jquery zTree插件 json 数据详解

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>材料类别</title>
     <link rel="stylesheet" href="../../Scripts/zTree_v3/css/demo.css" type="text/css">
    <link rel="stylesheet" href="../../Scripts/zTree_v3/css/zTreeStyle/zTreeStyle.css"
        type="text/css">

    <script type="text/javascript" src="../../Scripts/zTree_v3/js/jquery-1.4.4.min.js"></script>

    <script type="text/javascript" src="../../Scripts/zTree_v3/js/jquery.ztree.core-3.5.js"></script>
 
<script type="text/javascript">
        var setting = {
            data: {
                simpleData: {
                    enable: true
                }
            },

            callback: {
                onClick: zTreeOnClick
            }
        };

        function zTreeOnClick(event, treeId, treeNode) {
            parent.frames["MatTypeMainFrame"].document.all["txtMatName"].value = treeNode.name;
        };
                var zNodes = [
                            { name: '材料类别', open: true,
                                children: [
                            { name: '主要材料',
                                children: [
                            { name: '黑色金属',
                                children: [
                            { name: '钢筋' },
                            { name: '槽钢' },
                            { name: '角钢' },
                            { name: '工字钢' },
                            { name: '钢板' },
                            { name: '焊管' },
                            { name: '方管' },
                            { name: '扁钢' },
                            { name: '扁铁' },
                            { name: '镀锌管' },
                            { name: 'H型钢' },
                            { name: '方钢' },
                            { name: '铁皮' },
                            { name: '带钢' },
                            { name: '其它' },
                            { name: '合金板' }, ]
                            },
                            { name: '有色金属',
                                children: [
                            { name: '铜类材料' },
                            { name: '铝制材料' },
                            { name: '铅、锌、锡制材料' },
                            ]
                            },
                            { name: '地材',
                                children: [
                            { name: '砖类' },
                            { name: '砂类' },
                            { name: '石子类' },
                            { name: '白灰粉' },
                            { name: '白灰膏' },
                            { name: '瓦类' },
                            { name: '其它' },
                            { name: '土类' }, ]
                            },
                            { name: '木竹矽酸盐制品',
                                children: [
                            { name: '竹笆子' },
                            { name: '跳板' },
                            { name: '细木工板' },
                            { name: '三合板' },
                            { name: '竹竿' },
                            { name: '商品混凝土' },
                            { name: '水泥' },
                            { name: '加气块' },
                            { name: '白水泥' },
                            { name: '苯板' },
                            { name: '混凝土管' },
                            { name: '排烟道' },
                            { name: '挤塑板' },
                            { name: '玻璃' },
                            { name: '地砖、墙面砖类' },
                            { name: '砂浆类' },
                            { name: '其它' }, ]
                            },
                            { name: '金属制品',
                                children: [{ name: '螺丝' },
                            { name: '螺帽' },
                            { name: '网类' },
                            { name: '锁类' },
                            { name: '山型卡及卡扣' },
                            { name: '收口网' },
                            { name: '钉类' },
                            { name: '螺栓' },
                            { name: '合页' },
                            { name: '钢丝' },
                            { name: '铁丝' },
                            { name: '直螺纹套筒及套筒头子' },
                            { name: '钢、铁丝绳类' },
                            { name: '电焊条' },
                            { name: '其他类' },
                            { name: '彩钢板' },
                            { name: '钢丝绳' },
                            { name: '黑铁丝' },
                            ]
                            },
                            { name: '油漆化工及油料',
                                children: [
                            { name: '油漆' },
                            { name: '涂料' },
                            { name: '稀释剂' },
                            { name: '腻子' },
                            { name: '涂料' },
                            { name: '粉、水、脂、剂、膏、胶、液、油、气等化工制品' },
                            { name: '乳胶漆' },
                            { name: '其它' },
                            { name: '铝合金面漆' },
                            { name: '铝合金底漆' },
                            { name: '铝合金稀料' }, { name: '塑化剂' }, ]
                            },
                            { name: '水暖材料',
                                children: [
                            { name: 'PVC排水管' },
                            { name: 'PP-R给水管' },
                            { name: 'PP-R给水管管件' },
                            { name: 'PVC排水管管件' },
                            { name: '存水弯' },
