apollo-client/src/main/java/com/ctrip/framework/apollo/spring/annotation/ApolloProcessor.java/ApolloProcessor/postProcessBeforeInitialization
class ApolloProcessor:  @Override
  public Object postProcessBeforeInitialization(Object bean, String beanName)
      throws BeansException {
    Class clazz = bean.getClass();
    for (Field field : findAllField(clazz)) {
      processField(bean, beanName, field);
    }
    for (Method method : findAllMethod(clazz)) {
      processMethod(bean, beanName, method);
    }
    return bean;
  }