SpringMVC对ServletAPI的支持和JSON格式的转换

package com.hongcong.controller;

import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;
import java.net.URLEncoder;
import java.util.ArrayList;
import java.util.List;

import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.ModelAndView;

import com.hongcong.model.UserModel;

@Controller
@RequestMapping("/user")
public class LoginController {

    @RequestMapping("/list")
    public ModelAndView list(){
        ModelAndView modelAndView = new ModelAndView();
        modelAndView.setViewName("/login/list");
        return modelAndView;
    }

    @RequestMapping("/login")
    //方法的参数可以直接获取HttpServletRequest和HttpServletResponse
    public String login(HttpServletRequest request,HttpServletResponse response)throws Exception{
        String userName = request.getParameter("userName");
        String passWord = request.getParameter("passWord");
        //cookie中放入中文时需要进行特殊处理
        String cookieStr = userName + "-" + passWord;
        String encode = URLEncoder.encode(cookieStr, "UTF-8");
        Cookie cookie = new Cookie("user",encode);
        cookie.setMaxAge(60*30);
        response.addCookie(cookie);
        HttpSession session = request.getSession();
        session.setAttribute("userModel", new UserModel(userName,passWord));
        return "redirect:/user/list.do";
    }

    @RequestMapping("/Ajax") 
　　 //实体类转换为json格式的注解，springMVC.xml需要配置
    @ResponseBody
    public  List<UserModel> JsonTest(){
        List<UserModel> list = new ArrayList<UserModel>();
        list.add(new UserModel("小夏","1234"));
        list.add(new UserModel("小红","111111"));
        return list;

    }
}