Java, Spring Security: How to configure Spring Securiry to allow requests with certificates .x509 (.pfx)?

I have an application with Java and Spring Security in which the user must log in to be able to make any request. Now I want that for a particular request, I can access through a certificate (.pfx). My question is, how should I configure in Spring Security to allow access by certificate (.pfx) to a specific request (defined in the controller)?

This is my Spring Scurity configuration

public class AppWebSecurityConfig extends WebSecurityConfigurerAdapter {
@Override
protected void configure(HttpSecurity http) throws Exception {
http
.requiresChannel()
.anyRequest().requiresSecure()
.and()
    .authorizeRequests()
    .antMatchers("/password/**", "/login**").permitAll()
    .anyRequest().authenticated()
    .and()
.formLogin()
    .loginPage("/login")
    .successHandler(successHandler()).failureHandler(new MyCustomLoginFailureHandler())
    .permitAll()
    .and()
.logout()
    .logoutUrl("/logout")
    .addLogoutHandler(logoutHandler())
    .logoutSuccessUrl("/login?logout")
    .deleteCookies("RememberMe")
    .deleteCookies("JSESSIONID")
    .permitAll()
    .and();
http.csrf().disable();
}

This is my method in the controller that I want to access through the certificate:

@Controller
@RequestMapping(value = { "/" })
public class exampleController {

@RequestMapping(value = { "/activeSubscription/{id}" }, method = RequestMethod.GET)
public String activeSubscription(final Model model, @PathVariable("id") Long id) {
return "prueba";
}
}

Can someone help me? Thanks