（黑馬十次方項目day07）The bean 'eurekaRegistration', defined in class path resource

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APPLICATION FAILED TO START
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Description:

The bean 'eurekaRegistration', defined in class path resource [org/springframework/cloud/netflix/eureka/EurekaClientAutoConfiguration$EurekaClientConfiguration.class], could not be registered. A bean with that name has already been defined in class path resource [org/springframework/cloud/netflix/eureka/EurekaClientAutoConfiguration$RefreshableEurekaClientConfiguration.class] and overriding is disabled.

Action:

Consider renaming one of the beans or enabling overriding by setting spring.main.allow-bean-definition-overriding=true


進程已結束，退出代碼 1

意思是說 eurekaRegistration 重復注冊了，

Action：可以考慮重命名其中一個bean，或者通過設置spring.main.allow-bean-definition- override =true來啟用覆蓋

 

網上說可能是spring boot 和 spring cloud 版本沖突，具體版本參考Spring 官方對應版本地址：  (https://start.spring.io/actuator/info)

spring boot 和 spring cloud 大版本對應

Spring Boot	Spring Cloud
1.2.x	Angel版本
1.3.x	Brixton版本
1.4.x stripes	Camden版本
1.5.x	Dalston版本、Edgware版本
2.0.x	Finchley版本
2.1.x	Greenwich.SR2

但是此次問題是maven依賴導錯了。

之前導的是：

<dependency>
     <groupId>org.springframework.cloud</groupId>
     <artifactId>spring-cloud-netflix-eureka-server</artifactId>
</dependency>

改正： 

<dependency>
     <groupId>org.springframework.cloud</groupId>
     <artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
</dependency>