android使用JSON进行网络数据交换(服务端、客户端)的实现.zip项目安卓应用源码下载

package com.test.Demo; import java.io.IOException; import java.io.PrintWriter; import java.util.ArrayList; import java.util.List; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.json.me.JSONArray; import org.json.me.JSONObject; public class JSONDemoServlet extends HttpServlet { private static final long serialVersionUID = -7368225680407826408L; private List<User> list; /** * 处理post方式提交的数据 */ @Override protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // TODO Auto-generated method stub doGet(request, response); } /** * 出来get方式提交的数据 */ @Override protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // TODO Auto-generated method stub response.setContentType("text/plain"); response.setCharacterEncoding("UTF-8"); PrintWriter out = response.getWriter(); //准备用户数据 prepareData(); //JSON数组 JSONArray array = new JSONArray(); for(User bean:list){ //单个用户JSON对象 JSONObject obj = new JSONObject(); try{ obj.put("id", bean.getId()); obj.put("name", bean.getName()); obj.put("email", bean.getEmail()); obj.put("gender", bean.getGender()); }catch (Exception e) { // TODO: handle exception } array.put(obj); } //输出 out.write(array.toString()); out.flush(); out.close(); } private void prepareData() { list = new ArrayList<User>(); User bean1 = new User(); bean1.setId(1001); bean1.setName("Tony"); bean1.setEmail("tony@toeach.net"); bean1.setGender("male"); list.add(bean1); User bean2 = new User(); bean2.setId(1002); bean2.setName("Jack"); bean2.setEmail("jack@hotmail.com"); bean2.setGender("male"); list.add(bean2); User bean3 = new User(); bean3.setId(1003); bean3.setName("Marry"); bean3.setEmail("marry@163.com"); bean3.setGender("female"); list.add(bean3); User bean4 = new User(); bean4.setId(1004); bean4.setName("Linda"); bean4.setEmail("linda@21cn.com"); bean4.setGender("female"); list.add(bean4); } }