近期，项目组打算尝试springcloud，因此大军未动，粮草先行，个人先来趟趟水。

这不，开门大吉！！

  先贴上启动类代码，乍一看，没问题呀，很常见的simple-demo                                                             
@EnableDiscoveryClient                                         
@SpringBootApplication                                         
public class EurekaClient {                                    
public static void main(String[] args) {                   
        new SpringApplicationBuilder(EurekaClient.class)       
                    .web(true).run(args);                      
    }                                                          

}                                                              

接着开始启动。。。。

boom -->>

Error starting ApplicationContext. To display the auto-configuration report re-run your application with 'debug' enabled.
2018-07-11 22:47:01.965 ERROR 19920 --- [           main] o.s.b.d.LoggingFailureAnalysisReporter   : 


***************************
APPLICATION FAILED TO START
***************************


Description:


Parameter 1 of method discoveryClient in org.springframework.cloud.netflix.eureka.EurekaClientAutoConfiguration required a bean of type 'com.netflix.discovery.EurekaClient' that could not be found.
- Bean method 'eurekaClient' not loaded because AnyNestedCondition 0 matched 2 did not; NestedCondition on EurekaClientAutoConfiguration.OnMissingRefreshScopeCondition.MissingScope @ConditionalOnMissingBean (types: org.springframework.cloud.autoconfigure.RefreshAutoConfiguration; SearchStrategy: all) found bean 'org.springframework.cloud.autoconfigure.RefreshAutoConfiguration'; NestedCondition on EurekaClientAutoConfiguration.OnMissingRefreshScopeCondition.MissingClass @ConditionalOnMissingClass found unwanted class 'org.springframework.cloud.context.scope.refresh.RefreshScope'




Action:

Consider revisiting the conditions above or defining a bean of type 'com.netflix.discovery.EurekaClient' in your configuration.

很莫名奇妙的挂了，细看才知道 eurekaClient 是 EurekaClientAutoConfiguration类里的RefreshableEurekaClientConfiguration 内部类的一个公开方法名用来找服务的，所以启动类在加载的时候起了冲突，才导致的启动失败。

各位要以此为戒啊，命名规范很重要！！！