JQuery ztree 异步加载实例讲解

import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;

public class testServlet extends HttpServlet{
@Override
public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
doPost(request, response);
}

@Override
public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
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);

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);
}
response.getWriter().write(JSON.toJSONString(list));
}
}

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5"
 xmlns="http://java.sun.com/xml/ns/javaee"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
 http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
 <display-name></display-name>
 <servlet>
 <servlet-name>testServlet</servlet-name>
 <servlet-class>com.test.testServlet</servlet-class>
 </servlet>
 <servlet-mapping>
 <servlet-name>testServlet</servlet-name>
 <url-pattern>/test</url-pattern>
 </servlet-mapping>
 <welcome-file-list>
 <welcome-file>index.jsp</welcome-file>
 </welcome-file-list>
</web-app>

效果图：

更多关于ztree控件的内容，请参考专题《jQuery插件ztree使用汇总》

以上就是关于jquery异步加载，希望对大家学习jquery程序设计有所帮助。