spring mvc 用户管理

package com.wtkj.spring.test.controller; import java.util.HashMap; import java.util.Map; import javax.validation.Valid; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.validation.BindingResult; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.servlet.view.InternalResourceViewResolver; import com.wtkj.spring.test.vo.User; @Controller @RequestMapping("/user") public class UserController { private final static Map<String, User> users=new HashMap<String, User>(); public UserController(){ users.put("ldh", new User("ldh", "刘德华", "123", "qqqq@qq.com")); users.put("zxy", new User("zxy", "张学友", "123", "wwww@qq.com")); users.put("gfc", new User("gfc", "郭富城", "123", "aaaa@qq.com")); users.put("lm", new User("lm", "黎明", "123", "ssss@qq.com")); } @RequestMapping("/users") public String list(Model model){ model.addAttribute("users", users); return "user/list"; } @RequestMapping(value="/add",method=RequestMethod.GET) public String add(Model model){ model.addAttribute(new User()); return "user/add"; } @RequestMapping(value="/add",method=RequestMethod.POST) public String add(@Valid User user,BindingResult binding){ if(binding.hasErrors()){ return "user/add"; } users.put(user.getUsername(), user); //添加成功则跳转 return InternalResourceViewResolver.REDIRECT_URL_PREFIX+"/user/users"; } }