SPRING：向Spring安全用户添加自定义用户详细信息

Question

我目前正在开发一个Spring MVC应用程序，我需要在登录时向我的Spring Security登录用户添加一个自定义字段（我插入用户名，密码，自定义值）。当用户登录时（例如，通过pricipal.getValue），该值必须在任何地方都可用。

我阅读了很多关于自定义用户类和自定义服务的内容，但无法真正找到解决问题的解决方案......

任何帮助都会很棒！

Answer 1

就像Avinash所说，你可以让你的User类实现UserDetails，你也可以实现UserDetailsService并覆盖相应的方法来返回自定义的User对象：

@Service("userDetailsService")
public class MyUserDetailsService implements UserDetailsService {

    //get user from the database, via Hibernate
    @Autowired
    private UserDao userDao;

    @Transactional(readOnly=true)
    @Override
    public UserDetails loadUserByUsername(final String username)
        throws UsernameNotFoundException {
//CUSTOM USER HERE vvv
        User user = userDao.findByUserName(username);
        List<GrantedAuthority> authorities =
                                      buildUserAuthority(user.getUserRole());
//if you're implementing UserDetails you wouldn't need to call this method and instead return the User as it is
        //return buildUserForAuthentication(user, authorities);
return user;

    }

    // Converts user to spring.springframework.security.core.userdetails.User
    private User buildUserForAuthentication(user,
        List<GrantedAuthority> authorities) {
        return new User(user.getUsername(), user.getPassword(),
            user.isEnabled(), true, true, true, authorities);
    }

    private List<GrantedAuthority> buildUserAuthority(Set<UserRole> userRoles) {

        Set<GrantedAuthority> setAuths = new HashSet<GrantedAuthority>();

        // add user's authorities
        for (UserRole userRole : userRoles) {
            setAuths.add(new SimpleGrantedAuthority(userRole.getRole()));
        }

        List<GrantedAuthority> Result = new ArrayList<GrantedAuthority>(setAuths);

        return Result;
    }

}

你只需使用自定义WebConfigurerAdapter配置你的UserdetailsService：

@Configuration
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter {
@Autowired
@Qualifier("userDetailsService")
UserDetailsService userDetailsService;

@Autowired
public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
    auth.userDetailsService(userDetailsService).passwordEncoder(passwordEncoder());
}

@Override
protected void configure(HttpSecurity http) throws Exception {

    //authorization logic here ...
}

    @Bean
    public PasswordEncoder passwordEncoder(){
        // return preferred PasswordEncoder ...//
    }


}

这里，自定义UserDetails实现的示例：custom UserDetails

Answer 2

创建实现UserDetails接口的类。

public class User implements UserDetails {
    // Your user properties
    // implement methods
}

然后，一旦通过身份验证，您就可以像这样访问项目中的任何位置。

User user = (User) SecurityContextHolder.getContext().getAuthentication().getPrincipal();