401 unauthorized page for swagger?

Question

I am enable swagger2 by @EnableSwagger2. However, when I try to hit "/swagger-ui.html", it first hit my Authentication Filter. Then, I wrote the following code to bypass the authentication check

String resourcePath = new UrlPathHelper().getPathWithinApplication(httpRequest);
if ("/swagger-ui.html".equalsIgnoreCase(resourcePath)) {
     filterChain.doFilter(request, response);
}

I can see the filterChain.doFilter(request, response); was hit. However, when I let the debug go, it returns a page with information below

Whitelabel Error Page
This application has no explicit mapping for /error, so you are seeing this as a fallback.

Wed Apr 04 15:41:50 EDT 2018
There was an unexpected error (type=Unauthorized, status=401).
No message available

Any idea, guys?

Answer 1

Think you can add your ownWebSecurityConfig extends WebSecurityConfigurerAdapter, than override configure(WebSecurity web) method and there put web.ignoring().antMatchers("/swagger-ui.html") ofc annotate that class with @Configuration

    @Configuration
    @EnableWebSecurity
    public class SecurityConfig extends WebSecurityConfigurerAdapter{
    
        @Override
        public void configure(WebSecurity web) throws Exception {
            super.configure(web);
            web.ignoring().antMatchers("swagger-ui/**", "swagger-ui**", "/v3/api-docs/**", "/v3/api-docs**");
        }