//jsp代码 <%@ page language="java" contentType="text/html; charset=ISO-8859-1"    pageEncoding="ISO-8859-1"%><%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
     
       

testServlet

package com.javaweb;import java.io.IOException;import java.util.HashMap;import java.util.Map;import javax.servlet.ServletException;import javax.servlet.annotation.WebServlet;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import com.google.gson.Gson;/** * Servlet implementation class TestServlet */@WebServlet("/testServlet")public class TestServlet extends HttpServlet {    private static final long serialVersionUID = 1L;           /**     * @see HttpServlet#HttpServlet()     */    public TestServlet() {        super();        // TODO Auto-generated constructor stub    }    /**     * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)     */    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {        // TODO Auto-generated method stub        doPost(request, response);    }    /**     * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)     */    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {        // TODO Auto-generated method stub        String str = request.getParameter("func");        System.out.println(str);    //    request.setAttribute("name", 8);        Map
     
       result = new HashMap
      
       ();        result.put("name", "name");            Gson gson = new Gson();//需导入gson.jar        String jsonStr = gson.toJson(result);        response.setContentType("text/javascript");        response.getWriter().print(jsonStr);    }}