我们添加Spring Security到我们现有的项目中。

从这一刻起，我们No 'Access-Control-Allow-Origin' header is present on the requested resource从服务器收到401 错误。

这是因为没有Access-Control-Allow-Origin标头附加到响应。为了解决这个问题，我们Filter在退出过滤器之前的链中添加了我们自己的过滤器，但是该过滤器不适用于我们的请求。

我们的错误：

XMLHttpRequest无法加载http://localhost:8080/getKunden。所请求的资源上不存在“ Access-Control-Allow-Origin”标头。http://localhost:3000因此，不允许访问原点。响应的HTTP状态码为401。

Our Security configuration:：

@EnableWebSecurity
@Configuration
@ComponentScan("com.company.praktikant")
public class SecurityConfiguration extends WebSecurityConfigurerAdapter {

@Autowired
private MyFilter filter;

@Override
public void configure(HttpSecurity http) throws Exception {
    final UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
    final CorsConfiguration config = new CorsConfiguration();

    config.addAllowedOrigin("*");
    config.addAllowedHeader("*");
    config.addAllowedMethod("GET");
    config.addAllowedMethod("PUT");
    config.addAllowedMethod("POST");
    source.registerCorsConfiguration("/**", config);
    http.addFilterBefore(new MyFilter(), LogoutFilter.class).authorizeRequests()
            .antMatchers(HttpMethod.OPTIONS, "/*").permitAll();
}

@Autowired
public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
}
}

Our filter

@Component
public class MyFilter extends OncePerRequestFilter {

@Override
public void destroy() {

}

private String getAllowedDomainsRegex() {
    return "individual / customized Regex";
}

@Override
protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain filterChain)
        throws ServletException, IOException {

    final String origin = "http://localhost:3000";

    response.addHeader("Access-Control-Allow-Origin", origin);
    response.setHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS");
    response.setHeader("Access-Control-Allow-Credentials", "true");
    response.setHeader("Access-Control-Allow-Headers",
            "content-type, x-gwt-module-base, x-gwt-permutation, clientid, longpush");

    filterChain.doFilter(request, response);

}
}

Our Application

@SpringBootApplication
public class Application {
public static void main(String[] args) {
    final ApplicationContext ctx = SpringApplication.run(Application.class, args);
    final AnnotationConfigApplicationContext annotationConfigApplicationContext = new AnnotationConfigApplicationContext();
    annotationConfigApplicationContext.register(CORSConfig.class);
    annotationConfigApplicationContext.refresh();
}
}

我们的过滤器是从spring-boot注册的：

2016-11-04 09：19：51.494信息9704 --- [ost-startStop-1] osbwservlet.FilterRegistrationBean：将过滤器：“ myFilter”映射到：[/ *]

我们生成的过滤链：

2016-11-04 09：19：52.729信息9704-[ost-startStop-1] ossweb.DefaultSecurityFilterChain：创建过滤器链：org.springframework.security.web.util.matcher.AnyRequestMatcher@1，[org.springframework .security.web.context.request.async.WebAsyncManagerIntegrationFilter @ 5d8c5a8a，org.springframework.security.web.context.SecurityContextPersistenceFilter@7d6938f，org.springframework.security.web.header.HeaderWriterFilter@72aa89c，org.springframework.security.web .csrf.CsrfFilter @ 4af4df11，com.company.praktikant.MyFilter@5ba65db2，org.springframework.security.web.authentication.logout.LogoutFilter@2330834f，org.springframework.security.web.savedrequest.RequestCacheAwareFilter@396532d1，org.springframework .security.web.servletapi.SecurityContextHolderAwareRequestFilter @ 4fc0f1a2，org.springframework.security.web.authentication。AnonymousAuthenticationFilter @ 2357120f，org.springframework.security.web.session.SessionManagementFilter @ 10867bfb，org.springframework.security.web.access.ExceptionTranslationFilter @ 4b8bf1fb，org.springframework.security.web.access.intercept.FilterSecurityInterceptor @ 42063cf1]

我们也从Spring开始尝试了该解决方案，但没有成功！控制器中的@CrossOrigin注释也无济于事。

编辑1：
尝试了@PiotrSołtysiak的解决方案。cors过滤器未在生成的过滤器链中列出，我们仍然遇到相同的错误。

2016-11-04 10：22：49.881信息8820-[ost-startStop-1] ossweb.DefaultSecurityFilterChain：创建过滤器链：org.springframework.security.web.util.matcher.AnyRequestMatcher@1，[org.springframework .security.web.context.request.async.WebAsyncManagerIntegrationFilter @ 4c191377，org.springframework.security.web.context.SecurityContextPersistenceFilter@28bad32a，org.springframework.security.web.header.HeaderWriterFilter@3c3ec668，org.springframework.security.web .csrf.CsrfFilter @ 288460dd，org.springframework.security.web.authentication.logout.LogoutFilter@1c9cd096，org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter@3990c331，org.springframework.security.web.authentication.ui.DefaultLoginPageGeneratingFilter @ 1e8d4ac1，org.springframework.security.web.authentication.www.BasicAuthenticationFilter @ 2d61d2a4，org。springframework.security.web.savedrequest.RequestCacheAwareFilter@380d9a9b，org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter@abf2de3，org.springframework.security.web.authentication.AnonymousAuthenticationFilter@2a5c161b，org.springframework.security.web.session。 SessionManagementFilter @ 3c1fd3e5，org.springframework.security.web.access.ExceptionTranslationFilter @ 3d7055ef，org.springframework.security.web.access.intercept.FilterSecurityInterceptor @ 5d27725a]access.ExceptionTranslationFilter @ 3d7055ef，org.springframework.security.web.access.intercept.FilterSecurityInterceptor @ 5d27725a]access.ExceptionTranslationFilter @ 3d7055ef，org.springframework.security.web.access.intercept.FilterSecurityInterceptor @ 5d27725a]

顺便说一句，我们正在使用spring-security版本4.1.3。！