SpringMVC UserDetailsS​​ervice登录

时间:2016-10-07 20:02:34

标签: spring spring-mvc spring-security

我有这堂课:

@Service
public class AppUserDetailsService implements UserDetailsService {

@Autowired
private UserRepository userRepository;

@Override
public UserDetails loadUserByUsername(String email) throws UsernameNotFoundException {
    Optional<User> optionalUser = userRepository.findByEmailAndStatus(email, UserStatusEnum.ACTIVE);
    User user = optionalUser.orElseThrow(() -> new UsernameNotFoundException("Usuário e/ou senha incorretos"));
    return new UserSystem(user, getPermissoes(user));
}

private Collection<? extends GrantedAuthority> getPermissoes(User user) {
    Set<SimpleGrantedAuthority> authorities = new HashSet<>();

    user.getPermitionList().forEach(p -> authorities.add(new SimpleGrantedAuthority(p.getCode().getDescription().toUpperCase())));

    return authorities;
  }
}

我的HTML格式:

<form name="login" method="POST" th:action="@{/login}">
          <div class="form-group">
            <input type="email" class="form-control input-lg" id="email" placeholder="Email" name="email" 
                required="required"/>
          </div>
          <div class="form-group">
            <input type="password" class="form-control input-lg" id="password" placeholder="Senha" name="password" 
                required="required"/>
          </div>
          <div class="btn-group btn-group-justified" role="group">
            <div class="btn-group" role="group">
              <button type="button" class="btn btn-danger" onclick="showUserForm()">Cadastar</button>
            </div>
            <div class="btn-group" role="group">
              <button type="submit" class="btn btn-default">Entrar</button>
            </div>
          </div>
          <button type="button" class="btn btn-link wimoo-link">Esqueceu sua senha?</button>
    </form>

我的登录Bean:

    @GetMapping("/login")
public ModelAndView login(@AuthenticationPrincipal User user) {
    ModelAndView mv = new ModelAndView("login");
    mv.addObject(new User());

    if (user != null) {
        mv = new ModelAndView("masterdata/home");
        return mv;
    } 

    return mv; 
}

问题是,用户在我的方法&#39;公共ModelAndView登录(@AuthenticationPrincipal用户用户)&#39;永远是空的。 loadUserByUsername方法没问题,但在我的bean中,用户始终为null。

1 个答案:

答案 0 :(得分:1)

你遗漏了一些东西。您没有在登录方法中将表单详细信息绑定到您的用户。为了做绑定,请执行以下操作:

在您的表单上,您有:

<div class="form-group">
    <input type="email" class="form-control input-lg" id="email" placeholder="Email" name="email" required="required"/>
</div>

如果您要将表单中的此电子邮件绑定到User对象上的电子邮件字段,那么如果您在User类上有:

public class User{
    private String myEmailAddress;
}

然后在输入标记上,您应该添加一个等于myEmailAddress的name属性,以便将您的表单中的值绑定到登录方法上的User对象。

<div class="form-group">
    <input type="email" name="myEmailAddress" class="form-control input-lg" id="email" placeholder="Email" required="required"/>
</div>

您现在需要做的就是将@ModelAttribute注释添加到您的登录方法中,以便实际执行此绑定。像这样:

@GetMapping("/login")
public ModelAndView login(@AuthenticationPrincipal @ModelAttribute User user) {
    ModelAndView mv = new ModelAndView("login");
    mv.addObject(new User());

    if (user != null) {
        mv = new ModelAndView("masterdata/home");
        return mv;
    } 

    return mv; 
}