SpringMvc Demo (maven)

package com.cn.yu.controller; import java.util.HashMap; import java.util.List; import java.util.Map; import java.util.UUID; import javax.servlet.http.HttpServletResponse; import javax.servlet.http.HttpSession; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.ResponseBody; import com.alibaba.fastjson.JSON; import com.cn.yu.model.User; import com.cn.yu.service.IUserService; import com.mysql.fabric.xmlrpc.base.Data; @Controller @RequestMapping(value="user") public class UserController { @Autowired IUserService iUserService; //全局变量uid private String uid; @SuppressWarnings("unused") @RequestMapping(value="login") public String checklogin(User user, Model model,String username, String password){ user.setUsername(username); user.setPassword(password); if(user == null){ return "index"; } user = iUserService.islogin(user); if(user != null){ //登陆的时候给uid赋值，后面的增删改查都需要用uid来定位这个user uid = user.getUid(); model.addAttribute("user", user); return "redirect:/user/findall"; }else{ return "index"; } } @RequestMapping(value="findall") public String findAllUser(User user, Model model){ int count = iUserService.findallcount(); System.out.println("总共有用户数:"+count); model.addAttribute("count", count); model.addAttribute("pagesize", "5"); List<User> list = iUserService.findall(); model.addAttribute("list", list); //根据uid定位user System.out.println("uid:"+uid); user = iUserService.findbyuid(uid); model.addAttribute("user", user); return "success"; } @RequestMapping(value="findpageUser") @ResponseBody public String findpageUser(User user,String page, String size, Model model){ Map<String, Object> map = new HashMap<String, Object>(); int start = Integer.valueOf(page); int pagesize = Integer.valueOf(size); start = (start-1)*pagesize; map.put("start",start);//当前页数 System.out.println("当前页数："+(start/pagesize+1)); map.put("size",pagesize); //每页有多少条 System.out.println("每页条数："+pagesize); List<User> list = iUserService.findallpage(map); System.out.println("list长度："+list.size()); for(int i = 0;i < list.size();i++){ System.out.println(list.get(i).getUsername()+","+list.get(i).getPassword()); } String success = JSON.toJSONString(list); return success; } @RequestMapping(value="tuichu") public String tuiChu(HttpSession session){ System.out.println("退出登陆"); /*清楚该用户session*/ session.invalidate(); return "index"; } @RequestMapping(value="toadd") public String toAdd( Model model){ return "add"; } @RequestMapping(value="add") public String add(String username, String password, String age, String phone,User user, Model model){ System.out.println("增加"); String uidadd = UUID.randomUUID().toString()+(new Data()).toString(); user.setUid(uidadd); user.setUsername(username); user.setPassword(password); user.setAge(Integer.valueOf(age)); user.setPhone(phone); int flag = iUserService.add(user); if(flag > 0){ //根据uid定位user System.out.println("uid-add:"+uid); user = iUserService.findbyuid(uid); model.addAttribute("user", user); return "redirect:/user/findall";//重定向跳转 //return "forward:/user/findall";//内部跳转 }else{ return "error"; } } @RequestMapping(value="delete") public String delete(String id, Model model, User user){ int dele = iUserService.delete(Integer.valueOf(id)); if(dele > 0){ //根据uid定位user System.out.println("uid-delete:"+uid); user = iUserService.findbyuid(uid); model.addAttribute("user", user); return "redirect:/user/findall"; }else{ return "error"; } } @RequestMapping(value="toupdate") public String toupdate(String id, Model model, User user){ user = iUserService.findbyid(Integer.valueOf(id)); model.addAttribute("user", user); return "update"; } @RequestMapping(value="update") public String update(String udid, String username, String password, String age, String phone, Model model, User user){ user.setId(Integer.valueOf(udid)); user.setUsername(username); user.setPassword(password); user.setAge(Integer.valueOf(age)); user.setPhone(phone); int update = iUserService.update(user); if(update > 0){ //根据uid定位user System.out.println("uid-update:"+uid); user = iUserService.findbyuid(uid); model.addAttribute("user", user); return "redirect:/user/findall"; }else{ return "error"; } } }