最近项目需要用到easyui中的tree，在使用的过程中发现了一些问题，现在将这些总结如
1、用到的属性有：id，text，state，children，checked
2、当有子节点的时候，在添加state属性，如果先添加state=“closed”，会出现空的文件夹点击时会继续加载整棵树
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前台页面
<!DOCTYPE HTML>
<html lang="en-US">
<head>
<title>tree例子</title>
<script type="text/javascript">
$(function(){
//左侧功能树
$('#categoryTree').tree({
checkbox:false, ? //是否有复选框
lines:true, ? ? ? //行线
animate:true, ?//动画效果
url:'zhtxlAction!treeListData.action', //请求url
onClick:function(node){
$(this).tree('toggle', node.target); //切换效果
//点击事件
}
});
});
</script>
</head>
<body>
<!-- 左侧功能树 -->
<ul id="categoryTree"></ul>
</body>
</html>
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后台代码：
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?//通讯录树列表
public void treeListData(){
try {
//获取公共通讯录节点
Ggtxl g = ggtxlService.selectByPrimaryKey("1");
Map<String, Object> publicMap = new HashMap<String, Object>();
publicMap.put("id", g.getJgDm());
publicMap.put("text", g.getMc());
//获取公共通讯录下的子节点省民政厅
getGgtxlExample();
com.itic.reis.persistence.model.example.zh.txlgl.ZhGgtxlExample.Criteria criteria1 = ggtxlExample.createCriteria();
criteria1.andScbjEqualTo("0");
criteria1.andSjjgDmEqualTo(g.getJgDm());
List<Ggtxl> r1List = ggtxlService.selectByExample(ggtxlExample);//数据库中省级组织机构
if(r1List != null && r1List.size() > 0){
List<Object> sjList = new ArrayList<Object>(); //存放省级map数据
for (Ggtxl ggtxl1 : r1List) {
Map<String, Object> map1 = new HashMap<String, Object>();
map1.put("id", ggtxl1.getJgDm());
map1.put("text", ggtxl1.getMc());
//获取省下的州市级节点
ggtxlExample.clear();
com.itic.reis.persistence.model.example.zh.txlgl.ZhGgtxlExample.Criteria criteria2 = ggtxlExample.createCriteria();
criteria2.andScbjEqualTo("0");
criteria2.andSjjgDmEqualTo(ggtxl1.getJgDm());
List<Ggtxl> r2List = ggtxlService.selectByExample(ggtxlExample);//数据库中的州市级
if(r2List != null && r2List.size() > 0){
List<Object> zsList = new ArrayList<Object>(); //存放州市map数据
for (Ggtxl ggtxl2 : r2List) {
Map<String, Object> map2 = new HashMap<String, Object>();
map2.put("id", ggtxl2.getJgDm());
map2.put("text", ggtxl2.getMc());
//获取区县级节点
ggtxlExample.clear();
com.itic.reis.persistence.model.example.zh.txlgl.ZhGgtxlExample.Criteria criteria3 = ggtxlExample.createCriteria();
criteria3.andScbjEqualTo("0");
criteria3.andSjjgDmEqualTo(ggtxl2.getJgDm());
List<Ggtxl> r3List = ggtxlService.selectByExample(ggtxlExample);//数据库中的区县级
if(r3List != null && r3List.size() > 0){
List<Object> qxList = new ArrayList<Object>();
for (Ggtxl ggtxl3 : r3List) {
Map<String, Object> map3 = new HashMap<String, Object>();
map3.put("id", ggtxl3.getJgDm());
map3.put("text", ggtxl3.getMc());
qxList.add(map3);
}
map2.put("children", qxList);
map2.put("state", "closed");
}
zsList.add(map2);
}
map1.put("children", zsList);
}
sjList.add(map1);
}
publicMap.put("children", sjList);
}
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//获取个人通讯录根节点
Grtxl gr = grtxlService.selectByPrimaryKey("1");
Map<String, Object> grMap = new HashMap<String, Object>();
grMap.put("id", gr.getJgDm());
grMap.put("text", gr.getMc());
//获取个人通讯录下的一级节点
getGrtxlExample();
com.itic.reis.persistence.model.example.zh.txlgl.ZhGrtxlExample.Criteria criteria4 = grtxlExample.createCriteria();
criteria4.andScbjEqualTo("0");
criteria4.andSjjgDmEqualTo(gr.getJgDm());
List<Grtxl> gr1List = grtxlService.selectByExample(grtxlExample);//数据库中个人通讯录下的一级子节点
if(gr1List != null && gr1List.size() > 0){
List<Object> firstList = new ArrayList<Object>(); //存放一级map数据
for (Grtxl grtxl1 : gr1List) {
Map<String, Object> grMap1 = new HashMap<String, Object>();
grMap1.put("id", grtxl1.getJgDm());
grMap1.put("text", grtxl1.getMc());
//获取个人通讯录下的二级节点
grtxlExample.clear();
com.itic.reis.persistence.model.example.zh.txlgl.ZhGrtxlExample.Criteria criteria5 = grtxlExample.createCriteria();
criteria5.andScbjEqualTo("0");
? ?criteria5.andSjjgDmEqualTo(grtxl1.getJgDm());
List<Grtxl> gr2List = grtxlService.selectByExample(grtxlExample);
if(gr2List != null && gr2List.size() > 0){
List<Object> secondList = new ArrayList<Object>(); //存放二级map数据
for (Grtxl grtxl2 : gr2List) {
Map<String, Object> gr2Map = new HashMap<String, Object>();
gr2Map.put("id", grtxl2.getJgDm());
gr2Map.put("text", grtxl2.getMc());
secondList.add(gr2Map);
}
grMap1.put("children", secondList);
grMap1.put("state", "closed");
}
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firstList.add(grMap1);
}
grMap.put("children", firstList);
}
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//创建总List用于存放个人和公共通讯录
List<Object> totalList = new ArrayList<Object>();
totalList.add(publicMap);
totalList.add(grMap);
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log.info("总通讯录:"+totalList);
responseJSONObject(totalList);
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} catch (Exception e) {
log.info("获取功能树异常",e);
}
}