eurekaAutoServiceRegistration 异常

方案来自：https://github.com/spring-cloud/spring-cloud-netflix/issues/1952

解决办法：

 1 @Component
 2 public class FeignBeanFactoryPostProcessor implements BeanFactoryPostProcessor {
 3 
 4     @Override
 5     public void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory) throws BeansException {
 6         if (containsBeanDefinition(beanFactory, "feignContext", "eurekaAutoServiceRegistration")) {
 7             BeanDefinition bd = beanFactory.getBeanDefinition("feignContext");
 8             bd.setDependsOn("eurekaAutoServiceRegistration");
 9         }
10     }
11 
12     private boolean containsBeanDefinition(ConfigurableListableBeanFactory beanFactory, String... beans) {
13         return Arrays.stream(beans).allMatch(b -> beanFactory.containsBeanDefinition(b));
14     }
15 }