中软国际实习第四天

中软国际实习第四天

ssm框架登陆效果—User增删改查

User

public class User {
    public User(){

    }
    public User(int id, String username,String password){
        this.id = id;
        this.username = username;
        this.password = password;
    }
    public User(String username,String password){

        this.username = username;
        this.password = password;
    }

    private int id;
    private String username;
    private String password;

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public String getUsername() {
        return username;
    }

    public void setUsername(String username) {
        this.username = username;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }

    @Override
    public String toString() {
        return "User{" +
                "id=" + id +
                ", username='" + username + '\'' +
                ", password='" + password + '\'' +
                '}';
    }
}

UserController

@Controller
@RequestMapping("/user")
public class UserController {
    @Autowired
    private IUserService userService;

    @RequestMapping("/login.do")
    public ModelAndView login(User user){
        boolean flag=userService.login(user.getUsername(),user.getPassword());
        ModelAndView modelAndView = new ModelAndView();
        if(flag){




            modelAndView.setViewName("main");
            System.out.println("success");
        }else {
            modelAndView.setViewName("../failer");
        }
        return modelAndView;
    }


        @RequestMapping("/findAll.do")
        public ModelAndView findAll(){
            List<User> userList=userService.findAll();
            ModelAndView modelAndView=new ModelAndView();
            modelAndView.addObject("userList",userList);
            modelAndView.setViewName("user-list");
            return modelAndView;
        }

        @RequestMapping("/deleteById.do")
        public String delete(int id){
            userService.deleteById(id);
            return "redirect:findAll.do";
        }

        @RequestMapping("/add.do")
        public String add(User user){
            userService.add(user);
            return "redirect:findAll.do";
    }


        @RequestMapping("/toUpdate.do")
        public ModelAndView toUpdate(int id){
            User user=userService.selectUserById(id);
            ModelAndView modelAndView=new ModelAndView();
            modelAndView.setViewName("user-update");
            modelAndView.addObject("user",user);
            return modelAndView;
        }
        @RequestMapping("/update.do")
        public String update(User user){
            userService.update(user);
            return "redirect:findAll.do";
    }

}

userdao

public interface UserDao {
    User findUserByUserName(String username);
    List<User> findAll();
    void deleteById(int id);
    void add(User user);

    User selectById(int id);

    void update(User user);
}

UseServiceImpl

public class UserServiceImpl implements IUserService {
    @Autowired
    private UserDao userDao;
    @Override
    public boolean login(String username, String password) {
        User user = (User) userDao.findUserByUserName(username);
        if(user!=null&&user.getPassword().equals(password)){

            return true;
        }else{
            return false;
        }

    }



    @Override
    public List<User> findAll() {
        return   userDao.findAll();


    }



    @Override
    public void add(User user) {
        userDao.add(user);
    }

    @Override
    public void deleteById(int id) {
        userDao.deleteById(id);

    }

    @Override
    public void toUpdate(User user) {

    }

    @Override
    public User selectUserById(int id) {
        return userDao.selectById(id);
    }

    @Override
    public void update(User user) {
        userDao.update(user);
    }


}