treepanel 동적 불러오기 데이터 구현 코드

 
  
var tree = new Ext.tree.TreePanel({ 
  
region:'west', 
  
title:'   ：', 
  
width:200, 
  
minSize:150, 
  
maxSize:200, 
  
iconCls:'ux-auth-menu-header-icon', 
  
split:true, 
  
autoScroll:true, 
  
autoHeight:false, 
  
collapsible:true, 
  
rootVisable:false, //       
  
root:new Ext.tree.TreeNode({ 
  
id:'root', 
  
text:'  ', 
  
draggable:false, 
  
expanded:true 
  
}), 
  
loader:new Ext.tree.TreeLoader({ 
  
dataUrl:'treeUtil.html?content.method=getAllMenuTreeNodes' 
  
}) 
  
}); 
  
public void getAllMenuTreeNodes(ActionMapping mapping, ActionForm form, 
  
HttpServletRequest request, HttpServletResponse response) { 
  
String systemId = request.getParameter("node"); 
  
String haveCheckBox = request.getParameter("haveCheckBox"); 
  
IMenuManager menuManager = this.getPkgServer().getDriver().getSystemManageServer().getMenuManager(); 
  
List nodes = new ArrayList(); 
  
String parentNodeName =menuManager.getMenu(Long.parseLong(systemId)).getName() ; 
  
List menus = menuManager.getMenus("em.parent_name= '" +parentNodeName + "'"); 
  
for(Menu menu:menus){ 
  
HashMap hm=new HashMap(); 
  
hm.put("id", menu.getId()); 
  
hm.put("text", menu.getTitle()); 
  
hm.put("iconCls",menu.getName()); 
  
nodes.add(hm); 
  
} 
  
JSONArray ary = new JSONArray(nodes); 
  
writeJson(response, ary.toString()); 
  
}