您可以通过实现自定义UserDetailsService并重写其loadUserByUsername()方法来自定义身份验证逻辑。

public interface MembersService extends UserDetailsService {}

@Service
public class MembersServiceImpl implements MemberService{
    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {

        //custom logic to authenticate  
        throw new UsernameNotFoundException("User '" + username + "' not found");
    }

}

在安全配置中设置此自定义用户详细信息服务

@Configuration
public class WebSecurityConfiguration extends WebSecurityConfigurerAdapter {

    private MembersService memberService;

    public WebSecurityConfiguration(MembersService memberService) {
        this.memberService = memberService;
    }

@Override
    protected void configure(AuthenticationManagerBuilder auth) throws Exception {
        auth.userDetailsService(this.memberService).passwordEncoder(encoder());
    }

}