apollo-portal/src/main/java/com/ctrip/framework/apollo/portal/spi/configuration/AuthConfiguration.java/SpringSecurityLDAPAuthAutoConfiguration/SpringSecurityLDAPAuthAutoConfiguration
class SpringSecurityLDAPAuthAutoConfiguration:    public SpringSecurityLDAPAuthAutoConfiguration(final LdapProperties properties, final Environment environment) {
      this.properties = properties;
      this.environment = environment;
    }