                            { name: '弯头' },
                            { name: '阀门' },
                            { name: '消防器材' },
                            { name: '卫生洁具及配件' },
                            { name: '地漏' },
                            { name: '其它材料' },
                            { name: '水泵' },
                            { name: '计量仪器' },
                            { name: '其他' },
                            ]
                            },
                            { name: '电工器材',
                                children: [
                            { name: '电线' },
                            { name: '电缆' },
                            { name: '电箱' },
                            { name: '灯具及配件' },
                            { name: '保险材料' },
                            { name: '开关、插座及附属材料' },
                            { name: '计量仪器' },
                            { name: '管线设备及附属材料' },
                            { name: '电缆连接件及附属材料' },
                            { name: '变压器' },
                            { name: '稳压器' },
                            { name: '启动器' },
                            { name: '瓷瓶' },
                            { name: '托线盘' },
                            { name: '镇流器' },
                            { name: '线鼻子' },
                            { name: 'PVC线管及管件' },
                            { name: '线盒' },
                            { name: '其它' },
                            { name: '日用电器' },
                            { name: '铜编织袋' }, ]
                            },
                            { name: '其他材料',
                                children: [
                            { name: '电池', children: [] },
                            { name: '灌类', children: [] },
                            { name: '刷子类', children: [] },
                            { name: '笔、刀类', children: [] },
                            { name: '纸、袋类', children: [] },
                            { name: '桶类', children: [] },
                            { name: '生活用品', children: [] },
                            { name: '线、绳、布、带类', children: [] },
                            { name: '管类', children: [] },
                            { name: '柱卡及卡垫类', children: [] },
                            { name: '杂品', children: [
                            { name: '砼车空载费' },
                        { name: '脚手架轮子' },
                            { name: '叉车费' },
                            { name: '维修费' },
                            { name: '砼机开关' },
                            { name: '打砼机开关' },
                            { name: '打砼机扶手' },
                            { name: '运费'}]
                            },
                            { name: '胶带', children: [] },
                            { name: '消声器', children: [] },
                            { name: '连轴器', children: []}]}]
                            },
                            { name: '周转材料',
                                children:
                            [
                            { name: '钢管', children: [] },
                            { name: '扣件', children: [] },
                            { name: '顶托', children: [] },
                            { name: '支托', children: [] },
                            { name: '模板', children: [] },
                            { name: '木方', children: [] },
                            { name: '钢跳板', children: [] }, ]
                            },
                            { name: '配件材料',
                                children: [
                            { name: '机械配件',
                                children: [
                            { name: '电机' },
                            { name: '修理类配件' },
                            { name: '轴承' },
                            { name: '地泵管口' },
                            { name: '地泵管口' },
                            { name: '离合器' },
                            { name: '整流模块' },
                            { name: '尼龙件' },
                            { name: '润滑脂泵' },
                            { name: '丙轮' }
                            ]
                            },
                            { name: '', children: [] },
                            { name: '', children: [] },
                            { name: '', children: [] },
                            { name: '烟道', children: [] },
                            { name: '', children: [] },
                            { name: '门窗玻璃总成', children: [] }, ]
                            },
                            { name: '半成品材料',
                                children: [
                            { name: '钢铁构件', children: [] },
                            { name: '木制品', children: [] }
                            ]
                            },
                            { name: '低值易耗品',
                                children: [
                            { name: '土木工具', children: [] },
                            { name: '切削工具', children: [{ name: '磨光机' }, ] },
                            { name: '起重运输工具', children: [] },
                            { name: '电焊及其它工具', children: [] },
                            { name: '劳保用品安全防护', children: [{ name: '劳保用品' }, { name: '安全网'}] }, ]
                            },
                            { name: '塑化剂', children: [], isParent: true },
                            { name: '金属制品', children: [], isParent: true }
                            ]
                            }
                        ];

