springMVC实现用户注册及登陆

package com.web.control; import java.util.ArrayList; import java.util.List; import org.apache.log4j.LogManager; import org.apache.log4j.Logger; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.bind.annotation.RequestParam; import com.web.domain.User; @Controller @RequestMapping(value = "user") public class UserController { // 静态List<User>集合，此处代替数据库用来保存注册的用户信息 private static List<User> userList; // UserController类的构造器，初始化List<User>集合 public UserController() { super(); userList = new ArrayList<User>(); } // 静态日之类loggerMaggent private static final Logger logger = LogManager.getLogger(UserController.class.getName()); @RequestMapping(value = "/register", method = RequestMethod.GET) public String registerForm() { logger.info("register GET 方法被调用……"); return "registerForm"; } // 注册 @RequestMapping(value = "/register", method = RequestMethod.POST) public String register(@RequestParam("loginname") String loginname, @RequestParam("password") String password, @RequestParam("username") String username) { logger.info("register POST 方法被调用……"); // 创建user对象 User user = new User(); user.setLoginname(loginname); user.setPassword(password); user.setUsername(username); // 模拟数据库存储User信息 userList.add(user); //因为没有service和dao,所以直接返回;跳转到登陆页面 return "loginForm"; } // 登录 @RequestMapping("/login") public String login(@RequestParam("loginname") String loginname, @RequestParam("password") String password, Model model) { logger.info("登录名：" + loginname + " 密码：" + password); // 到集合中查找用户是否存在，此处用来模拟数据库验证 for (User user : userList) { if (user.getLoginname().equals(loginname) && user.getPassword().equals(password)) { model.addAttribute("user", user); return "welcome"; } } return "loginForm"; } }