子节点213"},
{ name:"叶子节点214"}
]},
{ name:"父节点22 - 折叠",
children: [
{ name:"叶子节点221"},
{ name:"叶子节点222"},
{ name:"叶子节点223"},
{ name:"叶子节点224"}
]},
{ name:"父节点23 - 折叠",
children: [
{ name:"叶子节点231"},
{ name:"叶子节点232"},
{ name:"叶子节点233"},
{ name:"叶子节点234"}
]}
]},
{ name:"父节点3 - 没有子节点", isParent:true}
];
$(document).ready(function(){
$.fn.zTree.init($("#treeDemo"), setting, zNodes);
});
//-->
</SCRIPT>
</div>
异步zTree加载
前面的配置相同,在此不再阐述.主要是js不同.
异步JS
var setting = {
//可勾选
check: {
enable: true
},
data : {
simpleData : {
enable : true
}
}
};
function initTree(){
var payFreq = $("#payFreq").val();
var fyType = $('#fyType').val();
var setHzType = $('#setHzType').val();
$.ajax({
url : "/demo/initTree",
data : {payFreq:payFreq,
fyType:fyType,
setHzType:setHzType
},
success: function(object){
var nodes = "";
//拼接simple格式的json字符串
$.each(object.data, function(i,item) {
nodes+="{id:'"+item.id+"', pId:'"+item.pid+"', name:'"+item.name+"', isParent:'"+item.isParent+"'},";
});
var zNodes = "["+nodes+"]";
var json = eval('(' + zNodes + ')');
//console.log(json);
zTreeInit(json);
}
});
}
/* 初始化树 */
function zTreeInit(json) {
$.fn.zTree.init($("#treeDemo"), setting, json);
var zTree = $.fn.zTree.getZTreeObj("treeDemo");
//全部展开
zTree.expandAll(true);
//Y代表勾选时,N代表取消勾选 p代表父节点,s代表字节点
setting.check.chkboxType = { "Y" : "ps", "N" : "ps" };
}
</div>
java代码
Controller层
@RequestMapping("initTree")
@ResponseBody
public DataMessage initTree(String setHzType,String payFreq,String fyType){
params.put("setHzType", setHzType);
params.put("fyType", fyType);
params.put("fkmattr_xt", fkmattr_xt);
//获取treeinfo列表
List<TreeInfo> treeInfos = feeTransferService.initTree(params);
return DataMessage.successData(treeInfos);
}
</div>
tree实体类
public class TreeInfo {
private String id;
private String pid;
private String name;
private String isParent;
}
</div>
说明
更多实例可以参看zTree中文文档
或参见zTree GitHub 里面更多的示例和说明。
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。
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