ajax与js实现局部刷新案例

<%@ page language="java" contentType="text/html; charset=utf-8"

    pageEncoding="utf-8"%>

package com.zj.ajax;

import java.io.IOException;

import java.util.ArrayList;

import java.util.List;

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.alibaba.fastjson.JSON;

import sun.management.counter.Variability;

/**

* Servlet implementation class process

*/

@WebServlet("/p")

public class process extends HttpServlet {

private static final long serialVersionUID = 1L;

    /**

    * @see HttpServlet#HttpServlet()

    */

    public process() {

        super();

        // TODO Auto-generated constructor stub

    }

/**

* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)

*/

@SuppressWarnings({ "unchecked", "rawtypes" })

protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

List list1 = new ArrayList();

list1.add("小红");

list1.add("小明");

list1.add("小白");

List list2 = new ArrayList();

list2.add("职员");

list2.add("经理");

List list3 = new ArrayList();

list3.add("人事部");

list3.add("技术部");

list3.add("无线事业部");

response.setContentType("text/html;charset=utf-8");

String param=request.getParameter("param");

int i=Integer.parseInt(param);

if (i == 1) {

String json1=JSON.toJSONString(list1);

response.getWriter().println(json1);

}else if (i == 2) {

String json2=JSON.toJSONString(list2);

response.getWriter().println(json2);

}else{

String json3=JSON.toJSONString(list3);

System.out.println(json3);

response.getWriter().println(json3);

}

}

}

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