spring boot启动报错 NoSuchBeanDefinitionException

在启动springboot时，autowired自动注入报错，

2017-05-26 15:23:05.761  WARN 46372 --- [           main] ationConfigEmbeddedWebApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'mongoTest': Unsatisfied dependency expressed through field 'mongoDaoTest'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'mongo.MongoDaoTest' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
2017-05-26 15:23:05.764  INFO 46372 --- [           main] o.apache.catalina.core.StandardService   : Stopping service Tomcat
2017-05-26 15:23:05.789  INFO 46372 --- [           main] utoConfigurationReportLoggingInitializer : 

Error starting ApplicationContext. To display the auto-configuration report re-run your application with 'debug' enabled.
2017-05-26 15:23:05.891 ERROR 46372 --- [           main] o.s.b.d.LoggingFailureAnalysisReporter   : 

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APPLICATION FAILED TO START
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Description:

Field mongoDaoTest in mongo.MongoTest required a bean of type 'mongo.MongoDaoTest' that could not be found.


Action:

Consider defining a bean of type 'mongo.MongoDaoTest' in your configuration.

会提示注入失败，可以尝试把@EnableAutoConfiguration注解换成@SpringBootApplication;

@SpringBootApplication 注解效果等同于 @Configuration，@EnableAutoConfiguration 及 @ComponentScan 这三个注解一起使用，所以不要在 Controller 上面添加 @EnableAutoConfiguration