Spring（引导）具有允许资源的安全预身份验证仍然经过身份验证

Question

我使用的是Spring Boot 1.5.6（也尝试过1.5.4）。我正在使用

RequestHeaderAuthenticationFilter

和a

PreAuthenticatedAuthenticationProvider

保护我的spring mvc web应用程序，并允许访问控制器路径和静态资源。

在我的

RequestHeaderAuthenticationFilter

设置我想要的

setExceptionIfHeaderMissing(true);

所以我知道是否在请求中发送了头变量。

当我尝试访问任何允许的资源时，Spring Security始终在请求中查找头变量并抛出一个

PreAuthenticatedCredentialsNotFoundException

为什么即使我试图访问允许的（未受保护的）资源，Spring安全仍然会尝试查找预先验证的主体？我怎样才能规避这种行为？

我的WebSecurityConfigurerAdapter的java配置如下

@Configuration
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter{


private static final Logger log = LoggerFactory.getLogger(SecurityConfig.class);


@Autowired
protected UserDetailsService userDetailsService; 



@Bean
public PreAuthenticatedAuthenticationProvider preAuthenticatedAuthenticationProvider(){

    log.info("Configuring pre authentication provider");

    UserDetailsByNameServiceWrapper<PreAuthenticatedAuthenticationToken> wrapper = 
            new UserDetailsByNameServiceWrapper<PreAuthenticatedAuthenticationToken>(
                    userDetailsService);

    PreAuthenticatedAuthenticationProvider it = new PreAuthenticatedAuthenticationProvider();
    it.setPreAuthenticatedUserDetailsService(wrapper);

    return it;      
} 

@Bean
public RequestHeaderAuthenticationFilter requestHeaderAuthenticationFilter() throws Exception{

    RequestHeaderAuthenticationFilter it = new RequestHeaderAuthenticationFilter();
    it.setAuthenticationManager(authenticationManager());
    it.setExceptionIfHeaderMissing(true);
    return it;
}

@Override
public void configure(AuthenticationManagerBuilder auth) throws Exception {
    log.info("configure authentication provider");
    auth.authenticationProvider(preAuthenticatedAuthenticationProvider());

}


@Override
protected void configure(HttpSecurity http) throws Exception {
    log.info("Configure HttpSecurity");
    http
        .authorizeRequests()
            .antMatchers("/permitted/**", "/css/**", "/js/**", "/images/**", "/webjars/**")
                .permitAll()
            .anyRequest()
                    .authenticated()
            .and().addFilter(requestHeaderAuthenticationFilter())

    ;
}    


 @Override
 public void configure(WebSecurity web) throws Exception {
     web
        .ignoring()
            .antMatchers("/permitted/**", "/css/**", "/js/**", "/images/**", "/webjars/**"); 
}   
}