web.xml中Servlet配置如下：

<&＃63;xml version="1.0" encoding="UTF-8"&＃63;> 
 
   
   
   
    getDataServlet;  
    testTree.TestTree;  
   
   
   
  getDataServlet;  
  /getData;  
   
 
 

JSP页面：

 
 
 
   
   
   
   
   
   
   
   
   
     
  《SCRIPT》 
  
 
 
最简单的树 -- 简单 JSON 数据
 
[ 文件路径: core/simpleData.html ]
 
 
  
 
    
 
  
 
 
 

Action代码：

public class TestTree extends HttpServlet { 
 
  @Override 
  public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { 
//   System.out.println("--------doGet--------"); 
    this.doPost(request, response); 
  } 
 
  @Override 
  public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { 
//   System.out.println("--------doPost--------"); 
    String id = request.getParameter("id"); 
    String name = request.getParameter("name"); 
    String level = request.getParameter("level"); 
    String otherParam = request.getParameter("otherParam"); 
    System.out.println(id + "|" + name + "|" + level + "|" + otherParam); 
     
    JSONObject json = new JSONObject(); 
    List> list = new ArrayList>(); 
     
    for(int i = 0; i <5; i++){ 
      HashMap hm = new HashMap();  //最外层，父节点       
      hm.put("id", id + i);//id属性 ，数据传递  
      hm.put("name", id + i); //name属性，显示节点名称  
      hm.put("pId", id); 
       
      list.add(hm); 
    } 
     
    JSONArray arr = new JSONArray(list); 
    json.put("success", true); 
    json.put("arr", arr); 
     
    System.out.println("--------json------" + json.toString()); 
    response.getWriter().write(arr.toString()); 
//   response.getWriter().write(json.toString()); 
//   response.getWriter().write("[{pId:'2',name:'20',id:'20'}]"); 
  } 
 
} 

以上就是jquery zTree异步加载实例分享给大家，希望对大家学习异步加载技术有所帮助。