apollo-client-config-data/src/main/java/com/ctrip/framework/apollo/config/data/ApolloClientConfigDataAutoConfiguration.java/ApolloClientConfigDataAutoConfiguration/apolloWebClientSecurityProperties
class ApolloClientConfigDataAutoConfiguration:  @ConditionalOnMissingBean(ApolloClientProperties.class)
  @ConfigurationProperties(ApolloClientPropertiesFactory.PROPERTIES_PREFIX)
  @Bean
  public static ApolloClientProperties apolloWebClientSecurityProperties() {
    return new ApolloClientProperties();
  }