jquery zTree pemuatan asynchronous contoh mudah explanation

jquery zTree pemuatan asynchronous contoh mudah explanation_jquery

WBOY

Lepaskan： 2016-05-16 15:13:42

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1155 orang telah melayarinya

Contoh dalam artikel ini menerangkan pemuatan asynchronous jquery zTree dan dikongsi dengan semua orang untuk rujukan anda. Kandungan khusus adalah seperti berikut

Konfigurasi Servlet dalam web.xml adalah seperti berikut:

<&#63;xml version="1.0" encoding="UTF-8"&#63;> 
<web-app version="2.4"  
  xmlns="http://java.sun.com/xml/ns/j2ee"  
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  
  xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee  
  http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"> 
   
   
  <servlet> 
    <servlet-name>getDataServlet</servlet-name>;  
    <servlet-class>testTree.TestTree</servlet-class>;  
  </servlet> 
   
  <servlet-mapping> 
  <servlet-name>getDataServlet</servlet-name>;  
  <url-pattern>/getData</url-pattern>;  
  </servlet-mapping> 
 
</web-app>

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Halaman JSP:

<!DOCTYPE html> 
<HTML> 
<HEAD> 
  <TITLE> ZTREE DEMO - Simple Data</TITLE> 
  <meta http-equiv="content-type" content="text/html; charset=UTF-8"> 
  <link rel="stylesheet" href="css/demo.css" type="text/css"> 
  <link rel="stylesheet" href="css/zTreeStyle/zTreeStyle.css" type="text/css"> 
  <script type="text/javascript" src="js/jquery-1.4.4.min.js"></script> 
  <script type="text/javascript" src="js/jquery.ztree.core-3.2.js"></script> 
  <script type="text/javascript" src="js/jquery.ztree.excheck-3.2.js"></script> 
  <script type="text/javascript" src="js/jquery.ztree.exedit-3.2.js"></script> 
  <SCRIPT type="text/javascript"> 
    <!-- 
    var setting = { 
      data: { 
        simpleData: { 
          enable: true 
        } 
      } 
      ,async: { 
        enable: true, 
        url:"/testJQuery/getData", 
        autoParam:["id", "name"], 
        otherParam:{"otherParam":"zTreeAsyncTest"}, 
        dataFilter: filter 
      } 
    }; 
    function filter(treeId, parentNode, childNodes) { 
      if (!childNodes) return null; 
      for (var i=0, l=childNodes.length; i<l; i++) { 
        childNodes[i].name = childNodes[i].name.replace('',''); 
      } 
      return childNodes; 
    } 
    var zNodes =[ 
      { id:1, pId:0, name:"parentNode 1", open:true}, 
      { id:11, pId:1, name:"parentNode 11"}, 
      { id:111, pId:11, name:"leafNode 111"}, 
      { id:112, pId:11, name:"leafNode 112"}, 
      { id:113, pId:11, name:"leafNode 113"}, 
      { id:114, pId:11, name:"leafNode 114"}, 
      { id:12, pId:1, name:"parentNode 12"}, 
      { id:121, pId:12, name:"leafNode 121"}, 
      { id:122, pId:12, name:"leafNode 122"}, 
      { id:123, pId:12, name:"leafNode 123"}, 
      { id:13, pId:1, name:"parentNode 13", isParent:true}, 
      { id:2, pId:0, name:"parentNode 2", isParent:true} 
    ]; 
 
    $(document).ready(function(){ 
      $.fn.zTree.init($("#treeDemo"), setting, zNodes); 
    }); 
    //--> 
  </SCRIPT> 
 </HEAD> 
 
<BODY> 
<h1>最简单的树 -- 简单 JSON 数据</h1> 
<h6>[ 文件路径: core/simpleData.html ]</h6> 
<div class="content_wrap"> 
  <div class="zTreeDemoBackground left"> 
    <ul id="treeDemo" class="ztree"></ul> 
  </div> 
</div> 
</BODY> 
</HTML>

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Kod tindakan:

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<HashMap<String,Object>> list = new ArrayList<HashMap<String,Object>>(); 
     
    for(int i = 0; i < 5; i++){ 
      HashMap<String,Object> hm = new HashMap<String,Object>();  //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'}]"); 
  } 
 
}

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Di atas ialah contoh pemuatan asynchronous jquery zTree yang dikongsi dengan semua orang.