jQuery zTree树插件简单使用教程

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>

html元素

<div>
 <ul id="treedemo" class="ztree"></ul>
</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>

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>

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" };

  }

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);
  }

tree实体类

public class treeinfo {

  private string id;
  private string pid;
  private string name;
  private string isparent;
  }

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。