 $(document).ready(function() {

                    $.fn.zTree.init($("#treeDemo"), setting, zNodes);

        });
   </script>

</head>
<body>
    <form id="form1" runat="server">
    <div class="content_wrap">
        <div class="zTreeDemoBackground left">
            <ul id="treeDemo" class="ztree">
            </ul>
        </div>
    </div>
    </form>
</body>
</html>
静态数据直接生成jQuery+zTree
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>材料类别</title>
    <link rel="stylesheet" href="../../Scripts/zTree_v3/css/demo.css" type="text/css">
    <link rel="stylesheet" href="../../Scripts/zTree_v3/css/zTreeStyle/zTreeStyle.css"
        type="text/css">

    <script type="text/javascript" src="../../Scripts/zTree_v3/js/jquery-1.4.4.min.js"></script>

    <script type="text/javascript" src="../../Scripts/zTree_v3/js/jquery.ztree.core-3.5.js"></script>

    <script type="text/javascript">
        var setting = {
            data: {
                simpleData: {
                    enable: true
                }
            },

            callback: {
                onClick: zTreeOnClick
            }
        };
//获取当前选中的节点的值传给iframe中的textbox
        function zTreeOnClick(event, treeId, treeNode) {
            parent.frames["MatTypeMainFrame"].document.all["txtMatName"].value = treeNode.name;
        };
 $(document).ready(function() {
            $.ajax({
                type: "post",
                contentType: "application/json",
                url: 'GetMatrailsTypeTree.ashx',
                dataType: "json",
                error: function() {//请求失败处理函数    
                    alert('请求失败');
                },
                success: function(data) {
                    var zNodes = eval("(" + data + ")"); //强调一下,这里的eval中的括号必须要加,后台获取到的json数据是字符串,而不是数据对象,但是上面的静态数据就是数据对象,这就是这两个的区别,这个后台获取的json数据一定要转化一下才能识别出来
                    $.fn.zTree.init($("#treeDemo"), setting, zNodes);
                }
            });
 });
 </script>

</head>
<body>
    <form id="form1" runat="server">
    <div class="content_wrap">
        <div class="zTreeDemoBackground left">
            <ul id="treeDemo" class="ztree">
            </ul>
        </div>
    </div>
    </form>
</body>
</html>
后台获取json字符串数据
<%@ WebHandler Language="C#" Class="GetMatrailsTypeTree" %>

using System;
using System.Web;

