Rumah >Java >javaTutorial >详解Java easyui树形表格TreeGrid的示例代码(图)
这篇文章主要为大家详细介绍了Java easyui树形表格TreeGrid的实现代码,具有一定的参考价值,感兴趣的小伙伴们可以参考一下
自己搞了一下午,终于用JAVA实现了数据网格。记录一下实现的代码。(PS:此处的easyui是1.5版本,楼主只贴了核心的代码)
实现图
JSP页面
<head> //权限列表 $( document ).ready(function(){ var parentId = 0; $('#tt').treegrid({ url:'queryPrivilege.action?parentId='+parentId, idField:'id', treeField:'RecordStatus', columns:[[ {title:'id',field:'id',width:180}, {field:'RecordStatus',title:'RecordStatus',width:180} , {field:'PrivilegeOperation',title:'PrivilegeOperation',width:180} ]], onBeforeExpand:function(row){ //动态设置展开查询的url $(this).treegrid('options').url = 'queryPrivilege.action?parentId='+row.id; } }); }) </script> </head> <body> <table id="tt" style="width:600px;height:400px"></table> </body>
ACTION层代码
//输出 public PrintWriter out()throws IOException{ HttpServletResponse response=ServletActionContext.getResponse(); response.setContentType("text/html"); response.setContentType("text/plain; charset=utf-8"); PrintWriter out= response.getWriter(); return out; } public String queryPrivilege() throws IOException{ returnpd="ok"; JSONArray array =new JSONArray(); array = privilegeService.getMenu(parentId); String str=array.toString(); out().print(str); out().flush(); out().close(); return returnpd; }
Service层接口代码
JSONArray getMenu(int parentId);
ServiceImpl层代码(实现service层)
@Override public JSONArray getMenu(int parentId) { // TODO Auto-generated method stub return (JSONArray)privilegeDao.getMenu(parentId); }
Dao层代码
JSONArray getMenu(int parentId);
DaoImpl层代码(实现Dao层)
@Override public JSONArray getMenu(int parentId) { // TODO Auto-generated method stub String hql=""; JSONArray array=new JSONArray(); hql="FROM Privilege p WHERE p.parentID = "+parentId; for(Privilege privilege:(List<Privilege>)(getSession().createQuery(hql).list())){ JSONObject jo=new JSONObject(); jo.put("id", privilege.getId()); jo.put("RecordStatus", privilege.getRecordStatus()); jo.put("parendId",privilege.getParentID()); if(privilege.getParentID()==0){ jo.put("state","closed"); } else{ jo.put("state","open"); System.out.println(parentId); } array.add(jo); } return array; }
数据库一览
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