SpringMVC实现验证登陆功能

最新推荐文章于 2024-03-10 20:07:07 发布

原创最新推荐文章于 2024-03-10 20:07:07 发布 · 1.3k 阅读

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文章标签：

#mysql #java

本文详细介绍使用SpringMVC框架实现用户登录验证的功能，包括DAO层的UserDao接口定义，Service层的UserService类实现，以及Controller层的UserController类处理登录请求。通过整合MyBatis进行数据库操作，展示了从用户输入到后端处理的完整流程。

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DAY04-SpringMVC实现验证登陆功能

先上目录结构

目录结构

UserDao

public interface UserDao {
User findUserByUserName(String username);
}

UserService

@Service
public class UserService implements IUserService {
@Autowired
private UserDao userDao;

@Override
public boolean login(String username, String password) {
    User user = userDao.findUserByUserName(username);
    if (user != null && user.getPassword().equals(password)){
        return true;
    }else{
        return false;
    }
}

}

IUserService

public interface IUserService {
boolean login(String username, String 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("./ok");
    }else{
        modelAndView.setViewName("./failure");
    }
    return modelAndView;
}
}

UserMapping.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
<mapper namespace="com.wzbc.dao.UserDao" >
<select id="findUserByUserName" parameterType="String" resultType="com.wzbc.bean.User">
    	select * from tb_user where username = #{username}
  </select>
</mapper>