public class GetMatrailsTypeTree : IHttpHandler
{

    public void ProcessRequest(HttpContext context)
    {
        context.Response.ContentType = "application/json";
        System.Text.StringBuilder str = new System.Text.StringBuilder();
        str.Append("[");//如果不成功的话去掉这个拼接字符串
        str.Append("{ name: '材料类别', open: true,");
        str.Append("     children: [");
        str.Append("  {");
        str.Append("   name: '主要材料',");
        str.Append("  children: [");
        str.Append(" {");
        str.Append("  name: '黑色金属',");
        str.Append("  children: [");
        str.Append(" { name: '钢筋' },");
        str.Append(" { name: '槽钢' },");
        str.Append(" { name: '角钢' },");
        str.Append(" { name: '工字钢' },");
        str.Append("  { name: '钢板' },");
        str.Append("  { name: '焊管' },");
        str.Append(" { name: '方管' },");
        str.Append(" { name: '扁钢' },");
        str.Append("{ name: '扁铁' },");
        str.Append(" { name: '镀锌管' },");
        str.Append(" { name: 'H型钢' },");
        str.Append(" { name: '方钢' },");
        str.Append(" { name: '铁皮' },");
        str.Append(" { name: '带钢' },");
        str.Append(" { name: '其它' },");
        str.Append("{ name: '合金板' }, ]");
        str.Append("  },");
        str.Append(" {");
        str.Append("    name: '有色金属',");
        str.Append("   children: [");
        str.Append(" { name: '铜类材料' },");
        str.Append("  { name: '铝制材料' },");
        str.Append("  { name: '铅、锌、锡制材料' },");
        str.Append("   ]");
        str.Append(" },");
        str.Append(" {");
        str.Append("    name: '地材',");
        str.Append("    children: [");
        str.Append(" { name: '砖类' },");
        str.Append(" { name: '砂类' },");
        str.Append(" { name: '石子类' },");
        str.Append(" { name: '白灰粉' },");
        str.Append(" { name: '白灰膏' },");
        str.Append(" { name: '瓦类' },");
        str.Append(" { name: '其它' },");
        str.Append(" { name: '土类' }, ]");
        str.Append("},");
        str.Append(" {");
        str.Append("    name: '木竹矽酸盐制品',");
        str.Append("  children: [");
        str.Append(" { name: '竹笆子' },");
        str.Append(" { name: '跳板' },");
        str.Append(" { name: '细木工板' },");
        str.Append("{ name: '三合板' },");
        str.Append(" { name: '竹竿' },");
        str.Append("  { name: '商品混凝土' },");
        str.Append(" { name: '水泥' },");
        str.Append(" { name: '加气块' },");
        str.Append(" { name: '白水泥' },");
        str.Append(" { name: '苯板' },");
        str.Append(" { name: '混凝土管' },");
        str.Append(" { name: '排烟道' },");
        str.Append(" { name: '挤塑板' },");
        str.Append(" { name: '玻璃' },");
        str.Append(" { name: '地砖、墙面砖类' },");
        str.Append(" { name: '砂浆类' },");
        str.Append(" { name: '其它' }, ]");
        str.Append(" },");
        str.Append("{");
        str.Append("   name: '金属制品',");
        str.Append(" children: [{ name: '螺丝' },");
        str.Append(" { name: '螺帽' },");
        str.Append(" { name: '网类' },");
        str.Append(" { name: '锁类' },");
        str.Append("{ name: '山型卡及卡扣' },");
        str.Append(" { name: '收口网' },");
        str.Append(" { name: '钉类' },");
        str.Append(" { name: '螺栓' },");
        str.Append(" { name: '合页' },");
        str.Append("{ name: '钢丝' },");
        str.Append(" { name: '铁丝' },");
        str.Append(" { name: '直螺纹套筒及套筒头子' },");
        str.Append(" { name: '钢、铁丝绳类' },");
        str.Append(" { name: '电焊条' },");
        str.Append(" { name: '其他类' },");
        str.Append("{ name: '彩钢板' },");
        str.Append("{ name: '钢丝绳' },");
        str.Append(" { name: '黑铁丝' },");
        str.Append("  ]");
        str.Append(" },");
        str.Append(" {");
        str.Append("    name: '油漆化工及油料',");
        str.Append("    children: [");
        str.Append(" { name: '油漆' },");
        str.Append(" { name: '涂料' },");
        str.Append(" { name: '稀释剂' },");
        str.Append("{ name: '腻子' },");
        str.Append("{ name: '涂料' },");
        str.Append(" { name: '粉、水、脂、剂、膏、胶、液、油、气等化工制品' },");
        str.Append(" { name: '乳胶漆' },");
        str.Append(" { name: '其它' },");
        str.Append(" { name: '铝合金面漆' },");
        str.Append(" { name: '铝合金底漆' },");
        str.Append(" { name: '铝合金稀料' }, { name: '塑化剂' }, ]");
        str.Append(" },");
        str.Append(" {");
        str.Append("    name: '水暖材料',");
        str.Append("    children: [");
        str.Append(" { name: 'PVC排水管' },");
        str.Append("{ name: 'PP-R给水管' },");
        str.Append(" { name: 'PP-R给水管管件' },");
        str.Append(" { name: 'PVC排水管管件' },");
        str.Append(" { name: '存水弯' },");
        str.Append(" { name: '弯头' },");
        str.Append("  { name: '阀门' },");
        str.Append(" { name: '消防器材' },");
        str.Append(" { name: '卫生洁具及配件' },");
        str.Append(" { name: '地漏' },");
        str.Append(" { name: '其它材料' },");
        str.Append(" { name: '水泵' },");
        str.Append(" { name: '计量仪器' },");
        str.Append(" { name: '其他' },");
        str.Append("     ]");
        str.Append(" },");
        str.Append(" {");
        str.Append("   name: '电工器材',");
        str.Append("   children: [");
        str.Append(" { name: '电线' },");
        str.Append(" { name: '电缆' },");
