security中loadUserByUsername接收多个登录参数怎么做

在security中，通常使用`UserDetailsService`接口的`loadUserByUsername`方法来实现用户的认证和授权。该方法只接收一个用户名作为参数，如果需要支持多个登录参数，可以通过以下两种方式实现：

1. 自定义`UserDetailsService`：创建一个实现`UserDetailsService`接口的类，重写`loadUserByUsername`方法，在该方法中使用多个参数来查询用户信息，例如：

public class MyUserDetailsService implements UserDetailsService {

    @Autowired
    private UserRepository userRepository;

    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
        User user = userRepository.findByUsernameOrEmailOrPhone(username, username, username);
        if (user == null) {
            throw new UsernameNotFoundException("User not found with username: " + username);
        }
        return new org.springframework.security.core.userdetails.User(user.getUsername(), user.getPassword(),
                user.getRoles());
    }
}

2. 自定义`AuthenticationProvider`：创建一个实现`AuthenticationProvider`接口的类，重写`authenticate`方法，在该方法中使用多个参数来查询用户信息，例如：

public class MyAuthenticationProvider implements AuthenticationProvider {

    @Autowired
    private UserRepository userRepository;

    @Override
    public Authentication authenticate(Authentication authentication) throws AuthenticationException {
        String username = authentication.getName();
        String password = authentication.getCredentials().toString();

        User user = userRepository.findByUsernameOrEmailOrPhone(username, username, username);
        if (user == null) {
            throw new UsernameNotFoundException("User not found with username: " + username);
        }

        if (!passwordEncoder.matches(password, user.getPassword())) {
            throw new BadCredentialsException("Invalid password");
        }

        return new UsernamePasswordAuthenticationToken(user.getUsername(), user.getPassword(), user.getRoles());
    }

    @Override
    public boolean supports(Class<?> authentication) {
        return authentication.equals(UsernamePasswordAuthenticationToken.class);
    }
}

其中，`supports`方法用于指定该`AuthenticationProvider`支持的`Authentication`类型，这里使用`UsernamePasswordAuthenticationToken`类型。在配置文件中，需要将自定义的`UserDetailsService`或`AuthenticationProvider`注入到`AuthenticationManager`中，例如：

@Configuration
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter {

    @Autowired
    private MyUserDetailsService userDetailsService;

    @Autowired
    private MyAuthenticationProvider authenticationProvider;

    @Override
    protected void configure(AuthenticationManagerBuilder auth) throws Exception {
        auth.userDetailsService(userDetailsService);
        auth.authenticationProvider(authenticationProvider);
    }

    // ...
}