Treegrid的动态加载实例代码

$('#goods_type_menu').menu('show', {
left : e.pageX,
top : e.pageY
});
},
onExpand : function(row){
var children = $("#goods_type_treegrid").treegrid('getChildren',row.id);
if(children.length<=0){
row.leaf=true;
$("#goods_type_treegrid").treegrid('refresh', row.id);
}
}
});
});
</script>
<table id="goods_type_treegrid"></table>

2、controller

@RequestMapping("/treegrid")
@ResponseBody
public List<GoodsTypePage> treegrid(GoodsTypePage goodsTypePage) {
if(null==goodsTypePage || "".equals(goodsTypePage.getId()) || null == goodsTypePage.getId()){
goodsTypePage.setId("NULL");
}
return goodsTypeService.treegrid(goodsTypePage);
}

3、service

@Override
// 缓存数据
public List<GoodsTypePage> treegrid(GoodsTypePage goodsTypePage) {
String hql = "";
if(null==goodsTypePage || "".equals(goodsTypePage.getId()) || "NULL".equals(goodsTypePage.getId())){
hql = "from GoodsType t where t.tgoodstype.id is NULL order by t.seq";
}else{
hql = "from GoodsType t where t.tgoodstype.id = '" +goodsTypePage.getId()+"' order by t.seq";
}
List<GoodsType> brList = goodsTypeDao.find(hql);
List<GoodsTypePage> nl = new ArrayList<GoodsTypePage>();
if (brList != null && brList.size() > 0) {
for (GoodsType br : brList) {
GoodsTypePage r = new GoodsTypePage();
BeanUtils.copyProperties(br, r);
if(br.getTgoodstype()!=null){
r.setPname(br.getTgoodstype().getText());
r.setPid(br.getTgoodstype().getId());
}
r.setState("closed");
nl.add(r);
}
}
return nl;
}