zTree，递归

zTree，递归

          /**
	 * 获取树的所有节点
	 * @return
	 */
	public void getHistroyTree(){
		histroyTree=this.histroyTreeService.getHistroyTree();
		JSONObject json =  new JSONObject();
		PrintWriter out = null;
	  	try{
	  		Map<Long, TbDfzTree> maps=new HashMap<Long, TbDfzTree>();
	  		for(Object o : histroyTree){
	  			TbDfzTree t=(TbDfzTree)o;
	  			maps.put(t.getId(), t);	  			
	  		}
	  		TbDfzTree root=null;
	  		for(Object o : histroyTree){
	  			TbDfzTree t=(TbDfzTree)o;
	  			if(t.getFid()!=null){
	  				maps.get(t.getFid()).addChild(t);
	  			}else{
	  				root=t;
	  			}
	  		}	
	  		root=maps.get(1l);
	  		processtree(root,json);
			this.getResponse().setCharacterEncoding("UTF-8");
			out = this.getResponse().getWriter();
			out.print(json.toString());
			out.flush();
			out.close();
	  	}catch(Exception ex){
	  		ex.printStackTrace();
	  	}
	}



public void processtree(TbDfzTree root,JSONObject json){
		json.put("id", root.getId());
		json.put("pid", "0");
		json.put("name", root.getName());
		json.put("isParent", root.getChilds().size()>0);
		if(root.getChilds().size()>0){
			JSONArray jarray = new JSONArray();
			json.put("children",jarray);
			for(TbDfzTree item: root.getChilds()){
				JSONObject son =  new JSONObject();
				processtree(item,son);
				jarray.add(son);
			}
		}
	}