org.springframework.boot.autoconfigure.security.oauth2.client.SsoSecurityConfigurer#oauth2SsoFilter
private OAuth2ClientAuthenticationProcessingFilter oauth2SsoFilter(
OAuth2SsoProperties sso) {
OAuth2RestOperations restTemplate = this.beanFactory
.getBean(OAuth2RestOperations.class);
ResourceServerTokenServices tokenServices = this.beanFactory
.getBean(ResourceServerTokenServices.class);
OAuth2ClientAuthenticationProcessingFilter filter = new OAuth2ClientAuthenticationProcessingFilter(
sso.getLoginPath());
filter.setRestTemplate(restTemplate);
filter.setTokenServices(tokenServices);
return filter;
}