public class User {
  /**
   * 主键id
   */
  private Integer userId;
  /**
   * 账号
   */
  private String username;
  /**
   * 密码
   */
  private String password;
  public Integer getUserId() {
    return userId;
  }
  public void setUserId(Integer userId) {
    this.userId = userId;
  }
  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;
  }

}

<?xml version="1.0" encoding="UTF-8" ?>




  
    
    
    
  

  
    select * from s_user where username=#{username}
  

public interface UserMapper {

 User getUserByname(String username);
}

public interface UserService {
  User getUserByname(String username, String password, HttpSession session, HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse);
}

@Service
public class UserServiceImpl implements UserService {
  @Autowired
  private UserMapper userMapper;
  
  @Override
  public ResultVO getUserByname(String username, String password, HttpSession session, HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse) {
    String remember = httpServletRequest.getParameter("remember");
    if (username!= null && username!= 0){
      User user = userMapper.getUserByname(username);

      if (user != null && user.getPassword().equals(password)){
        session.setAttribute("user", user);
        if (remember != null){
          
          Cookie cookieUser = new Cookie("username", username);
          Cookie cookiePass = new Cookie("password", password);
          cookieUser.setMaxAge(60 * 60 * 24);
          cookiePass.setMaxAge(60 * 60 * 24);
          httpServletResponse.addCookie(cookieUser);
          httpServletResponse.addCookie(cookiePass);
          return ResultVO.success(user);
       }
        return ResultVO.error(1, "用户名或密码错误");
      }
    return ResultVO.error(3, "用户名或密码不能为空");
  }
}

@RestController
public class UserController {

  @Autowired
  private UserService userService;
  //登录
  @RequestMapping("/getUserByname")
  public ResultVO getUserByname(String username, String password, HttpSession session, HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse){
    return userService.getUserByname(username, password, session, httpServletRequest, httpServletResponse);
  }
}

<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>


  
  
  



  

  

    

      用户名
      
    
    

      密码
      
    
    <%--验证码--%>
    

      

        
        
        
      
    
    

      
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