jquery zTree异步加载实例
web.xml中Servlet配置如下：
1 ??<?xml version="1.0" encoding="UTF-8"?> ??2 ????<web-app version="2.4" ???3 ????????xmlns="http://java.sun.com/xml/ns/j2ee" ???4 ????????xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" ???5 ????????xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee ???6 ????????http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"> ??7 ???????????8 ???????????9 ????????<servlet> ?10 ????????????<servlet-name>getDataServlet</servlet-name>; ??11 ????????????<servlet-class>testTree.TestTree</servlet-class>; ??12 ????????</servlet> ?13 ??????????14 ????????<servlet-mapping> ?15 ????????<servlet-name>getDataServlet</servlet-name>; ??16 ????????<url-pattern>/getData</url-pattern>; ??17 ????????</servlet-mapping> ?18 ??????19 ????</web-app> ?
JSP页面：
1 ??<?xml version="1.0" encoding="UTF-8"?> ??2 ????<web-app version="2.4" ???3 ????????xmlns="http://java.sun.com/xml/ns/j2ee" ???4 ????????xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" ???5 ????????xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee ???6 ????????http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"> ??7 ???????????8 ???????????9 ????????<servlet> ?10 ????????????<servlet-name>getDataServlet</servlet-name>; ??11 ????????????<servlet-class>testTree.TestTree</servlet-class>; ??12 ????????</servlet> ?13 ??????????14 ????????<servlet-mapping> ?15 ????????<servlet-name>getDataServlet</servlet-name>; ??16 ????????<url-pattern>/getData</url-pattern>; ??17 ????????</servlet-mapping> ?18 ??????19 ????</web-app> ?
Action代码：
1 [java] view plain copy 2 ?3 ????????public class TestTree extends HttpServlet { ??4 ???????????5 ????????????@Override ??6 ????????????public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { ??7 ????????// ?????System.out.println("--------doGet--------"); ??8 ????????????????this.doPost(request, response); ??9 ????????????} ?10 ??????????11 ????????????@Override ?12 ????????????public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { ?13 ????????// ?????System.out.println("--------doPost--------"); ?14 ????????????????String id = request.getParameter("id"); ?15 ????????????????String name = request.getParameter("name"); ?16 ????????????????String level = request.getParameter("level"); ?17 ????????????????String otherParam = request.getParameter("otherParam"); ?18 ????????????????System.out.println(id + "|" + name + "|" + level + "|" + otherParam); ?19 ??????????????????20 ????????????????JSONObject json = new JSONObject(); ?21 ????????????????List<HashMap<String,Object>> list = new ArrayList<HashMap<String,Object>>(); ?22 ??????????????????23 ????????????????for(int i = 0; i < 5; i++){ ?24 ????????????????????HashMap<String,Object> hm = new HashMap<String,Object>(); ??//最外层，父节点 ????????????25 ????????????????????hm.put("id", id + i);//id属性 ?，数据传递 ???26 ????????????????????hm.put("name", id + i); //name属性，显示节点名称 ???27 ????????????????????hm.put("pId", id); ?28 ??????????????????????29 ????????????????????list.add(hm); ?30 ????????????????} ?31 ??????????????????32 ????????????????JSONArray arr = new JSONArray(list); ?33 ????????????????json.put("success", true); ?34 ????????????????json.put("arr", arr); ?35 ??????????????????36 ????????????????System.out.println("--------json------" + json.toString()); ?37 ????????????????response.getWriter().write(arr.toString()); ?38 ????????// ?????response.getWriter().write(json.toString()); ?39 ????????// ?????response.getWriter().write("[{pId:‘2‘,name:‘20‘,id:‘20‘}]"); ?40 ????????????} ?41 ??????????42 ????????}
jquery zTree异步加载实例
原文地址：http://www.cnblogs.com/jiapengsongweb/p/7594255.html