        str.Append(" { name: '电箱' },");
        str.Append("  { name: '灯具及配件' },");
        str.Append(" { name: '保险材料' },");
        str.Append(" { name: '开关、插座及附属材料' },");
        str.Append(" { name: '计量仪器' },");
        str.Append(" { name: '管线设备及附属材料' },");
        str.Append(" { name: '电缆连接件及附属材料' },");
        str.Append("{ name: '变压器' },");
        str.Append("  { name: '稳压器' },");
        str.Append("{ name: '启动器' },");
        str.Append(" { name: '瓷瓶' },");
        str.Append(" { name: '托线盘' },");
        str.Append(" { name: '镇流器' },");
        str.Append(" { name: '线鼻子' },");
        str.Append("{ name: 'PVC线管及管件' },");
        str.Append(" { name: '线盒' },");
        str.Append(" { name: '其它' },");
        str.Append(" { name: '日用电器' },");
        str.Append("{ name: '铜编织袋' }, ]");
        str.Append(" },");
        str.Append(" {");
        str.Append("  name: '其他材料',");
        str.Append("   children: [");
        str.Append(" { name: '电池', children: [] },");
        str.Append(" { name: '灌类', children: [] },");
        str.Append(" { name: '刷子类', children: [] },");
        str.Append(" { name: '笔、刀类', children: [] },");
        str.Append("  { name: '纸、袋类', children: [] },");
        str.Append(" { name: '桶类', children: [] },");
        str.Append(" { name: '生活用品', children: [] },");
        str.Append(" { name: '线、绳、布、带类', children: [] },");
        str.Append(" { name: '管类', children: [] },");
        str.Append(" { name: '柱卡及卡垫类', children: [] },");
        str.Append(" {");
        str.Append("   name: '杂品', children: [");
        str.Append("  { name: '砼车空载费' },");
        str.Append(" { name: '脚手架轮子' },");
        str.Append("  { name: '叉车费' },");
        str.Append("  { name: '维修费' },");
        str.Append("   { name: '砼机开关' },");
        str.Append(" { name: '打砼机开关' },");
        str.Append("  { name: '打砼机扶手' },");
        str.Append("  { name: '运费' }]");
        str.Append(" },");
        str.Append(" { name: '胶带', children: [] },");
        str.Append("  { name: '消声器', children: [] },");
        str.Append("  { name: '连轴器', children: [] }]");
        str.Append("  }]");
        str.Append("   },");
        str.Append(" {");
        str.Append("    name: '周转材料',");
        str.Append("     children:");
        str.Append(" [");
        str.Append("  { name: '钢管', children: [] },");
        str.Append(" { name: '扣件', children: [] },");
        str.Append("{ name: '顶托', children: [] },");
        str.Append("  { name: '支托', children: [] },");
        str.Append("  { name: '模板', children: [] },");
        str.Append(" { name: '木方', children: [] },");
        str.Append(" { name: '钢跳板', children: [] }, ]");
        str.Append("  },");
        str.Append(" {");
        str.Append("     name: '配件材料',");
        str.Append("     children: [");
        str.Append(" {");
        str.Append("  name: '机械配件',");
        str.Append("  children: [");
        str.Append(" { name: '电机' },");
        str.Append("{ name: '修理类配件' },");
        str.Append(" { name: '轴承' },");
        str.Append("{ name: '地泵管口' },");
        str.Append("{ name: '地泵管口' },");
        str.Append("  { name: '离合器' },");
        str.Append(" { name: '整流模块' },");
        str.Append(" { name: '尼龙件' },");
        str.Append(" { name: '润滑脂泵' },");
        str.Append(" { name: '丙轮' }");
        str.Append("    ]");
        str.Append("  },");
        str.Append("  { name: '门', children: [] },");
        str.Append(" { name: '窗', children: [] },");
        str.Append(" { name: '板', children: [] },");
        str.Append(" { name: '烟道', children: [] },");
        str.Append("  { name: '桩', children: [] },");
        str.Append(" { name: '门窗玻璃总成', children: [] }, ]");
        str.Append(" },");
        str.Append(" {");
        str.Append("    name: '半成品材料',");
        str.Append("   children: [");
        str.Append("{ name: '钢铁构件', children: [] },");
        str.Append(" { name: '木制品', children: [] }");
        str.Append("     ]");
        str.Append(" },");
        str.Append(" {");
        str.Append("   name: '低值易耗品',");
        str.Append("  children: [");
        str.Append("  { name: '土木工具', children: [] },");
        str.Append(" { name: '切削工具', children: [{ name: '磨光机' }, ] },");
        str.Append("  { name: '起重运输工具', children: [] },");
        str.Append("{ name: '电焊及其它工具', children: [] },");
        str.Append("{ name: '劳保用品安全防护', children: [{ name: '劳保用品' }, { name: '安全网' }] }, ]");
        str.Append(" },");
        str.Append(" { name: '塑化剂', children: [], isParent: true },");
        str.Append(" { name: '金属制品', children: [], isParent: true }");
        str.Append("    ]");
        str.Append("  }");
        str.Append("]");//如果测试不通过的话把这个拼接的去掉
        context.Response.Write(str.ToString());
    }

    public bool IsReusable
    {
        get
        {
            return false;
        }
    }

}
GetMatrailsTypeTree.ashx

在这里跟大家分享一下自己的心得,因为为了搞这个jquery zTree,各种方法都试了,像什么$.parseJSON(),但是总是在jquery.ztree.core-3.5.js文件中的

getNodeCacheId: function(tId) {
return tId.substring(tId.lastIndexOf("_")+1);
},

提示

zTree 无法获取属性“lastIndexOF”的值,

最后经过一番努力查证,各种调试,找到了解决方法,就是前台和后台json数据还是有差别的,大家可以参考一下:http://www.ztree.me/v3/faq.php#_204

希望此博客对大家有用,关注一下我的微博@战族狼魂

原文地址:https://www.cnblogs.com/652769324qq/p/Ztree.html