【笔记】ztree的使用-白红宇

【笔记】ztree的使用

阅读量：6533 次

发布时间：2019-06-24

本文共 5700 字，大约阅读时间需要 19 分钟。

引用的js和css：

//异步加载节点var setting = {    data: {        key : {            name : "name"        },        simpleData: {            enable: true,            idKey: "id",            pIdKey: "pId",            rootPId: 0        }    },    async: {        //异步加载        enable: true,        url:  "${ctx}/admin/learn/course!publicCourseTree.do",        autoParam : [ "id" ],        dataType : "json",        type : "post"    },    check : {        enable : false,        chkStyle : "radio",        radioType : "level"    },    callback: {        beforeExpand: beforeExpand,        onAsyncSuccess: onAsyncSuccess,        onAsyncError: onAsyncError,        onClick : function(event, treeId, treeNode) {            var    courseID = treeNode.id;                $("#courseID").val(courseID);                $.post("${ctx}/admin/learn/course!getCourseTreeInfo.do?id="+courseID,                {
    "parm":""},                function(data) {                    $.each(data, function(i,item) {                        $("#codeSM").html(item.id);                        $("#name").html(item.name);                        $("#flag").val(item.status);                           $("#description").html(item.description);                           $("#createtime").html(item.createtime);                           if(item.status=="1"){                               $("#updateflag").val("取消发布");                               $("#status").html("已发布");                           }else{                               $("#updateflag").val("发布");                               $("#status").html("未发布");                           }                           if(item.imgurl!=null){                               $("#img").attr("src","${ctx}/uploads/"+item.imgurl);                           }else{                               $("#img").attr("src","");                           }                       });                 }, "json");           }    }};

function beforeExpand(treeId, treeNode) {

if (!treeNode.isAjaxing) {

return true;

} else {

alert("zTree 正在下载数据中，请稍后展开节点。。。");

return false;

}

function onAsyncSuccess(event, treeId, treeNode, msg) {

}

function onAsyncError() {

alert(" 数据加载失败");

}

function createTree() {

$.ajax({

url: "${ctx}/admin/learn/course!publicCourseTree.do", //url action是方法的名称

data: { id: -1 },

type: 'Get',

dataType: "json", //可以是text，如果用text，返回的结果为字符串；如果需要json格式的，可是设置为json

success: function (data) {

$.fn.zTree.init($("#_courseTreeSM"), setting, eval(data));

error: function (msg) {

alert(" 数据加载失败！" + msg);

}

});

}

$(document).ready(function () {

createTree();

});

//删除var tree = $.fn.zTree.getZTreeObj("_stationTreeSM");                            var node = tree.getNodeByParam("ID", response.id, null);                            tree.removeNode(node);

var node = treeObj.getNodeByParam("ID", response.parentid, null);//添加treeObj.addNodes(node, {ID : response.newStationID, NAME : $("#nameAS").val()});//修改node.NAME = $('#nameAS').val();treeObj.updateNode(node);

public List
      
       > getPublicCourseTree(String id, Integer orgID)    {        List
       
        
         > list1 = new ArrayList
         
          
           >(); List
           
            
             > list2 = new ArrayList
             
              
               >(); if (null == id && !"".equals(id)){ String hql="SELECT t.id, t.name, t.parentid as pid,t.description,DATE_FORMAT(t.createtime, '%Y-%m-%d') createtime,t.status,t.imgurl,(SELECT COUNT(t2.id) FROM c_publiccourse_tab t2 WHERE t2.parentid = t.id) coun FROM c_publiccourse_tab t WHERE t.PARENTID = -1 and t.orgid='"+orgID+"'"; Query query = super.createSQLQuery(hql).addScalar( "id" , Hibernate.STRING).addScalar( "name" , Hibernate.STRING).addScalar( "pid" , Hibernate.STRING) .addScalar( "description" , Hibernate.STRING).addScalar( "createtime" , Hibernate.STRING).addScalar( "status" , Hibernate.STRING).addScalar( "imgurl" , Hibernate.STRING).addScalar( "coun" , Hibernate.STRING).setResultTransformer(Transformers.ALIAS_TO_ENTITY_MAP); list1=query.list(); }else{ String hql = "SELECT t.id, t.name , t.parentid as pid,t.description,DATE_FORMAT(t.createtime, '%Y-%m-%d') createtime,t.status,t.imgurl,(SELECT COUNT(t2.id) FROM c_publiccourse_tab t2 WHERE t2.parentid = t.id) coun FROM c_publiccourse_tab t WHERE t.PARENTID ='" + id +"' and t.orgid='"+orgID+"' order by t.id asc"; Query query = super.createSQLQuery(hql).addScalar( "id" , Hibernate.STRING).addScalar( "name" , Hibernate.STRING).addScalar( "pid" , Hibernate.STRING) .addScalar( "description" , Hibernate.STRING).addScalar( "createtime" , Hibernate.STRING).addScalar( "status" , Hibernate.STRING).addScalar( "imgurl" , Hibernate.STRING).addScalar( "coun" , Hibernate.STRING).setResultTransformer(Transformers.ALIAS_TO_ENTITY_MAP); list1=query.list(); } for (Map
               
                 map : list1){ map.put("open", true); String parentid = map.get("pid").toString(); if (parentid.equals("-1")){ map.put("open", true); int count = Integer.parseInt(map.get("coun").toString()); if (count > 0){ map.put("isParent", true); }else{ map.put("isParent", false); } }else{ int count = Integer.parseInt(map.get("coun").toString()); if (count > 0){ map.put("isParent", true); } } list2.add(map); } return list2; } List
                
                 
                  > data=publicCourseManager.getPublicCourseTree2(id,orgID); try { response.getWriter().write(JSONArray.fromObject(data).toString()); } catch (IOException e) { e.printStackTrace(); }