我对微服务比较陌生，我一直在尝试使用这个概念验证应用程序，它使用Spring Boot和Spring Cloud.
问题是，虽然应用程序在Spring Boot 1.3.5和上运行良好Spring Cloud Brixton.RELEASE，但在升级其中任何一个时都会中断。
注册新帐户时发生错误，并给出以下错误：
status 403 reading AuthServiceClient#createUser(User); content:↵{"timestamp":1510753211255,"status":403,"error":"Forbidden","message":"Access Denied","path":"/uaa/users"}
和堆栈跟踪：
2017-11-15 15:40:11.284 ERROR 9072 --- [nio-6000-exec-1] o.a.c.c.C.[.[.[.[dispatcherServlet] : Servlet.service() for servlet [dispatcherServlet] in context with path [/accounts] threw exception [Request processing failed; nested exception is feign.FeignException: status 403 reading AuthServiceClient#createUser(User); content: {"timestamp":1510753211255,"status":403,"error":"Forbidden","message":"Access Denied","path":"/uaa/users"}] with root cause
由于这似乎是一个 Feign 错误，并且AuthServiceClient.java似乎是罪魁祸首，所以我将其包括在此处：
@FeignClient(name = "auth-service")
public interface AuthServiceClient {
@RequestMapping(method = RequestMethod.POST, value = "/uaa/users", consumes = MediaType.APPLICATION_JSON_UTF8_VALUE)
void createUser(User user);
}
由于代码没有任何更改，我不明白可能是什么原因以及如何解决此错误。